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  <infoTable>
    <nameOfIssuer>3-D SYS CORP DEL</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>88554D205</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>3M CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>88579Y101</cusip>
    <value>63</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>3M CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>88579Y101</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ABB LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>000375204</cusip>
    <value>381</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15802</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15802</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ABBOTT LABS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>002824100</cusip>
    <value>180</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ABBOTT LABS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>002824100</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ABBVIE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00287Y109</cusip>
    <value>139</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ABBVIE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00287Y109</cusip>
    <value>1303</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14714</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14714</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>ABBVIE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00287Y109</cusip>
    <value>231</value>
    <shrsOrPrnAmt>
      <sshPrnamt>88900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>88900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ACADIA PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>004225108</cusip>
    <value>57</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ACELRX PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00444T100</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ACHILLION PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00448Q201</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>305400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>305400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ACTIVISION BLIZZARD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00507V109</cusip>
    <value>2711</value>
    <shrsOrPrnAmt>
      <sshPrnamt>45625</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>45625</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ACTIVISION BLIZZARD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00507V109</cusip>
    <value>72</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ACTIVISION BLIZZARD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00507V109</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ADIENT PLC</nameOfIssuer>
    <titleOfClass>ORD SHS</titleOfClass>
    <cusip>G0084W101</cusip>
    <value>114</value>
    <shrsOrPrnAmt>
      <sshPrnamt>61200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>61200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ADOBE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00724F101</cusip>
    <value>181</value>
    <shrsOrPrnAmt>
      <sshPrnamt>116200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>116200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ADOBE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00724F101</cusip>
    <value>368</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ADT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00090Q103</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>186800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>186800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ADVANCED MICRO DEVICES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>007903107</cusip>
    <value>2965</value>
    <shrsOrPrnAmt>
      <sshPrnamt>235800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>235800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ADVANCED MICRO DEVICES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>007903107</cusip>
    <value>99</value>
    <shrsOrPrnAmt>
      <sshPrnamt>174100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>174100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AGENUS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>00847G705</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AGENUS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>00847G705</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AGILENT TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00846U101</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>86800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>86800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AGNC INVT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00123Q104</cusip>
    <value>314</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17746</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17746</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AGNC INVT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00123Q104</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AIMMUNE THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00900T107</cusip>
    <value>89</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AIR TRANSPORT SERVICES GRP I</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00922R105</cusip>
    <value>291</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AK STL HLDG CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>001547108</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>64100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>64100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AKEBIA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>00972D105</cusip>
    <value>26</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AKORN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>009728106</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AKORN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>009728106</cusip>
    <value>82</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALBEMARLE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>012653101</cusip>
    <value>1170</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16025</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16025</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALBEMARLE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>012653101</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALBEMARLE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>012653101</cusip>
    <value>55</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALCOA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>013872106</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALEXCO RESOURCE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>01535P106</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALEXION PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>015351109</cusip>
    <value>53</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALIBABA GROUP HLDG LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>01609W102</cusip>
    <value>4492</value>
    <shrsOrPrnAmt>
      <sshPrnamt>262900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>262900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALIBABA GROUP HLDG LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>01609W102</cusip>
    <value>185</value>
    <shrsOrPrnAmt>
      <sshPrnamt>192200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>192200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALIGN TECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>016255101</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>85400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>85400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLAKOS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>01671P100</cusip>
    <value>288</value>
    <shrsOrPrnAmt>
      <sshPrnamt>60200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>60200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLAKOS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>01671P100</cusip>
    <value>59</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLERGAN PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G0177J108</cusip>
    <value>1625</value>
    <shrsOrPrnAmt>
      <sshPrnamt>106100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>106100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLERGAN PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G0177J108</cusip>
    <value>150</value>
    <shrsOrPrnAmt>
      <sshPrnamt>87600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>87600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLIANCE RES PARTNER L P</nameOfIssuer>
    <titleOfClass>UT LTD PART</titleOfClass>
    <cusip>01877R108</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLIANCE RES PARTNER L P</nameOfIssuer>
    <titleOfClass>UT LTD PART</titleOfClass>
    <cusip>01877R108</cusip>
    <value>83</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLY FINL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02005N100</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>216500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>216500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLY FINL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02005N100</cusip>
    <value>64</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALLY FINL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02005N100</cusip>
    <value>24116</value>
    <shrsOrPrnAmt>
      <sshPrnamt>789138</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>789138</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALPHABET INC</nameOfIssuer>
    <titleOfClass>CAP STK CL C</titleOfClass>
    <cusip>02079K107</cusip>
    <value>1232</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALPHABET INC</nameOfIssuer>
    <titleOfClass>CAP STK CL C</titleOfClass>
    <cusip>02079K107</cusip>
    <value>125</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALPHABET INC</nameOfIssuer>
    <titleOfClass>CAP STK CL A</titleOfClass>
    <cusip>02079K305</cusip>
    <value>1301</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALPHABET INC</nameOfIssuer>
    <titleOfClass>CAP STK CL A</titleOfClass>
    <cusip>02079K305</cusip>
    <value>333</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALPS ETF TR</nameOfIssuer>
    <titleOfClass>ALERIAN MLP</titleOfClass>
    <cusip>00162Q866</cusip>
    <value>1869</value>
    <shrsOrPrnAmt>
      <sshPrnamt>3408100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>3408100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALPS ETF TR</nameOfIssuer>
    <titleOfClass>ALERIAN MLP</titleOfClass>
    <cusip>00162Q866</cusip>
    <value>942</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2369400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2369400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALTICE USA INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>02156K103</cusip>
    <value>52</value>
    <shrsOrPrnAmt>
      <sshPrnamt>44400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>44400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALTRIA GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02209S103</cusip>
    <value>4007</value>
    <shrsOrPrnAmt>
      <sshPrnamt>80290</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>80290</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALTRIA GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02209S103</cusip>
    <value>153</value>
    <shrsOrPrnAmt>
      <sshPrnamt>81300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>81300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ALTRIA GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02209S103</cusip>
    <value>100</value>
    <shrsOrPrnAmt>
      <sshPrnamt>72500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>72500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMARIN CORP PLC</nameOfIssuer>
    <titleOfClass>SPONS ADR NEW</titleOfClass>
    <cusip>023111206</cusip>
    <value>1120</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1611000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1611000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMARIN CORP PLC</nameOfIssuer>
    <titleOfClass>SPONS ADR NEW</titleOfClass>
    <cusip>023111206</cusip>
    <value>163</value>
    <shrsOrPrnAmt>
      <sshPrnamt>58800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>58800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMAZON COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>023135106</cusip>
    <value>1666</value>
    <shrsOrPrnAmt>
      <sshPrnamt>59600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>59600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMAZON COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>023135106</cusip>
    <value>29595</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16016</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16016</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMAZON COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>023135106</cusip>
    <value>12340</value>
    <shrsOrPrnAmt>
      <sshPrnamt>63200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>63200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMC ENTMT HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>00165C104</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>123800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>123800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMC NETWORKS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>00164V103</cusip>
    <value>33</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMC NETWORKS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>00164V103</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMERICAN AIRLS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02376R102</cusip>
    <value>48</value>
    <shrsOrPrnAmt>
      <sshPrnamt>131200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>131200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMERICAN AIRLS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>02376R102</cusip>
    <value>61</value>
    <shrsOrPrnAmt>
      <sshPrnamt>41900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>41900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMERICAN AXLE &amp; MFG HLDGS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>024061103</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMERICAN AXLE &amp; MFG HLDGS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>024061103</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMERICAN EXPRESS CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>025816109</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMERICAN INTL GROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>026874784</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMGEN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>031162100</cusip>
    <value>447</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMGEN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>031162100</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMPHENOL CORP NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>032095101</cusip>
    <value>12154</value>
    <shrsOrPrnAmt>
      <sshPrnamt>112295</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>112295</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMPIO PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03209T109</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AMYRIS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>03236M200</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANGI HOMESERVICES INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>00183L102</cusip>
    <value>246</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANHEUSER BUSCH INBEV SA/NV</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>03524A108</cusip>
    <value>855</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10417</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10417</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANNALY CAP MGMT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>035710409</cusip>
    <value>604</value>
    <shrsOrPrnAmt>
      <sshPrnamt>64128</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>64128</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANNALY CAP MGMT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>035710409</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>41500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>41500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANTARES PHARMA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>036642106</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANTERO RES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03674X106</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANTERO RES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03674X106</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANTHEM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>036752103</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>95400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>95400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ANTHEM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>036752103</cusip>
    <value>81</value>
    <shrsOrPrnAmt>
      <sshPrnamt>100600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>100600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APACHE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>037411105</cusip>
    <value>1100</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42974</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42974</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APACHE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>037411105</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APACHE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>037411105</cusip>
    <value>47</value>
    <shrsOrPrnAmt>
      <sshPrnamt>70500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>70500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APHRIA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03765K104</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APHRIA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03765K104</cusip>
    <value>23</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APOLLO GLOBAL MGMT INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>03768E105</cusip>
    <value>820</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17186</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17186</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APOLLO GLOBAL MGMT INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>03768E105</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APPLE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>037833100</cusip>
    <value>156885</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1646300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1646300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APPLE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>037833100</cusip>
    <value>828</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1126200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1126200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APPLIED MATLS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>038222105</cusip>
    <value>1423</value>
    <shrsOrPrnAmt>
      <sshPrnamt>107700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>107700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APPLIED MATLS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>038222105</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APPLIED OPTOELECTRONICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03823U102</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APPLIED OPTOELECTRONICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03823U102</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>APTIV PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G6095L109</cusip>
    <value>1795</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARCELORMITTAL SA LUXEMBOURG</nameOfIssuer>
    <titleOfClass>NY REGISTRY SH</titleOfClass>
    <cusip>03938L203</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARCELORMITTAL SA LUXEMBOURG</nameOfIssuer>
    <titleOfClass>NY REGISTRY SH</titleOfClass>
    <cusip>03938L203</cusip>
    <value>72</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARCHER DANIELS MIDLAND CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>039483102</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARCHER DANIELS MIDLAND CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>039483102</cusip>
    <value>467</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10065</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10065</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARCONIC INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>03965L100</cusip>
    <value>53</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARENA PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>040047607</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARENA PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>040047607</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARES CAP CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>04010L103</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>191600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>191600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARISTA NETWORKS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>040413106</cusip>
    <value>91</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARK ETF TR</nameOfIssuer>
    <titleOfClass>GENOMIC REV ETF</titleOfClass>
    <cusip>00214Q302</cusip>
    <value>682</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20335</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20335</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARQULE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>04269E107</cusip>
    <value>2229</value>
    <shrsOrPrnAmt>
      <sshPrnamt>389000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>389000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARQULE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>04269E107</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>138400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>138400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ARROWHEAD PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>04280A100</cusip>
    <value>282</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ASSERTIO THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>04545L107</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ASTRAZENECA PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>046353108</cusip>
    <value>250</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AT HOME GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>04650Y100</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ATHENE HLDG LTD</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>G0684D107</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AURINIA PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05156V102</cusip>
    <value>322</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15870</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15870</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AURINIA PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05156V102</cusip>
    <value>485</value>
    <shrsOrPrnAmt>
      <sshPrnamt>58400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>58400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AURORA CANNABIS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05156X108</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>93600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>93600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AURORA CANNABIS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05156X108</cusip>
    <value>268</value>
    <shrsOrPrnAmt>
      <sshPrnamt>77700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>77700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AUTODESK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>052769106</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AUTOMATIC DATA PROCESSING IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>053015103</cusip>
    <value>13369</value>
    <shrsOrPrnAmt>
      <sshPrnamt>78410</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>78410</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AUTOZONE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>053332102</cusip>
    <value>214</value>
    <shrsOrPrnAmt>
      <sshPrnamt>4300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>4300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AVEO PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>053588109</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>106600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>106600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AVEO PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>053588109</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AVIS BUDGET GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>053774105</cusip>
    <value>32</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AVNET INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>053807103</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AVON PRODS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>054303102</cusip>
    <value>868</value>
    <shrsOrPrnAmt>
      <sshPrnamt>153882</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>153882</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AVX CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>002444107</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AXALTA COATING SYS LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G0750C108</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AXALTA COATING SYS LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G0750C108</cusip>
    <value>839</value>
    <shrsOrPrnAmt>
      <sshPrnamt>565600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>565600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>AXSOME THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05464T104</cusip>
    <value>11972</value>
    <shrsOrPrnAmt>
      <sshPrnamt>173700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>173700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAIDU INC</nameOfIssuer>
    <titleOfClass>SPON ADR REP A</titleOfClass>
    <cusip>056752108</cusip>
    <value>1608</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12721</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12721</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAIDU INC</nameOfIssuer>
    <titleOfClass>SPON ADR REP A</titleOfClass>
    <cusip>056752108</cusip>
    <value>638</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAIDU INC</nameOfIssuer>
    <titleOfClass>SPON ADR REP A</titleOfClass>
    <cusip>056752108</cusip>
    <value>217</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAKER HUGHES COMPANY</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>05722G100</cusip>
    <value>646</value>
    <shrsOrPrnAmt>
      <sshPrnamt>251100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>251100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAKER HUGHES COMPANY</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>05722G100</cusip>
    <value>526</value>
    <shrsOrPrnAmt>
      <sshPrnamt>263900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>263900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BALL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>058498106</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BALLARD PWR SYS INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>058586108</cusip>
    <value>223</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31087</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31087</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BANCO BRADESCO S A</nameOfIssuer>
    <titleOfClass>SP ADR PFD NEW</titleOfClass>
    <cusip>059460303</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>472940</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>472940</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BANCO SANTANDER SA</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>05964H105</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BANK AMER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>060505104</cusip>
    <value>1375</value>
    <shrsOrPrnAmt>
      <sshPrnamt>393900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>393900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BANK AMER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>060505104</cusip>
    <value>48</value>
    <shrsOrPrnAmt>
      <sshPrnamt>270000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>270000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BANK NEW YORK MELLON CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>064058100</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>86800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>86800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BANKUNITED INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>06652K103</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>75000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>75000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAOZUN INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>06684L103</cusip>
    <value>224</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAOZUN INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>06684L103</cusip>
    <value>819</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24723</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24723</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BAOZUN INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>06684L103</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BARCLAYS PLC</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>06738E204</cusip>
    <value>39</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BARCLAYS PLC</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>06738E204</cusip>
    <value>2710</value>
    <shrsOrPrnAmt>
      <sshPrnamt>284631</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>284631</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BARRICK GOLD CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>067901108</cusip>
    <value>1082</value>
    <shrsOrPrnAmt>
      <sshPrnamt>58215</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>58215</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BARRICK GOLD CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>067901108</cusip>
    <value>510</value>
    <shrsOrPrnAmt>
      <sshPrnamt>103772</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>103772</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BARRICK GOLD CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>067901108</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>158328</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>158328</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BAUSCH HEALTH COS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>071734107</cusip>
    <value>1032</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34501</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34501</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BAUSCH HEALTH COS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>071734107</cusip>
    <value>57</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BAUSCH HEALTH COS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>071734107</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>208600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>208600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BAXTER INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>071813109</cusip>
    <value>847</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10130</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10130</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BAXTER INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>071813109</cusip>
    <value>32</value>
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      <sshPrnamt>11600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BED BATH &amp; BEYOND INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>075896100</cusip>
    <value>62</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BED BATH &amp; BEYOND INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>075896100</cusip>
    <value>46</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BED BATH &amp; BEYOND INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>075896100</cusip>
    <value>230</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13322</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13322</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BEIGENE LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>07725L102</cusip>
    <value>145</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BEST BUY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>086516101</cusip>
    <value>1663</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18945</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18945</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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    <nameOfIssuer>BEYOND MEAT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>08862E109</cusip>
    <value>1241</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16416</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16416</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BEYOND MEAT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>08862E109</cusip>
    <value>38</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BEYOND MEAT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>08862E109</cusip>
    <value>1253</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BHP GROUP LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>088606108</cusip>
    <value>103</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BILIBILI INC</nameOfIssuer>
    <titleOfClass>SPONS ADS REP Z</titleOfClass>
    <cusip>090040106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31300</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BILIBILI INC</nameOfIssuer>
    <titleOfClass>SPONS ADS REP Z</titleOfClass>
    <cusip>090040106</cusip>
    <value>955</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51306</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51306</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BIOCRYST PHARMACEUTICALS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09058V103</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BIODELIVERY SCIENCES INTL IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09060J106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29200</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BIOGEN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09062X103</cusip>
    <value>869</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40600</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BIOGEN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09062X103</cusip>
    <value>286</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17300</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BIOHAVEN PHARMACTL HLDG CO L</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G11196105</cusip>
    <value>4995</value>
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      <sshPrnamt>91752</sshPrnamt>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>91752</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BIOHAVEN PHARMACTL HLDG CO L</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G11196105</cusip>
    <value>77</value>
    <shrsOrPrnAmt>
      <sshPrnamt>72700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>72700</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BITAUTO HLDGS LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>091727107</cusip>
    <value>36</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BJS RESTAURANTS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09180C106</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10000</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLACKBERRY LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09228F103</cusip>
    <value>124</value>
    <shrsOrPrnAmt>
      <sshPrnamt>92100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>92100</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BLACKBERRY LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09228F103</cusip>
    <value>123</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55400</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BLACKBERRY LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09228F103</cusip>
    <value>332</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51773</sshPrnamt>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51773</Sole>
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      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>BLACKSTONE GROUP INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>09260D107</cusip>
    <value>1268</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22661</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22661</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLACKSTONE GROUP INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>09260D107</cusip>
    <value>607</value>
    <shrsOrPrnAmt>
      <sshPrnamt>86000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
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    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>86000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLACKSTONE GROUP INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>09260D107</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLOCK H &amp; R INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>093671105</cusip>
    <value>458</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19511</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19511</Sole>
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      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLOOM ENERGY CORP</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>093712107</cusip>
    <value>81</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUE APRON HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A NEW</titleOfClass>
    <cusip>09523Q200</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUE APRON HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A NEW</titleOfClass>
    <cusip>09523Q200</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12696</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12696</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUEBIRD BIO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09609G100</cusip>
    <value>1648</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18782</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18782</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUEBIRD BIO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09609G100</cusip>
    <value>102</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUEBIRD BIO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09609G100</cusip>
    <value>503</value>
    <shrsOrPrnAmt>
      <sshPrnamt>47400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>47400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUEPRINT MEDICINES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09627Y109</cusip>
    <value>88</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BLUEPRINT MEDICINES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09627Y109</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BMC STK HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>05591B109</cusip>
    <value>190</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BOEING CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>097023105</cusip>
    <value>817</value>
    <shrsOrPrnAmt>
      <sshPrnamt>165300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>165300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BOEING CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>097023105</cusip>
    <value>1014</value>
    <shrsOrPrnAmt>
      <sshPrnamt>92800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>92800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BOEING CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>097023105</cusip>
    <value>9657</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29643</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29643</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BOOKING HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>09857L108</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BORGWARNER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>099724106</cusip>
    <value>855</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19703</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19703</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BOX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>10316T104</cusip>
    <value>430</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25609</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25609</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BOX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>10316T104</cusip>
    <value>278</value>
    <shrsOrPrnAmt>
      <sshPrnamt>465400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>465400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BP PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>055622104</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>73100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>73100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BP PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>055622104</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRAINSTORM CELL THERAPEUTICS</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>10501E201</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRISTOL MYERS SQUIBB CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>110122108</cusip>
    <value>287835</value>
    <shrsOrPrnAmt>
      <sshPrnamt>4484109</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>4484109</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRISTOL MYERS SQUIBB CO</nameOfIssuer>
    <titleOfClass>RIGHT 99/99/9999</titleOfClass>
    <cusip>110122157</cusip>
    <value>1416</value>
    <shrsOrPrnAmt>
      <sshPrnamt>470526</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>470526</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRISTOL MYERS SQUIBB CO</nameOfIssuer>
    <titleOfClass>RIGHT 99/99/9999</titleOfClass>
    <cusip>110122157</cusip>
    <value>62</value>
    <shrsOrPrnAmt>
      <sshPrnamt>709300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>709300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRISTOL MYERS SQUIBB CO</nameOfIssuer>
    <titleOfClass>RIGHT 99/99/9999</titleOfClass>
    <cusip>110122157</cusip>
    <value>832</value>
    <shrsOrPrnAmt>
      <sshPrnamt>135300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>135300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRITISH AMERN TOB PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>110448107</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BRITISH AMERN TOB PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>110448107</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BROADCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>11135F101</cusip>
    <value>5555</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17577</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17577</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BROADCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>11135F101</cusip>
    <value>154</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BROADCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>11135F101</cusip>
    <value>81</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BROOKFIELD ASSET MGMT INC</nameOfIssuer>
    <titleOfClass>CL A LTD VT SH</titleOfClass>
    <cusip>112585104</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BUNGE LIMITED</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G16962105</cusip>
    <value>2974</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51681</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51681</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>BURLINGTON STORES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>122017106</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CABOT OIL &amp; GAS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>127097103</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>96200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>96200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CABOT OIL &amp; GAS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>127097103</cusip>
    <value>811</value>
    <shrsOrPrnAmt>
      <sshPrnamt>46574</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>46574</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAESARS ENTMT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>127686103</cusip>
    <value>4340</value>
    <shrsOrPrnAmt>
      <sshPrnamt>319153</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>319153</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAESARS ENTMT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>127686103</cusip>
    <value>1255</value>
    <shrsOrPrnAmt>
      <sshPrnamt>760400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>760400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAESARS ENTMT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>127686103</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>355600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>355600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CALIFORNIA RES CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>13057Q206</cusip>
    <value>242</value>
    <shrsOrPrnAmt>
      <sshPrnamt>99900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>99900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CALIFORNIA RES CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>13057Q206</cusip>
    <value>201</value>
    <shrsOrPrnAmt>
      <sshPrnamt>102300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>102300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CALLON PETE CO DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>13123X102</cusip>
    <value>23</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26875</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26875</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAMECO CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>13321L108</cusip>
    <value>355</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39883</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39883</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAMECO CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>13321L108</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAMPBELL SOUP CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>134429109</cusip>
    <value>3351</value>
    <shrsOrPrnAmt>
      <sshPrnamt>300000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>300000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAMPBELL SOUP CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>134429109</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAMPING WORLD HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>13462K109</cusip>
    <value>48</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADA GOOSE HOLDINGS INC</nameOfIssuer>
    <titleOfClass>SHS SUB VTG</titleOfClass>
    <cusip>135086106</cusip>
    <value>672</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18534</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18534</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADA GOOSE HOLDINGS INC</nameOfIssuer>
    <titleOfClass>SHS SUB VTG</titleOfClass>
    <cusip>135086106</cusip>
    <value>33</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADA GOOSE HOLDINGS INC</nameOfIssuer>
    <titleOfClass>SHS SUB VTG</titleOfClass>
    <cusip>135086106</cusip>
    <value>473</value>
    <shrsOrPrnAmt>
      <sshPrnamt>75800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>75800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADIAN NAT RES LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>136385101</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADIAN NAT RES LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>136385101</cusip>
    <value>794</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24530</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24530</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADIAN SOLAR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>136635109</cusip>
    <value>286</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12954</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12954</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANADIAN SOLAR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>136635109</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANOPY GROWTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>138035100</cusip>
    <value>426</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20192</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20192</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANOPY GROWTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>138035100</cusip>
    <value>91</value>
    <shrsOrPrnAmt>
      <sshPrnamt>82900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>82900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CANOPY GROWTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>138035100</cusip>
    <value>536</value>
    <shrsOrPrnAmt>
      <sshPrnamt>560200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>560200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAPRI HOLDINGS LIMITED</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G1890L107</cusip>
    <value>14394</value>
    <shrsOrPrnAmt>
      <sshPrnamt>377304</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>377304</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAPRI HOLDINGS LIMITED</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G1890L107</cusip>
    <value>457</value>
    <shrsOrPrnAmt>
      <sshPrnamt>80600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>80600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CAPRI HOLDINGS LIMITED</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G1890L107</cusip>
    <value>2343</value>
    <shrsOrPrnAmt>
      <sshPrnamt>580000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>580000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>140755109</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARDINAL HEALTH INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>14149Y108</cusip>
    <value>704</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13919</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13919</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARDINAL HEALTH INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>14149Y108</cusip>
    <value>187</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARNIVAL CORP</nameOfIssuer>
    <titleOfClass>UNIT 99/99/9999</titleOfClass>
    <cusip>143658300</cusip>
    <value>1894</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37271</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37271</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARNIVAL CORP</nameOfIssuer>
    <titleOfClass>UNIT 99/99/9999</titleOfClass>
    <cusip>143658300</cusip>
    <value>52</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARNIVAL CORP</nameOfIssuer>
    <titleOfClass>UNIT 99/99/9999</titleOfClass>
    <cusip>143658300</cusip>
    <value>89</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARS COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>14575E105</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>106900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>106900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARVANA CO</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>146869102</cusip>
    <value>10316</value>
    <shrsOrPrnAmt>
      <sshPrnamt>112068</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>112068</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CARVANA CO</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>146869102</cusip>
    <value>7991</value>
    <shrsOrPrnAmt>
      <sshPrnamt>288600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>288600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CATERPILLAR INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>149123101</cusip>
    <value>94</value>
    <shrsOrPrnAmt>
      <sshPrnamt>33700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>33700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CATERPILLAR INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>149123101</cusip>
    <value>190</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CBL &amp; ASSOC PPTYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>124830100</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>95400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>95400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CBL &amp; ASSOC PPTYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>124830100</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CDN IMPERIAL BK COMM TORONTO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>136069101</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CEL SCI CORP</nameOfIssuer>
    <titleOfClass>COM PAR NEW</titleOfClass>
    <cusip>150837607</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CEMEX SAB DE CV</nameOfIssuer>
    <titleOfClass>SPON ADR NEW</titleOfClass>
    <cusip>151290889</cusip>
    <value>326</value>
    <shrsOrPrnAmt>
      <sshPrnamt>86145</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>86145</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CEMEX SAB DE CV</nameOfIssuer>
    <titleOfClass>SPON ADR NEW</titleOfClass>
    <cusip>151290889</cusip>
    <value>33</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENOVUS ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15135U109</cusip>
    <value>485</value>
    <shrsOrPrnAmt>
      <sshPrnamt>47800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>47800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENOVUS ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15135U109</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENOVUS ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15135U109</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTENE CORP DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15135B101</cusip>
    <value>905</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14391</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14391</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTENE CORP DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15135B101</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTENE CORP DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>15135B101</cusip>
    <value>86</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTURYLINK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>156700106</cusip>
    <value>2628</value>
    <shrsOrPrnAmt>
      <sshPrnamt>198916</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>198916</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTURYLINK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>156700106</cusip>
    <value>46</value>
    <shrsOrPrnAmt>
      <sshPrnamt>60700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>60700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CENTURYLINK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>156700106</cusip>
    <value>1121</value>
    <shrsOrPrnAmt>
      <sshPrnamt>780600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>780600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CERENCE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>156727109</cusip>
    <value>803</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35484</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35484</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEGG INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>163092109</cusip>
    <value>487</value>
    <shrsOrPrnAmt>
      <sshPrnamt>151700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>151700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEMOURS CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>163851108</cusip>
    <value>174</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1246700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1246700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEMOURS CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>163851108</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHENIERE ENERGY INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>16411R208</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>58800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>58800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHESAPEAKE ENERGY CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>165167107</cusip>
    <value>71</value>
    <shrsOrPrnAmt>
      <sshPrnamt>94000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>94000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHESAPEAKE ENERGY CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>165167107</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2770900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2770900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEVRON CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>166764100</cusip>
    <value>58</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEVRON CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>166764100</cusip>
    <value>45</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEWY INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>16679L109</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHEWY INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>16679L109</cusip>
    <value>83</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHICOS FAS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>168615102</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>102700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>102700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHILDRENS PL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>168905107</cusip>
    <value>297</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHILDRENS PL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>168905107</cusip>
    <value>1486</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23768</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23768</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHINA MOBILE LIMITED</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>16941M109</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHINA MOBILE LIMITED</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>16941M109</cusip>
    <value>548</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12957</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12957</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHIPOTLE MEXICAN GRILL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>169656105</cusip>
    <value>1094</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CHIPOTLE MEXICAN GRILL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>169656105</cusip>
    <value>175</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIENA CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>171779309</cusip>
    <value>1195</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27983</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27983</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIENA CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>171779309</cusip>
    <value>71</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIENA CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>171779309</cusip>
    <value>25</value>
    <shrsOrPrnAmt>
      <sshPrnamt>169500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>169500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIGNA CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>125523100</cusip>
    <value>2200</value>
    <shrsOrPrnAmt>
      <sshPrnamt>115456</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>115456</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIGNA CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>125523100</cusip>
    <value>62</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13216</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13216</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIGNA CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>125523100</cusip>
    <value>56143</value>
    <shrsOrPrnAmt>
      <sshPrnamt>274551</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>274551</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CINTAS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>172908105</cusip>
    <value>25</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CIRRUS LOGIC INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>172755100</cusip>
    <value>509</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CISCO SYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>17275R102</cusip>
    <value>28817</value>
    <shrsOrPrnAmt>
      <sshPrnamt>600863</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>600863</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CISCO SYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>17275R102</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>49800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>49800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CISCO SYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>17275R102</cusip>
    <value>135</value>
    <shrsOrPrnAmt>
      <sshPrnamt>60100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>60100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CITIGROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>172967424</cusip>
    <value>16464</value>
    <shrsOrPrnAmt>
      <sshPrnamt>206087</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>206087</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CITIGROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>172967424</cusip>
    <value>1003</value>
    <shrsOrPrnAmt>
      <sshPrnamt>124000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>124000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CITIGROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>172967424</cusip>
    <value>108</value>
    <shrsOrPrnAmt>
      <sshPrnamt>74500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>74500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLEVELAND CLIFFS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>185899101</cusip>
    <value>179</value>
    <shrsOrPrnAmt>
      <sshPrnamt>96900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>96900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLEVELAND CLIFFS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>185899101</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLOUDERA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>18914U100</cusip>
    <value>164</value>
    <shrsOrPrnAmt>
      <sshPrnamt>529100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>529100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLOUDERA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>18914U100</cusip>
    <value>918</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2686400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2686400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLOUDFLARE INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>18915M107</cusip>
    <value>919</value>
    <shrsOrPrnAmt>
      <sshPrnamt>53892</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>53892</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLOUDFLARE INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>18915M107</cusip>
    <value>208</value>
    <shrsOrPrnAmt>
      <sshPrnamt>438900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>438900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLOVIS ONCOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>189464100</cusip>
    <value>1921</value>
    <shrsOrPrnAmt>
      <sshPrnamt>997500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>997500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CLOVIS ONCOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>189464100</cusip>
    <value>2697</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1332400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1332400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CME GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>12572Q105</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CNX MIDSTREAM PARTNERS LP</nameOfIssuer>
    <titleOfClass>COM UNIT REPST</titleOfClass>
    <cusip>12654A101</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CNX MIDSTREAM PARTNERS LP</nameOfIssuer>
    <titleOfClass>COM UNIT REPST</titleOfClass>
    <cusip>12654A101</cusip>
    <value>68</value>
    <shrsOrPrnAmt>
      <sshPrnamt>300800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>300800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COCA COLA CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>191216100</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COCA COLA CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>191216100</cusip>
    <value>154</value>
    <shrsOrPrnAmt>
      <sshPrnamt>94300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>94300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COEUR MNG INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>192108504</cusip>
    <value>198</value>
    <shrsOrPrnAmt>
      <sshPrnamt>77100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>77100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COEUR MNG INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>192108504</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COLGATE PALMOLIVE CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>194162103</cusip>
    <value>929</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13494</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13494</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COLONY CAP INC NEW</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>19626G108</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMCAST CORP NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>20030N101</cusip>
    <value>55</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMCAST CORP NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>20030N101</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMERICA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>200340107</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMMSCOPE HLDG CO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20337X109</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>41100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>41100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMMSCOPE HLDG CO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20337X109</cusip>
    <value>361</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25448</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25448</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMMUNITY HEALTH SYS INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>203668108</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>156100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>156100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMMUNITY HEALTH SYS INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>203668108</cusip>
    <value>38</value>
    <shrsOrPrnAmt>
      <sshPrnamt>125000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>125000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMPASS DIVERSIFIED HOLDINGS</nameOfIssuer>
    <titleOfClass>SH BEN INT</titleOfClass>
    <cusip>20451Q104</cusip>
    <value>619</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24899</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24899</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COMSTOCK RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>205768302</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONAGRA BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>205887102</cusip>
    <value>25697</value>
    <shrsOrPrnAmt>
      <sshPrnamt>750506</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>750506</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONAGRA BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>205887102</cusip>
    <value>147</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONCHO RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20605P101</cusip>
    <value>3652</value>
    <shrsOrPrnAmt>
      <sshPrnamt>41709</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>41709</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONCHO RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20605P101</cusip>
    <value>5320</value>
    <shrsOrPrnAmt>
      <sshPrnamt>412800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>412800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONCHO RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20605P101</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONDUENT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>206787103</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>45200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>45200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONNS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>208242107</cusip>
    <value>244</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19669</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19669</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONNS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>208242107</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONOCOPHILLIPS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20825C104</cusip>
    <value>1026</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15777</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15777</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONOCOPHILLIPS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>20825C104</cusip>
    <value>50</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONSOLIDATED COMM HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>209034107</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONSTELLATION BRANDS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>21036P108</cusip>
    <value>54</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CONTINENTAL RESOURCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>212015101</cusip>
    <value>42</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORECIVIC INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>21871N101</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>33200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>33200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORNING INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>219350105</cusip>
    <value>651</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22373</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22373</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORNING INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>219350105</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORNING INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>219350105</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORTEVA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22052L104</cusip>
    <value>2041</value>
    <shrsOrPrnAmt>
      <sshPrnamt>69057</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>69057</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORTEVA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22052L104</cusip>
    <value>75</value>
    <shrsOrPrnAmt>
      <sshPrnamt>87900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>87900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CORTEVA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22052L104</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>88000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>88000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COSTCO WHSL CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22160K105</cusip>
    <value>43</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COSTCO WHSL CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22160K105</cusip>
    <value>506</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COTY INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>222070203</cusip>
    <value>467</value>
    <shrsOrPrnAmt>
      <sshPrnamt>409100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>409100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COTY INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>222070203</cusip>
    <value>1176</value>
    <shrsOrPrnAmt>
      <sshPrnamt>104533</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>104533</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COTY INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>222070203</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COUPA SOFTWARE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22266L106</cusip>
    <value>1467</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COUPA SOFTWARE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22266L106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>45600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>45600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>COVETRUS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22304C100</cusip>
    <value>51</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CRACKER BARREL OLD CTRY STOR</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22410J106</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>71000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>71000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CREE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>225447101</cusip>
    <value>7470</value>
    <shrsOrPrnAmt>
      <sshPrnamt>161874</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>161874</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CRISPR THERAPEUTICS AG</nameOfIssuer>
    <titleOfClass>NAMEN AKT</titleOfClass>
    <cusip>H17182108</cusip>
    <value>64</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CRISPR THERAPEUTICS AG</nameOfIssuer>
    <titleOfClass>NAMEN AKT</titleOfClass>
    <cusip>H17182108</cusip>
    <value>354</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CRONOS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22717L101</cusip>
    <value>69</value>
    <shrsOrPrnAmt>
      <sshPrnamt>137100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>137100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CRONOS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>22717L101</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CROWDSTRIKE HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>22788C105</cusip>
    <value>66</value>
    <shrsOrPrnAmt>
      <sshPrnamt>47300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>47300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CROWDSTRIKE HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>22788C105</cusip>
    <value>37</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CSI COMPRESSCO LP</nameOfIssuer>
    <titleOfClass>COM UNIT</titleOfClass>
    <cusip>12637A103</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CSX CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>126408103</cusip>
    <value>329</value>
    <shrsOrPrnAmt>
      <sshPrnamt>49600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>49600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CVS HEALTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>126650100</cusip>
    <value>178</value>
    <shrsOrPrnAmt>
      <sshPrnamt>370113</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>370113</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CVS HEALTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>126650100</cusip>
    <value>10299</value>
    <shrsOrPrnAmt>
      <sshPrnamt>138629</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>138629</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>CVS HEALTH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>126650100</cusip>
    <value>3390</value>
    <shrsOrPrnAmt>
      <sshPrnamt>332945</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>332945</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>D R HORTON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23331A109</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>D R HORTON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23331A109</cusip>
    <value>47038</value>
    <shrsOrPrnAmt>
      <sshPrnamt>891725</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>891725</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>D R HORTON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23331A109</cusip>
    <value>482</value>
    <shrsOrPrnAmt>
      <sshPrnamt>154400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>154400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DATADOG INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>23804L103</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DAVITA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23918K108</cusip>
    <value>616</value>
    <shrsOrPrnAmt>
      <sshPrnamt>44400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>44400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DAVITA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23918K108</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>210400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>210400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DBV TECHNOLOGIES S A</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>23306J101</cusip>
    <value>26</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DBX ETF TR</nameOfIssuer>
    <titleOfClass>XTRACK HRVST CSI</titleOfClass>
    <cusip>233051879</cusip>
    <value>1808</value>
    <shrsOrPrnAmt>
      <sshPrnamt>797600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>797600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DBX ETF TR</nameOfIssuer>
    <titleOfClass>XTRACK HRVST CSI</titleOfClass>
    <cusip>233051879</cusip>
    <value>526</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1130300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1130300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DCP MIDSTREAM LP</nameOfIssuer>
    <titleOfClass>COM UT LTD PTN</titleOfClass>
    <cusip>23311P100</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DCP MIDSTREAM LP</nameOfIssuer>
    <titleOfClass>COM UT LTD PTN</titleOfClass>
    <cusip>23311P100</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DECIPHERA PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>24344T101</cusip>
    <value>550</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DECIPHERA PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>24344T101</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DEERE &amp; CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>244199105</cusip>
    <value>46</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DELL TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>CL C</titleOfClass>
    <cusip>24703L202</cusip>
    <value>147</value>
    <shrsOrPrnAmt>
      <sshPrnamt>80900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>80900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DELL TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>CL C</titleOfClass>
    <cusip>24703L202</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>64500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>64500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DELPHI TECHNOLOGIES PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G2709G107</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DELTA AIR LINES INC DEL</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>247361702</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DELTA AIR LINES INC DEL</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>247361702</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DENBURY RES INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>247916208</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>59100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>59100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DENBURY RES INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>247916208</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DEUTSCHE BANK AG</nameOfIssuer>
    <titleOfClass>NAMEN AKT</titleOfClass>
    <cusip>D18190898</cusip>
    <value>309</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1181500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1181500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DEUTSCHE BANK AG</nameOfIssuer>
    <titleOfClass>NAMEN AKT</titleOfClass>
    <cusip>D18190898</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DEXCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>252131107</cusip>
    <value>7199</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32909</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32909</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DEXCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>252131107</cusip>
    <value>892</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DEXCOM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>252131107</cusip>
    <value>635</value>
    <shrsOrPrnAmt>
      <sshPrnamt>129100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>129100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DHT HOLDINGS INC</nameOfIssuer>
    <titleOfClass>SHS NEW</titleOfClass>
    <cusip>Y2065G121</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIAMOND OFFSHORE DRILLING IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>25271C102</cusip>
    <value>217</value>
    <shrsOrPrnAmt>
      <sshPrnamt>332200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>332200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIAMOND OFFSHORE DRILLING IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>25271C102</cusip>
    <value>1625</value>
    <shrsOrPrnAmt>
      <sshPrnamt>225953</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>225953</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIAMONDBACK ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>25278X109</cusip>
    <value>23</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIGITAL RLTY TR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>253868103</cusip>
    <value>542</value>
    <shrsOrPrnAmt>
      <sshPrnamt>102100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>102100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIGITAL TURBINE INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>25400W102</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DILLARDS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>254067101</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY SCOND 3XBU</titleOfClass>
    <cusip>25459W458</cusip>
    <value>1142</value>
    <shrsOrPrnAmt>
      <sshPrnamt>8700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>8700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DRX S&amp;P500BULL</titleOfClass>
    <cusip>25459W862</cusip>
    <value>400</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DRX S&amp;P500BULL</titleOfClass>
    <cusip>25459W862</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY ENRGY BULL3X</titleOfClass>
    <cusip>25459W888</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY ENRGY BULL3X</titleOfClass>
    <cusip>25459W888</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY FIN BULL NEW</titleOfClass>
    <cusip>25459Y694</cusip>
    <value>167</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY FIN BULL NEW</titleOfClass>
    <cusip>25459Y694</cusip>
    <value>33</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DAILY NATRL GAS</titleOfClass>
    <cusip>25460E158</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DAILY JR GLD MIN</titleOfClass>
    <cusip>25460E166</cusip>
    <value>271</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DAILY JR GLD MIN</titleOfClass>
    <cusip>25460E166</cusip>
    <value>67</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY GOLD INDX 3X</titleOfClass>
    <cusip>25460E844</cusip>
    <value>562</value>
    <shrsOrPrnAmt>
      <sshPrnamt>114000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>114000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY GOLD INDX 3X</titleOfClass>
    <cusip>25460E844</cusip>
    <value>290</value>
    <shrsOrPrnAmt>
      <sshPrnamt>73000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>73000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DLY S&amp;P500 BR 3X</titleOfClass>
    <cusip>25460E885</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>DAILY GOLD MINER</titleOfClass>
    <cusip>25490K133</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>BRZ BL 3X SH NEW</titleOfClass>
    <cusip>25490K315</cusip>
    <value>39</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>SP BIOTCH BL NEW</titleOfClass>
    <cusip>25490K323</cusip>
    <value>374</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DIREXION SHS ETF TR</nameOfIssuer>
    <titleOfClass>CSI 300 BULL2X</titleOfClass>
    <cusip>25490K869</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISCOVER FINL SVCS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>254709108</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISCOVER FINL SVCS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>254709108</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISCOVERY INC</nameOfIssuer>
    <titleOfClass>COM SER C</titleOfClass>
    <cusip>25470F302</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISH NETWORK CORP</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>25470M109</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>62000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>62000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISH NETWORK CORP</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>25470M109</cusip>
    <value>60</value>
    <shrsOrPrnAmt>
      <sshPrnamt>46300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>46300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISNEY WALT CO</nameOfIssuer>
    <titleOfClass>COM DISNEY</titleOfClass>
    <cusip>254687106</cusip>
    <value>154</value>
    <shrsOrPrnAmt>
      <sshPrnamt>360200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>360200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISNEY WALT CO</nameOfIssuer>
    <titleOfClass>COM DISNEY</titleOfClass>
    <cusip>254687106</cusip>
    <value>12223</value>
    <shrsOrPrnAmt>
      <sshPrnamt>84513</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>84513</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DISNEY WALT CO</nameOfIssuer>
    <titleOfClass>COM DISNEY</titleOfClass>
    <cusip>254687106</cusip>
    <value>557</value>
    <shrsOrPrnAmt>
      <sshPrnamt>118400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>118400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOCUSIGN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>256163106</cusip>
    <value>223</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOLLAR GEN CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>256677105</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOLLAR GEN CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>256677105</cusip>
    <value>3095</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19844</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19844</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOLLAR TREE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>256746108</cusip>
    <value>2138</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22733</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22733</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOLLAR TREE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>256746108</cusip>
    <value>131</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOLLAR TREE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>256746108</cusip>
    <value>51</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOMINION ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>25746U109</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>260003108</cusip>
    <value>59</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DOW INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>260557103</cusip>
    <value>60</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DROPBOX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>26210C104</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DROPBOX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>26210C104</cusip>
    <value>92</value>
    <shrsOrPrnAmt>
      <sshPrnamt>416100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>416100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DROPBOX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>26210C104</cusip>
    <value>486</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27161</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27161</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DUKE ENERGY CORP NEW</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>26441C204</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DUPONT DE NEMOURS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>26614N102</cusip>
    <value>9956</value>
    <shrsOrPrnAmt>
      <sshPrnamt>155071</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>155071</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DUPONT DE NEMOURS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>26614N102</cusip>
    <value>620</value>
    <shrsOrPrnAmt>
      <sshPrnamt>206618</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>206618</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DURECT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>266605104</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>DXC TECHNOLOGY CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>23355L106</cusip>
    <value>105</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>E TRADE FINANCIAL CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>269246401</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>E TRADE FINANCIAL CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>269246401</cusip>
    <value>633</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13946</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13946</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EBAY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>278642103</cusip>
    <value>2040</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56481</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56481</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EBAY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>278642103</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>69800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>69800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ECOLAB INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>278865100</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EDGEWELL PERS CARE CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>28035Q102</cusip>
    <value>7868</value>
    <shrsOrPrnAmt>
      <sshPrnamt>254146</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>254146</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EDISON INTL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>281020107</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>161300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>161300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EDITAS MEDICINE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>28106W103</cusip>
    <value>68</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EDITAS MEDICINE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>28106W103</cusip>
    <value>51</value>
    <shrsOrPrnAmt>
      <sshPrnamt>182500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>182500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ELASTIC N V</nameOfIssuer>
    <titleOfClass>ORD SHS</titleOfClass>
    <cusip>N14506104</cusip>
    <value>131</value>
    <shrsOrPrnAmt>
      <sshPrnamt>84300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>84300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ELECTRONIC ARTS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>285512109</cusip>
    <value>600</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ELECTRONIC ARTS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>285512109</cusip>
    <value>61</value>
    <shrsOrPrnAmt>
      <sshPrnamt>103900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>103900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENBRIDGE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29250N105</cusip>
    <value>494</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12415</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12415</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENBRIDGE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29250N105</cusip>
    <value>45</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENBRIDGE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29250N105</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENCANA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>292505104</cusip>
    <value>279</value>
    <shrsOrPrnAmt>
      <sshPrnamt>59485</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>59485</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENCANA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>292505104</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50469</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50469</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENCANA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>292505104</cusip>
    <value>80</value>
    <shrsOrPrnAmt>
      <sshPrnamt>57700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>57700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENCORE CAP GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>292554102</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>142900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>142900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENCORE CAP GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>292554102</cusip>
    <value>113</value>
    <shrsOrPrnAmt>
      <sshPrnamt>66300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>66300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENDEAVOUR SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29258Y103</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENDO INTL PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G30401106</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENDO INTL PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G30401106</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENERGY TRANSFER LP</nameOfIssuer>
    <titleOfClass>COM UT LTD PTN</titleOfClass>
    <cusip>29273V100</cusip>
    <value>239</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18612</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18612</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENERGY TRANSFER LP</nameOfIssuer>
    <titleOfClass>COM UT LTD PTN</titleOfClass>
    <cusip>29273V100</cusip>
    <value>688</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1494160</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1494160</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENERGY TRANSFER LP</nameOfIssuer>
    <titleOfClass>COM UT LTD PTN</titleOfClass>
    <cusip>29273V100</cusip>
    <value>158</value>
    <shrsOrPrnAmt>
      <sshPrnamt>346372</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>346372</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENPHASE ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29355A107</cusip>
    <value>189</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENTERPRISE PRODS PARTNERS L</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>293792107</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENTERPRISE PRODS PARTNERS L</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>293792107</cusip>
    <value>286</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10167</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10167</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENTERPRISE PRODS PARTNERS L</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>293792107</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ENVISTA HLDGS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29415F104</cusip>
    <value>2157</value>
    <shrsOrPrnAmt>
      <sshPrnamt>72785</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>72785</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EOG RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>26875P101</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EOG RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>26875P101</cusip>
    <value>37</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EPIZYME INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>29428V104</cusip>
    <value>160</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EQT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>26884L109</cusip>
    <value>41</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EQUIFAX INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>294429105</cusip>
    <value>4066</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29017</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29017</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ERICSSON</nameOfIssuer>
    <titleOfClass>ADR B SEK 10</titleOfClass>
    <cusip>294821608</cusip>
    <value>411</value>
    <shrsOrPrnAmt>
      <sshPrnamt>46832</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>46832</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EROS INTL PLC</nameOfIssuer>
    <titleOfClass>SHS NEW</titleOfClass>
    <cusip>G3788M114</cusip>
    <value>49</value>
    <shrsOrPrnAmt>
      <sshPrnamt>41500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>41500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ETF MANAGERS TR</nameOfIssuer>
    <titleOfClass>ETFMG ALTR HRVST</titleOfClass>
    <cusip>26924G508</cusip>
    <value>110</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ETF MANAGERS TR</nameOfIssuer>
    <titleOfClass>ETFMG ALTR HRVST</titleOfClass>
    <cusip>26924G508</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>64400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>64400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ETFIS SER TR I</nameOfIssuer>
    <titleOfClass>INFRAC ACT MLP</titleOfClass>
    <cusip>26923G103</cusip>
    <value>300</value>
    <shrsOrPrnAmt>
      <sshPrnamt>66356</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>66356</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EVOQUA WATER TECHNOLOGIES CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30057T105</cusip>
    <value>75</value>
    <shrsOrPrnAmt>
      <sshPrnamt>92100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>92100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXACT SCIENCES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30063P105</cusip>
    <value>57</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXACT SCIENCES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30063P105</cusip>
    <value>85</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1004500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1004500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXELIXIS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30161Q104</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXELON CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30161N101</cusip>
    <value>39</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXPEDIA GROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>30212P303</cusip>
    <value>125</value>
    <shrsOrPrnAmt>
      <sshPrnamt>124400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>124400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXPEDIA GROUP INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>30212P303</cusip>
    <value>133</value>
    <shrsOrPrnAmt>
      <sshPrnamt>81200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>81200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>EXPRESS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>30219E103</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FACEBOOK INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>30303M102</cusip>
    <value>162</value>
    <shrsOrPrnAmt>
      <sshPrnamt>82600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>82600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FACEBOOK INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>30303M102</cusip>
    <value>2006</value>
    <shrsOrPrnAmt>
      <sshPrnamt>96700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>96700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FACEBOOK INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>30303M102</cusip>
    <value>20938</value>
    <shrsOrPrnAmt>
      <sshPrnamt>102013</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>102013</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FASTLY INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>31188V100</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FEDEX CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>31428X106</cusip>
    <value>233</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FEDEX CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>31428X106</cusip>
    <value>281</value>
    <shrsOrPrnAmt>
      <sshPrnamt>90800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>90800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIBROGEN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>31572Q808</cusip>
    <value>188</value>
    <shrsOrPrnAmt>
      <sshPrnamt>80800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>80800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIDELITY COVINGTON TR</nameOfIssuer>
    <titleOfClass>MSCI RL EST ETF</titleOfClass>
    <cusip>316092857</cusip>
    <value>512</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18365</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18365</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIDELITY NATL INFORMATION SV</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>31620M106</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIDELITY NATL INFORMATION SV</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>31620M106</cusip>
    <value>5054</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36333</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36333</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIFTH THIRD BANCORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>316773100</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIREEYE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>31816Q101</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>86400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>86400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIRST MAJESTIC SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>32076V103</cusip>
    <value>319</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26051</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26051</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIRST MAJESTIC SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>32076V103</cusip>
    <value>112</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIRST MAJESTIC SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>32076V103</cusip>
    <value>50</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIRST TR S&amp;P REIT INDEX FD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>33734G108</cusip>
    <value>551</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21111</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21111</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIRSTENERGY CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>337932107</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FITBIT INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>33812L102</cusip>
    <value>315</value>
    <shrsOrPrnAmt>
      <sshPrnamt>851600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>851600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FITBIT INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>33812L102</cusip>
    <value>67</value>
    <shrsOrPrnAmt>
      <sshPrnamt>212500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>212500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FIVE BELOW INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>33829M101</cusip>
    <value>66</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLEETCOR TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>339041105</cusip>
    <value>66</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLEETCOR TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>339041105</cusip>
    <value>45</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLEX LTD</nameOfIssuer>
    <titleOfClass>ORD</titleOfClass>
    <cusip>Y2573F102</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLOOR &amp; DECOR HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>339750101</cusip>
    <value>2734</value>
    <shrsOrPrnAmt>
      <sshPrnamt>53805</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>53805</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLOOR &amp; DECOR HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>339750101</cusip>
    <value>382</value>
    <shrsOrPrnAmt>
      <sshPrnamt>125200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>125200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLOOR &amp; DECOR HLDGS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>339750101</cusip>
    <value>101</value>
    <shrsOrPrnAmt>
      <sshPrnamt>125900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>125900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLUOR CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>343412102</cusip>
    <value>115</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FLY LEASING LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>34407D109</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FOOT LOCKER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>344849104</cusip>
    <value>3478</value>
    <shrsOrPrnAmt>
      <sshPrnamt>89199</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>89199</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FOOT LOCKER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>344849104</cusip>
    <value>441</value>
    <shrsOrPrnAmt>
      <sshPrnamt>82400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>82400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORD MTR CO DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>345370860</cusip>
    <value>1144</value>
    <shrsOrPrnAmt>
      <sshPrnamt>123031</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>123031</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORD MTR CO DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>345370860</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>157300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>157300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORD MTR CO DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>345370860</cusip>
    <value>205</value>
    <shrsOrPrnAmt>
      <sshPrnamt>252200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>252200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORESCOUT TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>34553D101</cusip>
    <value>1168</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35623</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35623</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORESCOUT TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>34553D101</cusip>
    <value>89</value>
    <shrsOrPrnAmt>
      <sshPrnamt>161600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>161600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORESTAR GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>346232101</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FORTUNA SILVER MINES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>349915108</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FREEPORT-MCMORAN INC</nameOfIssuer>
    <titleOfClass>CL B</titleOfClass>
    <cusip>35671D857</cusip>
    <value>186</value>
    <shrsOrPrnAmt>
      <sshPrnamt>132300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>132300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FREEPORT-MCMORAN INC</nameOfIssuer>
    <titleOfClass>CL B</titleOfClass>
    <cusip>35671D857</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>52800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>52800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FRONT YD RESIDENTIAL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>35904G107</cusip>
    <value>2627</value>
    <shrsOrPrnAmt>
      <sshPrnamt>212856</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>212856</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FRONT YD RESIDENTIAL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>35904G107</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FRONT YD RESIDENTIAL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>35904G107</cusip>
    <value>458</value>
    <shrsOrPrnAmt>
      <sshPrnamt>610300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>610300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FRONTIER COMMUNICATIONS CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>35906A306</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>139200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>139200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FRONTIER COMMUNICATIONS CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>35906A306</cusip>
    <value>106</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FRONTLINE LTD</nameOfIssuer>
    <titleOfClass>SHS NEW</titleOfClass>
    <cusip>G3682E192</cusip>
    <value>49</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FUELCELL ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>35952H601</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>FUELCELL ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>35952H601</cusip>
    <value>226</value>
    <shrsOrPrnAmt>
      <sshPrnamt>166100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>166100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GAMESTOP CORP NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>36467W109</cusip>
    <value>82</value>
    <shrsOrPrnAmt>
      <sshPrnamt>168600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>168600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GAMESTOP CORP NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>36467W109</cusip>
    <value>98</value>
    <shrsOrPrnAmt>
      <sshPrnamt>273900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>273900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GAP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>364760108</cusip>
    <value>547</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30943</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30943</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GAP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>364760108</cusip>
    <value>81</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GARDNER DENVER HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>36555P107</cusip>
    <value>65</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GARMIN LTD</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>H2906T109</cusip>
    <value>1721</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17643</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17643</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GDS HLDGS LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>36165L108</cusip>
    <value>7020</value>
    <shrsOrPrnAmt>
      <sshPrnamt>878300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>878300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENERAL ELECTRIC CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>369604103</cusip>
    <value>596</value>
    <shrsOrPrnAmt>
      <sshPrnamt>982900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>982900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENERAL ELECTRIC CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>369604103</cusip>
    <value>849</value>
    <shrsOrPrnAmt>
      <sshPrnamt>76034</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>76034</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENERAL ELECTRIC CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>369604103</cusip>
    <value>2633</value>
    <shrsOrPrnAmt>
      <sshPrnamt>5074600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>5074600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENERAL MLS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>370334104</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENERAL MTRS CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>37045V100</cusip>
    <value>1100</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1030300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1030300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENERAL MTRS CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>37045V100</cusip>
    <value>371</value>
    <shrsOrPrnAmt>
      <sshPrnamt>141300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>141300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENWORTH FINL INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>37247D106</cusip>
    <value>248</value>
    <shrsOrPrnAmt>
      <sshPrnamt>4511500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>4511500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GENWORTH FINL INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>37247D106</cusip>
    <value>159</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1252300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1252300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GEO GROUP INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>36162J106</cusip>
    <value>478</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28756</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28756</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GERON CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>374163103</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>G-III APPAREL GROUP LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>36237H101</cusip>
    <value>386</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11521</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11521</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GILEAD SCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>375558103</cusip>
    <value>9651</value>
    <shrsOrPrnAmt>
      <sshPrnamt>148528</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>148528</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GILEAD SCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>375558103</cusip>
    <value>83</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GILEAD SCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>375558103</cusip>
    <value>328</value>
    <shrsOrPrnAmt>
      <sshPrnamt>165100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>165100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLAXOSMITHKLINE PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>37733W105</cusip>
    <value>318</value>
    <shrsOrPrnAmt>
      <sshPrnamt>76800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>76800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLOBAL BLOOD THERAPEUTICS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>37890U108</cusip>
    <value>67</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLOBAL X FDS</nameOfIssuer>
    <titleOfClass>GB MSCI AR ETF</titleOfClass>
    <cusip>37950E259</cusip>
    <value>298</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11204</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11204</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLOBAL X FDS</nameOfIssuer>
    <titleOfClass>GLBL X MLP ETF</titleOfClass>
    <cusip>37950E473</cusip>
    <value>516</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65466</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65466</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLOBAL X FDS</nameOfIssuer>
    <titleOfClass>GLOBAL X SILVER</titleOfClass>
    <cusip>37954Y848</cusip>
    <value>624</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18792</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18792</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLOBALSTAR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>378973408</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GLU MOBILE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>379890106</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GNC HLDGS INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>36191G107</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOGO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>38046C109</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOGO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>38046C109</cusip>
    <value>224</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35040</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35040</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOLAR LNG PARTNERS LP</nameOfIssuer>
    <titleOfClass>COM UNIT LPI</titleOfClass>
    <cusip>Y2745C102</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOLD FIELDS LTD NEW</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>38059T106</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOLDEN OCEAN GROUP LTD</nameOfIssuer>
    <titleOfClass>SHS NEW</titleOfClass>
    <cusip>G39637205</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOLDEN STAR RES LTD CDA</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>38119T807</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOLDMAN SACHS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>38141G104</cusip>
    <value>156</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOLDMAN SACHS GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>38141G104</cusip>
    <value>90</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOODYEAR TIRE &amp; RUBR CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>382550101</cusip>
    <value>86</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOODYEAR TIRE &amp; RUBR CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>382550101</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOPRO INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>38268T103</cusip>
    <value>94</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GOPRO INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>38268T103</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>60500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>60500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GROUPON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>399473107</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GROUPON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>399473107</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GRUBHUB INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>400110102</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GRUBHUB INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>400110102</cusip>
    <value>85</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GRUPO FINANCIERO GALICIA S A</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>399909100</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GRUPO FINANCIERO GALICIA S A</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>399909100</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>GTT COMMUNICATIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>362393100</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HAIN CELESTIAL GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>405217100</cusip>
    <value>91</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HALLIBURTON CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>406216101</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>398600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>398600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HALLIBURTON CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>406216101</cusip>
    <value>126</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HALOZYME THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>40637H109</cusip>
    <value>45</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HANESBRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>410345102</cusip>
    <value>518</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34851</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34851</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HANESBRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>410345102</cusip>
    <value>48</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HANNON ARMSTRONG SUST INFR C</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>41068X100</cusip>
    <value>36</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HARLEY DAVIDSON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>412822108</cusip>
    <value>394</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10596</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10596</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HASBRO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>418056107</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HD SUPPLY HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>40416M105</cusip>
    <value>5744</value>
    <shrsOrPrnAmt>
      <sshPrnamt>142818</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>142818</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HDFC BANK LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>40415F101</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>33700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>33700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HDFC BANK LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>40415F101</cusip>
    <value>2242</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35375</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35375</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HEALTH INS INNOVATIONS INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>42225K106</cusip>
    <value>609</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31552</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31552</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HEALTH INS INNOVATIONS INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>42225K106</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HEALTHPEAK PPTYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>42250P103</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HEARTLAND EXPRESS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>422347104</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HECLA MNG CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>422704106</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HECLA MNG CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>422704106</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HERBALIFE NUTRITION LTD</nameOfIssuer>
    <titleOfClass>COM SHS</titleOfClass>
    <cusip>G4412G101</cusip>
    <value>36</value>
    <shrsOrPrnAmt>
      <sshPrnamt>321600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>321600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HERBALIFE NUTRITION LTD</nameOfIssuer>
    <titleOfClass>COM SHS</titleOfClass>
    <cusip>G4412G101</cusip>
    <value>551</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11551</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11551</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HERTZ GLOBAL HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>42806J106</cusip>
    <value>3319</value>
    <shrsOrPrnAmt>
      <sshPrnamt>210714</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>210714</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HERTZ GLOBAL HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>42806J106</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HERTZ GLOBAL HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>42806J106</cusip>
    <value>250</value>
    <shrsOrPrnAmt>
      <sshPrnamt>698700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>698700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HESS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>42809H107</cusip>
    <value>873</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13063</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13063</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HESS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>42809H107</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>41500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>41500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HEXO CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>428304109</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HI CRUSH INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>428337109</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HILTON WORLDWIDE HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>43300A203</cusip>
    <value>2164</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19514</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19514</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HOME DEPOT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>437076102</cusip>
    <value>740</value>
    <shrsOrPrnAmt>
      <sshPrnamt>160400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>160400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HOME DEPOT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>437076102</cusip>
    <value>29098</value>
    <shrsOrPrnAmt>
      <sshPrnamt>133243</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>133243</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HOME DEPOT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>437076102</cusip>
    <value>322</value>
    <shrsOrPrnAmt>
      <sshPrnamt>97600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>97600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HONDA MOTOR LTD</nameOfIssuer>
    <titleOfClass>AMERN SHS</titleOfClass>
    <cusip>438128308</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HONEYWELL INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>438516106</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HORMEL FOODS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>440452100</cusip>
    <value>844</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18708</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18708</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HOWARD HUGHES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>44267D107</cusip>
    <value>30</value>
    <shrsOrPrnAmt>
      <sshPrnamt>94300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>94300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>40434L105</cusip>
    <value>622</value>
    <shrsOrPrnAmt>
      <sshPrnamt>628500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>628500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>40434L105</cusip>
    <value>393</value>
    <shrsOrPrnAmt>
      <sshPrnamt>620600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>620600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HSBC HLDGS PLC</nameOfIssuer>
    <titleOfClass>SPON ADR NEW</titleOfClass>
    <cusip>404280406</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HUMANA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>444859102</cusip>
    <value>25</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HUMANA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>444859102</cusip>
    <value>2442</value>
    <shrsOrPrnAmt>
      <sshPrnamt>84400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>84400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HUNTINGTON BANCSHARES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>446150104</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HUNTSMAN CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>447011107</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>HUYA INC</nameOfIssuer>
    <titleOfClass>ADS REP SHS A</titleOfClass>
    <cusip>44852D108</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IAMGOLD CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>450913108</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ICICI BK LTD</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>45104G104</cusip>
    <value>104</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>II VI INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>902104108</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IMMUNOGEN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45253H101</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IMMUNOMEDICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>452907108</cusip>
    <value>541</value>
    <shrsOrPrnAmt>
      <sshPrnamt>110700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>110700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IMPINJ INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>453204109</cusip>
    <value>493</value>
    <shrsOrPrnAmt>
      <sshPrnamt>119300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>119300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IMPINJ INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>453204109</cusip>
    <value>1828</value>
    <shrsOrPrnAmt>
      <sshPrnamt>70681</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>70681</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INCYTE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45337C102</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INFINERA CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45667G103</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INFINERA CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45667G103</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>69500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>69500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ING GROEP N V</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>456837103</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INGERSOLL-RAND PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G47791101</cusip>
    <value>621</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INSEEGO CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45782B104</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTEL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>458140100</cusip>
    <value>1136</value>
    <shrsOrPrnAmt>
      <sshPrnamt>193500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>193500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTEL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>458140100</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTELLIA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45826J105</cusip>
    <value>25</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTELSAT S A</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>L5140P101</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>247200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>247200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTELSAT S A</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>L5140P101</cusip>
    <value>76</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERCEPT PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45845P108</cusip>
    <value>359</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERCEPT PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45845P108</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>170200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>170200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERDIGITAL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>45867G101</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNAP CORP</nameOfIssuer>
    <titleOfClass>COM PAR</titleOfClass>
    <cusip>45885A409</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNATIONAL BUSINESS MACHS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>459200101</cusip>
    <value>148</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNATIONAL BUSINESS MACHS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>459200101</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>54200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>54200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNATIONAL FLAVORS&amp;FRAGRA</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>459506101</cusip>
    <value>58</value>
    <shrsOrPrnAmt>
      <sshPrnamt>285200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>285200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNATIONAL FLAVORS&amp;FRAGRA</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>459506101</cusip>
    <value>3423</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26528</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26528</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNATIONAL GAME TECHNOLOG</nameOfIssuer>
    <titleOfClass>SHS USD</titleOfClass>
    <cusip>G4863A108</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTERNATIONAL GAME TECHNOLOG</nameOfIssuer>
    <titleOfClass>SHS USD</titleOfClass>
    <cusip>G4863A108</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTL PAPER CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>460146103</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTRA CELLULAR THERAPIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46116X101</cusip>
    <value>12171</value>
    <shrsOrPrnAmt>
      <sshPrnamt>637100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>637100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTRA CELLULAR THERAPIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46116X101</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2559500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2559500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INTUITIVE SURGICAL INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>46120E602</cusip>
    <value>102</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO CURNCYSHS JAPANESE Y</nameOfIssuer>
    <titleOfClass>JAPANESE YEN</titleOfClass>
    <cusip>46138W107</cusip>
    <value>2136</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24435</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24435</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO CURNCYSHS JAPANESE Y</nameOfIssuer>
    <titleOfClass>JAPANESE YEN</titleOfClass>
    <cusip>46138W107</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO CURRENCYSHARES EURO</nameOfIssuer>
    <titleOfClass>EURO SHS</titleOfClass>
    <cusip>46138K103</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO EXCHNG TRADED FD TR</nameOfIssuer>
    <titleOfClass>S&amp;P500 HDL VOL</titleOfClass>
    <cusip>46138E362</cusip>
    <value>25</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO EXCHNG TRADED FD TR</nameOfIssuer>
    <titleOfClass>SR LN ETF</titleOfClass>
    <cusip>46138G508</cusip>
    <value>310</value>
    <shrsOrPrnAmt>
      <sshPrnamt>3432500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>3432500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO MORTGAGE CAPITAL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46131B100</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO QQQ TR</nameOfIssuer>
    <titleOfClass>UNIT SER 1</titleOfClass>
    <cusip>46090E103</cusip>
    <value>1383</value>
    <shrsOrPrnAmt>
      <sshPrnamt>127300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>127300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVESCO QQQ TR</nameOfIssuer>
    <titleOfClass>UNIT SER 1</titleOfClass>
    <cusip>46090E103</cusip>
    <value>92</value>
    <shrsOrPrnAmt>
      <sshPrnamt>91900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>91900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>INVITAE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46185L103</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IOVANCE BIOTHERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>462260100</cusip>
    <value>248</value>
    <shrsOrPrnAmt>
      <sshPrnamt>71500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>71500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IQIYI INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>46267X108</cusip>
    <value>97</value>
    <shrsOrPrnAmt>
      <sshPrnamt>148900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>148900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IQIYI INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>46267X108</cusip>
    <value>274</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12987</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12987</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IQIYI INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>46267X108</cusip>
    <value>116</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IQVIA HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46266C105</cusip>
    <value>1918</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1502100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1502100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IROBOT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>462726100</cusip>
    <value>42</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IRON MTN INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46284V101</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>IRON MTN INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46284V101</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES GOLD TRUST</nameOfIssuer>
    <titleOfClass>ISHARES</titleOfClass>
    <cusip>464285105</cusip>
    <value>476</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI AUSTRIA ETF</titleOfClass>
    <cusip>464286202</cusip>
    <value>214</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10303</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10303</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI BRAZIL ETF</titleOfClass>
    <cusip>464286400</cusip>
    <value>3830</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2032600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2032600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI BRAZIL ETF</titleOfClass>
    <cusip>464286400</cusip>
    <value>95</value>
    <shrsOrPrnAmt>
      <sshPrnamt>89600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>89600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI BRAZIL ETF</titleOfClass>
    <cusip>464286400</cusip>
    <value>71287</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1502370</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1502370</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI CDA ETF</titleOfClass>
    <cusip>464286509</cusip>
    <value>214</value>
    <shrsOrPrnAmt>
      <sshPrnamt>450300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>450300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI CDA ETF</titleOfClass>
    <cusip>464286509</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>400000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>400000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI CHILE ETF</titleOfClass>
    <cusip>464286640</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI STH KOR ETF</titleOfClass>
    <cusip>464286772</cusip>
    <value>690</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11103</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11103</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI STH KOR ETF</titleOfClass>
    <cusip>464286772</cusip>
    <value>98</value>
    <shrsOrPrnAmt>
      <sshPrnamt>91000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>91000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI STH KOR ETF</titleOfClass>
    <cusip>464286772</cusip>
    <value>148</value>
    <shrsOrPrnAmt>
      <sshPrnamt>249600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>249600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI GERMANY ETF</titleOfClass>
    <cusip>464286806</cusip>
    <value>1631</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55475</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55475</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI GERMANY ETF</titleOfClass>
    <cusip>464286806</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI MEXICO ETF</titleOfClass>
    <cusip>464286822</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI JPN ETF NEW</titleOfClass>
    <cusip>46434G822</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>104100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>104100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES INC</nameOfIssuer>
    <titleOfClass>MSCI ITALY ETF</titleOfClass>
    <cusip>46434G830</cusip>
    <value>1044</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35379</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35379</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES SILVER TRUST</nameOfIssuer>
    <titleOfClass>ISHARES</titleOfClass>
    <cusip>46428Q109</cusip>
    <value>204</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12201</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12201</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES SILVER TRUST</nameOfIssuer>
    <titleOfClass>ISHARES</titleOfClass>
    <cusip>46428Q109</cusip>
    <value>368</value>
    <shrsOrPrnAmt>
      <sshPrnamt>826300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>826300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES SILVER TRUST</nameOfIssuer>
    <titleOfClass>ISHARES</titleOfClass>
    <cusip>46428Q109</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>80800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>80800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>CHINA LG-CAP ETF</titleOfClass>
    <cusip>464287184</cusip>
    <value>390</value>
    <shrsOrPrnAmt>
      <sshPrnamt>282700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>282700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>CHINA LG-CAP ETF</titleOfClass>
    <cusip>464287184</cusip>
    <value>58</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>CHINA LG-CAP ETF</titleOfClass>
    <cusip>464287184</cusip>
    <value>963</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22080</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22080</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EMG MKT ETF</titleOfClass>
    <cusip>464287234</cusip>
    <value>89</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EMG MKT ETF</titleOfClass>
    <cusip>464287234</cusip>
    <value>248</value>
    <shrsOrPrnAmt>
      <sshPrnamt>680800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>680800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EMG MKT ETF</titleOfClass>
    <cusip>464287234</cusip>
    <value>24052</value>
    <shrsOrPrnAmt>
      <sshPrnamt>536047</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>536047</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>IBOXX INV CP ETF</titleOfClass>
    <cusip>464287242</cusip>
    <value>16545</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1002600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1002600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>IBOXX INV CP ETF</titleOfClass>
    <cusip>464287242</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>BARCLAYS 7 10 YR</titleOfClass>
    <cusip>464287440</cusip>
    <value>9170</value>
    <shrsOrPrnAmt>
      <sshPrnamt>83200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>83200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>BARCLAYS 7 10 YR</titleOfClass>
    <cusip>464287440</cusip>
    <value>505</value>
    <shrsOrPrnAmt>
      <sshPrnamt>544900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>544900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>1 3 YR TREAS BD</titleOfClass>
    <cusip>464287457</cusip>
    <value>1363</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>1 3 YR TREAS BD</titleOfClass>
    <cusip>464287457</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EAFE ETF</titleOfClass>
    <cusip>464287465</cusip>
    <value>566</value>
    <shrsOrPrnAmt>
      <sshPrnamt>223400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>223400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EAFE ETF</titleOfClass>
    <cusip>464287465</cusip>
    <value>263</value>
    <shrsOrPrnAmt>
      <sshPrnamt>379200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>379200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EAFE ETF</titleOfClass>
    <cusip>464287465</cusip>
    <value>5145</value>
    <shrsOrPrnAmt>
      <sshPrnamt>74090</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>74090</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>NASDAQ BIOTECH</titleOfClass>
    <cusip>464287556</cusip>
    <value>906</value>
    <shrsOrPrnAmt>
      <sshPrnamt>110900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>110900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>NASDAQ BIOTECH</titleOfClass>
    <cusip>464287556</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>RUSSELL 2000 ETF</titleOfClass>
    <cusip>464287655</cusip>
    <value>6173</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37258</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37258</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>RUSSELL 2000 ETF</titleOfClass>
    <cusip>464287655</cusip>
    <value>75</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>RUSSELL 2000 ETF</titleOfClass>
    <cusip>464287655</cusip>
    <value>37</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>U.S. REAL ES ETF</titleOfClass>
    <cusip>464287739</cusip>
    <value>2297</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24673</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24673</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>JPMORGAN USD EMG</titleOfClass>
    <cusip>464288281</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>JPMORGAN USD EMG</titleOfClass>
    <cusip>464288281</cusip>
    <value>4902</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42787</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42787</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>IBOXX HI YD ETF</titleOfClass>
    <cusip>464288513</cusip>
    <value>247</value>
    <shrsOrPrnAmt>
      <sshPrnamt>737200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>737200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>IBOXX HI YD ETF</titleOfClass>
    <cusip>464288513</cusip>
    <value>1658</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10266800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10266800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>PFD AND INCM SEC</titleOfClass>
    <cusip>464288687</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>216000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>216000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>US HOME CONS ETF</titleOfClass>
    <cusip>464288752</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI EURO FL ETF</titleOfClass>
    <cusip>464289180</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI INDIA ETF</titleOfClass>
    <cusip>46429B598</cusip>
    <value>52</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>MSCI UK ETF NEW</titleOfClass>
    <cusip>46435G334</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ITAU UNIBANCO HLDG SA</nameOfIssuer>
    <titleOfClass>SPON ADR REP PFD</titleOfClass>
    <cusip>465562106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JD COM INC</nameOfIssuer>
    <titleOfClass>SPON ADR CL A</titleOfClass>
    <cusip>47215P106</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JD COM INC</nameOfIssuer>
    <titleOfClass>SPON ADR CL A</titleOfClass>
    <cusip>47215P106</cusip>
    <value>386</value>
    <shrsOrPrnAmt>
      <sshPrnamt>219200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>219200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JINKOSOLAR HLDG CO LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>47759T100</cusip>
    <value>140</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JOHNSON &amp; JOHNSON</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>478160104</cusip>
    <value>176</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JOHNSON &amp; JOHNSON</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>478160104</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JOINT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>47973J102</cusip>
    <value>506</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31352</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31352</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JOINT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>47973J102</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>52500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>52500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JOINT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>47973J102</cusip>
    <value>66</value>
    <shrsOrPrnAmt>
      <sshPrnamt>52500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>52500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JPMORGAN CHASE &amp; CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46625H100</cusip>
    <value>1702</value>
    <shrsOrPrnAmt>
      <sshPrnamt>88800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>88800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JPMORGAN CHASE &amp; CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>46625H100</cusip>
    <value>86</value>
    <shrsOrPrnAmt>
      <sshPrnamt>105600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>105600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JPMORGAN CHASE &amp; CO</nameOfIssuer>
    <titleOfClass>ALERIAN ML ETN</titleOfClass>
    <cusip>46625H365</cusip>
    <value>631</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28929</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28929</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JPMORGAN CHASE &amp; CO</nameOfIssuer>
    <titleOfClass>ALERIAN ML ETN</titleOfClass>
    <cusip>46625H365</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JPMORGAN CHASE &amp; CO</nameOfIssuer>
    <titleOfClass>ALERIAN ML ETN</titleOfClass>
    <cusip>46625H365</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>130200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>130200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>JUMIA TECHNOLOGIES AG</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>48138M105</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KANDI TECHNOLOGIES GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>483709101</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KELLOGG CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>487836108</cusip>
    <value>2368</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34234</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34234</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KELLOGG CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>487836108</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>277000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>277000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KEMET CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>488360207</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KEYCORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>493267108</cusip>
    <value>179</value>
    <shrsOrPrnAmt>
      <sshPrnamt>139500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>139500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KINDER MORGAN INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>49456B101</cusip>
    <value>139</value>
    <shrsOrPrnAmt>
      <sshPrnamt>47500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>47500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KINDER MORGAN INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>49456B101</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KINDER MORGAN INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>49456B101</cusip>
    <value>580</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27413</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27413</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KINROSS GOLD CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>496902404</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KINROSS GOLD CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>496902404</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KIRKLAND LAKE GOLD LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>49741E100</cusip>
    <value>638</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14481</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14481</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KIRKLAND LAKE GOLD LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>49741E100</cusip>
    <value>39</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KKR &amp; CO INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>48251W104</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KNIGHT SWIFT TRANSN HLDGS IN</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>499049104</cusip>
    <value>2862</value>
    <shrsOrPrnAmt>
      <sshPrnamt>79844</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>79844</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KNIGHT SWIFT TRANSN HLDGS IN</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>499049104</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KODIAK SCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>50015M109</cusip>
    <value>218</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KOHLS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500255104</cusip>
    <value>731</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14340</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14340</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KOHLS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500255104</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>63400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>63400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KOHLS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500255104</cusip>
    <value>61</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KOSMOS ENERGY LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500688106</cusip>
    <value>3116</value>
    <shrsOrPrnAmt>
      <sshPrnamt>546753</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>546753</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KOSMOS ENERGY LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500688106</cusip>
    <value>578</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1650100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1650100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KRAFT HEINZ CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500754106</cusip>
    <value>644</value>
    <shrsOrPrnAmt>
      <sshPrnamt>234500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>234500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KRAFT HEINZ CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500754106</cusip>
    <value>396</value>
    <shrsOrPrnAmt>
      <sshPrnamt>195100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>195100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>KRAFT HEINZ CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>500754106</cusip>
    <value>1640</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51054</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51054</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KRANESHARES TR</nameOfIssuer>
    <titleOfClass>CSI CHI INTERNET</titleOfClass>
    <cusip>500767306</cusip>
    <value>263</value>
    <shrsOrPrnAmt>
      <sshPrnamt>137300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>137300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KRANESHARES TR</nameOfIssuer>
    <titleOfClass>CSI CHI INTERNET</titleOfClass>
    <cusip>500767306</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KROGER CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501044101</cusip>
    <value>1248</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43050</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43050</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KROGER CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501044101</cusip>
    <value>33</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>KROGER CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501044101</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>L BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501797104</cusip>
    <value>975</value>
    <shrsOrPrnAmt>
      <sshPrnamt>53826</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>53826</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>L BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501797104</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>L BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501797104</cusip>
    <value>79</value>
    <shrsOrPrnAmt>
      <sshPrnamt>87400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>87400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAM RESEARCH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>512807108</cusip>
    <value>275</value>
    <shrsOrPrnAmt>
      <sshPrnamt>6200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>6200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAM RESEARCH CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>512807108</cusip>
    <value>47</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LANDS END INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>51509F105</cusip>
    <value>84</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LANNET INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>516012101</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LANNET INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>516012101</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAREDO PETROLEUM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>516806106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAREDO PETROLEUM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>516806106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAS VEGAS SANDS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>517834107</cusip>
    <value>93</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAS VEGAS SANDS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>517834107</cusip>
    <value>9434</value>
    <shrsOrPrnAmt>
      <sshPrnamt>136650</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>136650</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAS VEGAS SANDS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>517834107</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAUDER ESTEE COS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>518439104</cusip>
    <value>3941</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19080</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19080</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LAUDER ESTEE COS INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>518439104</cusip>
    <value>452</value>
    <shrsOrPrnAmt>
      <sshPrnamt>262600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>262600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LEGGETT &amp; PLATT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>524660107</cusip>
    <value>609</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11987</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11987</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LENDINGCLUB CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>52603A208</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>129340</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>129340</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LENNAR CORP</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>526057104</cusip>
    <value>11905</value>
    <shrsOrPrnAmt>
      <sshPrnamt>213397</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>213397</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LENNOX INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>526107107</cusip>
    <value>129</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LEVI STRAUSS &amp; CO NEW</nameOfIssuer>
    <titleOfClass>CL A COM STK</titleOfClass>
    <cusip>52736R102</cusip>
    <value>310</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16071</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16071</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LEVI STRAUSS &amp; CO NEW</nameOfIssuer>
    <titleOfClass>CL A COM STK</titleOfClass>
    <cusip>52736R102</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LEXICON PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>528872302</cusip>
    <value>30</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LIBERTY GLOBAL PLC</nameOfIssuer>
    <titleOfClass>SHS CL A</titleOfClass>
    <cusip>G5480U104</cusip>
    <value>665</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29225</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29225</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LIBERTY GLOBAL PLC</nameOfIssuer>
    <titleOfClass>SHS CL A</titleOfClass>
    <cusip>G5480U104</cusip>
    <value>85</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LIBERTY GLOBAL PLC</nameOfIssuer>
    <titleOfClass>SHS CL A</titleOfClass>
    <cusip>G5480U104</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LIBERTY GLOBAL PLC</nameOfIssuer>
    <titleOfClass>SHS CL C</titleOfClass>
    <cusip>G5480U120</cusip>
    <value>14155</value>
    <shrsOrPrnAmt>
      <sshPrnamt>649447</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>649447</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LIBERTY GLOBAL PLC</nameOfIssuer>
    <titleOfClass>SHS CL C</titleOfClass>
    <cusip>G5480U120</cusip>
    <value>2728</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2733500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2733500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LIBERTY GLOBAL PLC</nameOfIssuer>
    <titleOfClass>SHS CL C</titleOfClass>
    <cusip>G5480U120</cusip>
    <value>2038</value>
    <shrsOrPrnAmt>
      <sshPrnamt>949800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>949800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LINCOLN NATL CORP IND</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>534187109</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>45500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>45500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LKQ CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>501889208</cusip>
    <value>660</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18489</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18489</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LLOYDS BANKING GROUP PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>539439109</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LLOYDS BANKING GROUP PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>539439109</cusip>
    <value>655</value>
    <shrsOrPrnAmt>
      <sshPrnamt>197766</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>197766</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>LOGMEIN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>54142L109</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LOWES COS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>548661107</cusip>
    <value>89</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LOWES COS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>548661107</cusip>
    <value>5531</value>
    <shrsOrPrnAmt>
      <sshPrnamt>46185</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>46185</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LUCKIN COFFEE INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>54951L109</cusip>
    <value>682</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17316</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17316</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LUCKIN COFFEE INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>54951L109</cusip>
    <value>2975</value>
    <shrsOrPrnAmt>
      <sshPrnamt>282100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>282100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LUCKIN COFFEE INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>54951L109</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LULULEMON ATHLETICA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>550021109</cusip>
    <value>2580</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11135</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11135</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LULULEMON ATHLETICA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>550021109</cusip>
    <value>152</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LULULEMON ATHLETICA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>550021109</cusip>
    <value>57</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LUMBER LIQUIDATORS HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>55003T107</cusip>
    <value>26</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LYFT INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>55087P104</cusip>
    <value>125</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LYFT INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>55087P104</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LYONDELLBASELL INDUSTRIES N</nameOfIssuer>
    <titleOfClass>SHS - A -</titleOfClass>
    <cusip>N53745100</cusip>
    <value>6697</value>
    <shrsOrPrnAmt>
      <sshPrnamt>70885</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>70885</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>LYONDELLBASELL INDUSTRIES N</nameOfIssuer>
    <titleOfClass>SHS - A -</titleOfClass>
    <cusip>N53745100</cusip>
    <value>104</value>
    <shrsOrPrnAmt>
      <sshPrnamt>113800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>113800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>M D C HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>552676108</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MACERICH CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>554382101</cusip>
    <value>36</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MACYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>55616P104</cusip>
    <value>32</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MACYS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>55616P104</cusip>
    <value>173</value>
    <shrsOrPrnAmt>
      <sshPrnamt>73000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>73000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MADISON SQUARE GARDEN CO NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>55825T103</cusip>
    <value>516</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MADISON SQUARE GARDEN CO NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>55825T103</cusip>
    <value>110</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MALLINCKRODT PUB LTD CO</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G5785G107</cusip>
    <value>359</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MALLINCKRODT PUB LTD CO</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G5785G107</cusip>
    <value>41</value>
    <shrsOrPrnAmt>
      <sshPrnamt>78200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>78200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MANNKIND CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>56400P706</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARATHON OIL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>565849106</cusip>
    <value>643</value>
    <shrsOrPrnAmt>
      <sshPrnamt>47347</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>47347</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARATHON OIL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>565849106</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARATHON OIL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>565849106</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARATHON PETE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>56585A102</cusip>
    <value>1497</value>
    <shrsOrPrnAmt>
      <sshPrnamt>413300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>413300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARATHON PETE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>56585A102</cusip>
    <value>20393</value>
    <shrsOrPrnAmt>
      <sshPrnamt>338478</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>338478</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARATHON PETE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>56585A102</cusip>
    <value>829</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1009300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1009300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARKER THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>57055L107</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARRIOTT INTL INC NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>571903202</cusip>
    <value>23644</value>
    <shrsOrPrnAmt>
      <sshPrnamt>156136</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>156136</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARRIOTT INTL INC NEW</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>571903202</cusip>
    <value>1143</value>
    <shrsOrPrnAmt>
      <sshPrnamt>355000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>355000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARVELL TECHNOLOGY GROUP LTD</nameOfIssuer>
    <titleOfClass>ORD</titleOfClass>
    <cusip>G5876H105</cusip>
    <value>1288</value>
    <shrsOrPrnAmt>
      <sshPrnamt>48483</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>48483</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MARVELL TECHNOLOGY GROUP LTD</nameOfIssuer>
    <titleOfClass>ORD</titleOfClass>
    <cusip>G5876H105</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MASTERCARD INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>57636Q104</cusip>
    <value>1540</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MASTERCARD INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>57636Q104</cusip>
    <value>111</value>
    <shrsOrPrnAmt>
      <sshPrnamt>49900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>49900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MATCH GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>57665R106</cusip>
    <value>150</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MATTEL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>577081102</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MAXAR TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>57778K105</cusip>
    <value>37</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCDERMOTT INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>580037703</cusip>
    <value>731</value>
    <shrsOrPrnAmt>
      <sshPrnamt>551800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>551800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCDERMOTT INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>580037703</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1082700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1082700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCDONALDS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>580135101</cusip>
    <value>3978</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20130</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20130</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCDONALDS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>580135101</cusip>
    <value>176</value>
    <shrsOrPrnAmt>
      <sshPrnamt>105000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>105000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCDONALDS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>580135101</cusip>
    <value>74</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCEWEN MNG INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>58039P107</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MCEWEN MNG INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>58039P107</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MEDICINES CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>584688105</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>91100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>91100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MEDICINES CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>584688105</cusip>
    <value>16633</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1034300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1034300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MEDICINES CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>584688105</cusip>
    <value>4778</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56257</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56257</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MEET GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>58513U101</cusip>
    <value>204</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MELCO RESORTS AND ENTMT LTD</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>585464100</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MELINTA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>58549G209</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MELLANOX TECHNOLOGIES LTD</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>M51363113</cusip>
    <value>403</value>
    <shrsOrPrnAmt>
      <sshPrnamt>355000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>355000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MELLANOX TECHNOLOGIES LTD</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>M51363113</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MERCADOLIBRE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>58733R102</cusip>
    <value>46</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MERCK &amp; CO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>58933Y105</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MERCK &amp; CO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>58933Y105</cusip>
    <value>738</value>
    <shrsOrPrnAmt>
      <sshPrnamt>147000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>147000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>METLIFE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>59156R108</cusip>
    <value>67</value>
    <shrsOrPrnAmt>
      <sshPrnamt>289400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>289400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>METLIFE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>59156R108</cusip>
    <value>970</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19035</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19035</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>METLIFE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>59156R108</cusip>
    <value>464</value>
    <shrsOrPrnAmt>
      <sshPrnamt>118500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>118500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MGIC INVT CORP WIS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>552848103</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MGM RESORTS INTERNATIONAL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>552953101</cusip>
    <value>1193</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35863</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35863</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MGM RESORTS INTERNATIONAL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>552953101</cusip>
    <value>87</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MGM RESORTS INTERNATIONAL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>552953101</cusip>
    <value>28</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICHAELS COS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>59408Q106</cusip>
    <value>26</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICROCHIP TECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>595017104</cusip>
    <value>49</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICROCHIP TECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>595017104</cusip>
    <value>379</value>
    <shrsOrPrnAmt>
      <sshPrnamt>130900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>130900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICROCHIP TECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>595017104</cusip>
    <value>1805</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17237</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17237</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICRON TECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>595112103</cusip>
    <value>1080</value>
    <shrsOrPrnAmt>
      <sshPrnamt>437800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>437800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICRON TECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>595112103</cusip>
    <value>232</value>
    <shrsOrPrnAmt>
      <sshPrnamt>385900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>385900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICROSOFT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>594918104</cusip>
    <value>2122</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13453</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13453</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICROSOFT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>594918104</cusip>
    <value>1816</value>
    <shrsOrPrnAmt>
      <sshPrnamt>246200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>246200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MICROSOFT CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>594918104</cusip>
    <value>264</value>
    <shrsOrPrnAmt>
      <sshPrnamt>159900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>159900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MIRATI THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>60468T105</cusip>
    <value>4530</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35152</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35152</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MIRATI THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>60468T105</cusip>
    <value>160</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MOBILE TELESYSTEMS PJSC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>607409109</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MODEL N INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>607525102</cusip>
    <value>505</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14411</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14411</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MOLINA HEALTHCARE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>60855R100</cusip>
    <value>106</value>
    <shrsOrPrnAmt>
      <sshPrnamt>90100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>90100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MOMO INC</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>60879B107</cusip>
    <value>49</value>
    <shrsOrPrnAmt>
      <sshPrnamt>77100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>77100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MONDELEZ INTL INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>609207105</cusip>
    <value>75</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MONDELEZ INTL INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>609207105</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MORGAN STANLEY</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>617446448</cusip>
    <value>1284</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25127</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25127</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MORGAN STANLEY</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>617446448</cusip>
    <value>167</value>
    <shrsOrPrnAmt>
      <sshPrnamt>59700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>59700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MORGAN STANLEY</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>617446448</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>74100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>74100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MOSAIC CO NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>61945C103</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>33700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>33700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MOSAIC CO NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>61945C103</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MOSAIC CO NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>61945C103</cusip>
    <value>711</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32868</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32868</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MPLX LP</nameOfIssuer>
    <titleOfClass>COM UNIT REP LTD</titleOfClass>
    <cusip>55336V100</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>MPLX LP</nameOfIssuer>
    <titleOfClass>COM UNIT REP LTD</titleOfClass>
    <cusip>55336V100</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NABORS INDUSTRIES LTD</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G6359F103</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEKTAR THERAPEUTICS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>640268108</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEKTAR THERAPEUTICS</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>640268108</cusip>
    <value>62</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEPTUNE WELLNESS SOLUTIONS I</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>64079L105</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NETEASE INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>64110W102</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NETFLIX INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>64110L106</cusip>
    <value>1060</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NETFLIX INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>64110L106</cusip>
    <value>869</value>
    <shrsOrPrnAmt>
      <sshPrnamt>291700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>291700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW AGE BEVERAGES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>64157V108</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW GOLD INC CDA</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>644535106</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW MTN FIN CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>647551100</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW RESIDENTIAL INVT CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>64828T201</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW RESIDENTIAL INVT CORP</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>64828T201</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW YORK MTG TR INC</nameOfIssuer>
    <titleOfClass>COM PAR $.02</titleOfClass>
    <cusip>649604501</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEW YORK TIMES CO</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>650111107</cusip>
    <value>57</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWELL BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651229106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWELL BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651229106</cusip>
    <value>135</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWELL BRANDS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651229106</cusip>
    <value>1004</value>
    <shrsOrPrnAmt>
      <sshPrnamt>52216</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>52216</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWLINK GENETICS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651511107</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWMONT GOLDCORP CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651639106</cusip>
    <value>1151</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWMONT GOLDCORP CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651639106</cusip>
    <value>75</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23656</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23656</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEWMONT GOLDCORP CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>651639106</cusip>
    <value>23</value>
    <shrsOrPrnAmt>
      <sshPrnamt>55856</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>55856</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEXSTAR MEDIA GROUP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>65336K103</cusip>
    <value>19051</value>
    <shrsOrPrnAmt>
      <sshPrnamt>162479</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>162479</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEXSTAR MEDIA GROUP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>65336K103</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEXTERA ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>65339F101</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NEXTERA ENERGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>65339F101</cusip>
    <value>150</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NGL ENERGY PARTNERS LP</nameOfIssuer>
    <titleOfClass>COM UNIT REPST</titleOfClass>
    <cusip>62913M107</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NIKE INC</nameOfIssuer>
    <titleOfClass>CL B</titleOfClass>
    <cusip>654106103</cusip>
    <value>219</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NIKE INC</nameOfIssuer>
    <titleOfClass>CL B</titleOfClass>
    <cusip>654106103</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NIKE INC</nameOfIssuer>
    <titleOfClass>CL B</titleOfClass>
    <cusip>654106103</cusip>
    <value>9241</value>
    <shrsOrPrnAmt>
      <sshPrnamt>91216</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>91216</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NIO INC</nameOfIssuer>
    <titleOfClass>SPON ADS</titleOfClass>
    <cusip>62914V106</cusip>
    <value>397</value>
    <shrsOrPrnAmt>
      <sshPrnamt>359000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>359000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NIO INC</nameOfIssuer>
    <titleOfClass>SPON ADS</titleOfClass>
    <cusip>62914V106</cusip>
    <value>117</value>
    <shrsOrPrnAmt>
      <sshPrnamt>205200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>205200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOKIA CORP</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>654902204</cusip>
    <value>922</value>
    <shrsOrPrnAmt>
      <sshPrnamt>248429</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>248429</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOKIA CORP</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>654902204</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOKIA CORP</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>654902204</cusip>
    <value>66</value>
    <shrsOrPrnAmt>
      <sshPrnamt>84200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>84200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOMAD FOODS LTD</nameOfIssuer>
    <titleOfClass>USD ORD SHS</titleOfClass>
    <cusip>G6564A105</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORDIC AMERICAN TANKERS LIMI</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G65773106</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>90800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>90800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORDIC AMERICAN TANKERS LIMI</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>G65773106</cusip>
    <value>87</value>
    <shrsOrPrnAmt>
      <sshPrnamt>67800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>67800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORDSTROM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>655664100</cusip>
    <value>71</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORTHERN DYNASTY MINERALS LT</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>66510M204</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORTHERN DYNASTY MINERALS LT</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>66510M204</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORTHERN OIL &amp; GAS INC NEV</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>665531109</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>36700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>36700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORTONLIFELOCK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>668771108</cusip>
    <value>2151</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2692900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2692900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORTONLIFELOCK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>668771108</cusip>
    <value>28617</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1121337</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1121337</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORTONLIFELOCK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>668771108</cusip>
    <value>1900</value>
    <shrsOrPrnAmt>
      <sshPrnamt>857800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>857800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NORWEGIAN CRUISE LINE HLDG L</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G66721104</cusip>
    <value>942</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16133</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16133</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOVAGOLD RES INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>66987E206</cusip>
    <value>81</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOVARTIS A G</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>66987V109</cusip>
    <value>94</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOVAVAX INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>670002401</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34005</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34005</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NOVOCURE LTD</nameOfIssuer>
    <titleOfClass>ORD SHS</titleOfClass>
    <cusip>G6674U108</cusip>
    <value>131</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NRG ENERGY INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>629377508</cusip>
    <value>68</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUANCE COMMUNICATIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67020Y100</cusip>
    <value>5757</value>
    <shrsOrPrnAmt>
      <sshPrnamt>322884</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>322884</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUANCE COMMUNICATIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67020Y100</cusip>
    <value>73</value>
    <shrsOrPrnAmt>
      <sshPrnamt>68700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>68700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUANCE COMMUNICATIONS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67020Y100</cusip>
    <value>238</value>
    <shrsOrPrnAmt>
      <sshPrnamt>251300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>251300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUCOR CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>670346105</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUSTAR ENERGY LP</nameOfIssuer>
    <titleOfClass>UNIT COM</titleOfClass>
    <cusip>67058H102</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUTANIX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>67059N108</cusip>
    <value>50</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUTANIX INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>67059N108</cusip>
    <value>38</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NUTRIEN LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67077M108</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NVIDIA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67066G104</cusip>
    <value>5058</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21496</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21496</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NVIDIA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67066G104</cusip>
    <value>1438</value>
    <shrsOrPrnAmt>
      <sshPrnamt>47300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>47300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NVIDIA CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67066G104</cusip>
    <value>559</value>
    <shrsOrPrnAmt>
      <sshPrnamt>88100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>88100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NXP SEMICONDUCTORS N V</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>N6596X109</cusip>
    <value>348</value>
    <shrsOrPrnAmt>
      <sshPrnamt>69700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>69700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NXP SEMICONDUCTORS N V</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>N6596X109</cusip>
    <value>177</value>
    <shrsOrPrnAmt>
      <sshPrnamt>212000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>212000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>NXP SEMICONDUCTORS N V</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>N6596X109</cusip>
    <value>5549</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43602</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43602</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>OASIS PETE INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>674215108</cusip>
    <value>302</value>
    <shrsOrPrnAmt>
      <sshPrnamt>636700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>636700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OCCIDENTAL PETE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>674599105</cusip>
    <value>11461</value>
    <shrsOrPrnAmt>
      <sshPrnamt>278114</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>278114</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OCCIDENTAL PETE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>674599105</cusip>
    <value>43</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43377</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43377</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OCCIDENTAL PETE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>674599105</cusip>
    <value>542</value>
    <shrsOrPrnAmt>
      <sshPrnamt>466268</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>466268</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OFFICE DEPOT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>676220106</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>508100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>508100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>O-I GLASS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>67098H104</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OMEROS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>682143102</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OMNICOM GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>681919106</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>60100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>60100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ON SEMICONDUCTOR CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>682189105</cusip>
    <value>7708</value>
    <shrsOrPrnAmt>
      <sshPrnamt>316167</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>316167</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ON SEMICONDUCTOR CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>682189105</cusip>
    <value>2725</value>
    <shrsOrPrnAmt>
      <sshPrnamt>755000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>755000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ONEOK INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>682680103</cusip>
    <value>7179</value>
    <shrsOrPrnAmt>
      <sshPrnamt>94875</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>94875</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>ONEOK INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>682680103</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ONEOK INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>682680103</cusip>
    <value>74</value>
    <shrsOrPrnAmt>
      <sshPrnamt>118300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>118300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OPKO HEALTH INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68375N103</cusip>
    <value>1671</value>
    <shrsOrPrnAmt>
      <sshPrnamt>470800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>470800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ORACLE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68389X105</cusip>
    <value>77</value>
    <shrsOrPrnAmt>
      <sshPrnamt>33800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>33800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ORACLE CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68389X105</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ORCHID IS CAP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68571X103</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OSISKO GOLD ROYALTIES LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68827L101</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OSISKO GOLD ROYALTIES LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>68827L101</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OVERSTOCK COM INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>690370101</cusip>
    <value>286</value>
    <shrsOrPrnAmt>
      <sshPrnamt>734300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>734300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>OVERSTOCK COM INC DEL</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>690370101</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>125600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>125600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PACIFIC ETHANOL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69423U305</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PALO ALTO NETWORKS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>697435105</cusip>
    <value>109</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAN AMERICAN SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>697900108</cusip>
    <value>2478</value>
    <shrsOrPrnAmt>
      <sshPrnamt>104619</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>104619</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAN AMERICAN SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>697900108</cusip>
    <value>285</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAN AMERICAN SILVER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>697900108</cusip>
    <value>47</value>
    <shrsOrPrnAmt>
      <sshPrnamt>63960</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>63960</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAPA JOHNS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>698813102</cusip>
    <value>191</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAPA JOHNS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>698813102</cusip>
    <value>82</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAYCHEX INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>704326107</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAYCHEX INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>704326107</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>167800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>167800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAYPAL HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>70450Y103</cusip>
    <value>332</value>
    <shrsOrPrnAmt>
      <sshPrnamt>57900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>57900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PAYPAL HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>70450Y103</cusip>
    <value>176</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PEABODY ENERGY CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>704551100</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PELOTON INTERACTIVE INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>70614W100</cusip>
    <value>111</value>
    <shrsOrPrnAmt>
      <sshPrnamt>74900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>74900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PELOTON INTERACTIVE INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>70614W100</cusip>
    <value>103</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PENN VA CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>70788V102</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>260000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>260000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PENNEY J C CORP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>708160106</cusip>
    <value>344</value>
    <shrsOrPrnAmt>
      <sshPrnamt>307116</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>307116</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PENNEY J C CORP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>708160106</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>46400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>46400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PENNEY J C CORP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>708160106</cusip>
    <value>64</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1084700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1084700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>PENNSYLVANIA RL ESTATE INVT</nameOfIssuer>
    <titleOfClass>SH BEN INT</titleOfClass>
    <cusip>709102107</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PEPSICO INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>713448108</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PETMED EXPRESS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>716382106</cusip>
    <value>59</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PETROLEO BRASILEIRO SA PETRO</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>71654V408</cusip>
    <value>378</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23714</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23714</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PETROLEO BRASILEIRO SA PETRO</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>71654V408</cusip>
    <value>36</value>
    <shrsOrPrnAmt>
      <sshPrnamt>67400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>67400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>PETROLEO BRASILEIRO SA PETRO</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>71654V408</cusip>
    <value>50</value>
    <shrsOrPrnAmt>
      <sshPrnamt>194800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>194800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PFIZER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>717081103</cusip>
    <value>263</value>
    <shrsOrPrnAmt>
      <sshPrnamt>317900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>317900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PFIZER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>717081103</cusip>
    <value>79</value>
    <shrsOrPrnAmt>
      <sshPrnamt>70800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>70800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PG&amp;E CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69331C108</cusip>
    <value>8410</value>
    <shrsOrPrnAmt>
      <sshPrnamt>2794500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>2794500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PG&amp;E CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69331C108</cusip>
    <value>4377</value>
    <shrsOrPrnAmt>
      <sshPrnamt>8325500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>8325500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PHILIP MORRIS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>718172109</cusip>
    <value>944</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11090</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11090</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PHILIP MORRIS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>718172109</cusip>
    <value>105</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PHILIP MORRIS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>718172109</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PINDUODUO INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>722304102</cusip>
    <value>56</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PINDUODUO INC</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>722304102</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>207100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>207100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PINTEREST INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>72352L106</cusip>
    <value>90</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PIONEER NAT RES CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>723787107</cusip>
    <value>19343</value>
    <shrsOrPrnAmt>
      <sshPrnamt>127787</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>127787</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PIONEER NAT RES CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>723787107</cusip>
    <value>1212</value>
    <shrsOrPrnAmt>
      <sshPrnamt>200800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>200800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PLAINS ALL AMERN PIPELINE L</nameOfIssuer>
    <titleOfClass>UNIT LTD PARTN</titleOfClass>
    <cusip>726503105</cusip>
    <value>69</value>
    <shrsOrPrnAmt>
      <sshPrnamt>93400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>93400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PLAINS GP HLDGS L P</nameOfIssuer>
    <titleOfClass>LTD PARTNR INT A</titleOfClass>
    <cusip>72651A207</cusip>
    <value>96</value>
    <shrsOrPrnAmt>
      <sshPrnamt>85400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>85400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PLUG POWER INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>72919P202</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>67700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>67700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PLUG POWER INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>72919P202</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>66600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>66600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PLURALSIGHT INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>72941B106</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PLURALSIGHT INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>72941B106</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>POLARITYTE INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>731094108</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>POTBELLY CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>73754Y100</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PPL CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69351T106</cusip>
    <value>48</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PRETIUM RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74139C102</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PRETIUM RES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74139C102</cusip>
    <value>150</value>
    <shrsOrPrnAmt>
      <sshPrnamt>138700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>138700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROCTER &amp; GAMBLE CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>742718109</cusip>
    <value>2925</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23415</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23415</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROCTER &amp; GAMBLE CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>742718109</cusip>
    <value>151</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROCTER &amp; GAMBLE CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>742718109</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>30500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>30500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROGENICS PHARMACEUTICALS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>743187106</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROGRESSIVE CORP OHIO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>743315103</cusip>
    <value>52</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR</nameOfIssuer>
    <titleOfClass>ULTRAPRO SHORT S</titleOfClass>
    <cusip>74347B268</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR</nameOfIssuer>
    <titleOfClass>ULTRASHRT S&amp;P500</titleOfClass>
    <cusip>74347B383</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR</nameOfIssuer>
    <titleOfClass>ULTRAPRO SHT QQQ</titleOfClass>
    <cusip>74347G408</cusip>
    <value>19</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28275</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28275</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR</nameOfIssuer>
    <titleOfClass>ULTRAPRO SHT QQQ</titleOfClass>
    <cusip>74347G408</cusip>
    <value>86</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21875</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21875</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR</nameOfIssuer>
    <titleOfClass>PSHS ULTRA QQQ</titleOfClass>
    <cusip>74347R206</cusip>
    <value>218</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR</nameOfIssuer>
    <titleOfClass>PSHS ULTRA QQQ</titleOfClass>
    <cusip>74347R206</cusip>
    <value>70</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR II</nameOfIssuer>
    <titleOfClass>SHT VIX ST TRM</titleOfClass>
    <cusip>74347W130</cusip>
    <value>3733</value>
    <shrsOrPrnAmt>
      <sshPrnamt>257900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>257900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR II</nameOfIssuer>
    <titleOfClass>SHT VIX ST TRM</titleOfClass>
    <cusip>74347W130</cusip>
    <value>599</value>
    <shrsOrPrnAmt>
      <sshPrnamt>192500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>192500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR II</nameOfIssuer>
    <titleOfClass>ULTRA SILVER NEW</titleOfClass>
    <cusip>74347W353</cusip>
    <value>74</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSHARES TR II</nameOfIssuer>
    <titleOfClass>ULSHT BLOOMB OIL</titleOfClass>
    <cusip>74347W668</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSPECT CAPITAL CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74348T102</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROSPECT CAPITAL CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74348T102</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROTEOSTASIS THERAPEUTICS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74373B109</cusip>
    <value>18</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PROTEOSTASIS THERAPEUTICS IN</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74373B109</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PRUDENTIAL FINL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>744320102</cusip>
    <value>43</value>
    <shrsOrPrnAmt>
      <sshPrnamt>164500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>164500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PRUDENTIAL PLC</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>74435K204</cusip>
    <value>230</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PTC THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69366J200</cusip>
    <value>35</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PTC THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>69366J200</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PULTE GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>745867101</cusip>
    <value>904</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PULTE GROUP INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>745867101</cusip>
    <value>25</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PUMA BIOTECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74587V107</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PUMA BIOTECHNOLOGY INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74587V107</cusip>
    <value>99</value>
    <shrsOrPrnAmt>
      <sshPrnamt>51600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>51600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>PYXUS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74737V106</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QIAGEN NV</nameOfIssuer>
    <titleOfClass>SHS NEW</titleOfClass>
    <cusip>N72482123</cusip>
    <value>93</value>
    <shrsOrPrnAmt>
      <sshPrnamt>81700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>81700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QUALCOMM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>747525103</cusip>
    <value>29476</value>
    <shrsOrPrnAmt>
      <sshPrnamt>334078</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>334078</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QUALCOMM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>747525103</cusip>
    <value>958</value>
    <shrsOrPrnAmt>
      <sshPrnamt>418600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>418600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QUALCOMM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>747525103</cusip>
    <value>81</value>
    <shrsOrPrnAmt>
      <sshPrnamt>93900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>93900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QUANTA SVCS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74762E102</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>119300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>119300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QUDIAN INC</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>747798106</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>QUDIAN INC</nameOfIssuer>
    <titleOfClass>ADR</titleOfClass>
    <cusip>747798106</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RADWARE LTD</nameOfIssuer>
    <titleOfClass>ORD</titleOfClass>
    <cusip>M81873107</cusip>
    <value>557</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21625</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21625</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RADWARE LTD</nameOfIssuer>
    <titleOfClass>ORD</titleOfClass>
    <cusip>M81873107</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RANGE RES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75281A109</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RANGE RES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75281A109</cusip>
    <value>82</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RAYTHEON CO</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>755111507</cusip>
    <value>13135</value>
    <shrsOrPrnAmt>
      <sshPrnamt>59774</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>59774</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RAYTHEON CO</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>755111507</cusip>
    <value>606</value>
    <shrsOrPrnAmt>
      <sshPrnamt>115000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>115000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RAYTHEON CO</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>755111507</cusip>
    <value>21</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REALOGY HLDGS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75605Y106</cusip>
    <value>853</value>
    <shrsOrPrnAmt>
      <sshPrnamt>165800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>165800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REALOGY HLDGS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75605Y106</cusip>
    <value>280</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28913</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28913</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REALOGY HLDGS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75605Y106</cusip>
    <value>20</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REALTY INCOME CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>756109104</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REDFIN CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>75737F108</cusip>
    <value>60</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REDWOOD TR INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>758075402</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>160000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>160000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RESIDEO TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>76118Y104</cusip>
    <value>361</value>
    <shrsOrPrnAmt>
      <sshPrnamt>450500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>450500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RESTAURANT BRANDS INTL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>76131D103</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REVANCE THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>761330109</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REVOLVE GROUP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>76156B107</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>25700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>25700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>REVOLVE GROUP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>76156B107</cusip>
    <value>27</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RH</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74967X103</cusip>
    <value>1451</value>
    <shrsOrPrnAmt>
      <sshPrnamt>105700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>105700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RH</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>74967X103</cusip>
    <value>5436</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RIGEL PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>766559603</cusip>
    <value>212</value>
    <shrsOrPrnAmt>
      <sshPrnamt>98934</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>98934</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RINGCENTRAL INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>76680R206</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RIO TINTO PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>767204100</cusip>
    <value>53</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RIO TINTO PLC</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>767204100</cusip>
    <value>8</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RIOT BLOCKCHAIN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>767292105</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ROKU INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>77543R102</cusip>
    <value>1241</value>
    <shrsOrPrnAmt>
      <sshPrnamt>42000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>42000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ROKU INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>77543R102</cusip>
    <value>288</value>
    <shrsOrPrnAmt>
      <sshPrnamt>61200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>61200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ROSS STORES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>778296103</cusip>
    <value>4141</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35572</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35572</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ROSS STORES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>778296103</cusip>
    <value>52</value>
    <shrsOrPrnAmt>
      <sshPrnamt>28400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>28400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ROYAL BK CDA MONTREAL QUE</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>780087102</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>ROYAL GOLD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>780287108</cusip>
    <value>466</value>
    <shrsOrPrnAmt>
      <sshPrnamt>43000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>43000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>RUBICON PROJ INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78112V102</cusip>
    <value>71</value>
    <shrsOrPrnAmt>
      <sshPrnamt>85300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>85300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>S&amp;P GLOBAL INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78409V104</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>50100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>50100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SAGE THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78667J108</cusip>
    <value>77</value>
    <shrsOrPrnAmt>
      <sshPrnamt>140500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>140500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SAGE THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78667J108</cusip>
    <value>711</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SAILPOINT TECHNLGIES HLDGS I</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>78781P105</cusip>
    <value>30</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SALESFORCE COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>79466L302</cusip>
    <value>202</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101720</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101720</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SALESFORCE COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>79466L302</cusip>
    <value>2272</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13967</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13967</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SALESFORCE COM INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>79466L302</cusip>
    <value>381</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29240</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29240</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SANDSTORM GOLD LTD</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>80013R206</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>45300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>45300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SANDSTORM GOLD LTD</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>80013R206</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SANDSTORM GOLD LTD</nameOfIssuer>
    <titleOfClass>COM NEW</titleOfClass>
    <cusip>80013R206</cusip>
    <value>362</value>
    <shrsOrPrnAmt>
      <sshPrnamt>48623</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>48623</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SANGAMO THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>800677106</cusip>
    <value>31</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SANOFI</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>80105N105</cusip>
    <value>43</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SAREPTA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>803607100</cusip>
    <value>1529</value>
    <shrsOrPrnAmt>
      <sshPrnamt>140800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>140800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SAREPTA THERAPEUTICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>803607100</cusip>
    <value>54</value>
    <shrsOrPrnAmt>
      <sshPrnamt>22500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>22500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SAVARA INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>805111101</cusip>
    <value>13</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SCHLUMBERGER LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>806857108</cusip>
    <value>41</value>
    <shrsOrPrnAmt>
      <sshPrnamt>34300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>34300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SCHLUMBERGER LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>806857108</cusip>
    <value>224</value>
    <shrsOrPrnAmt>
      <sshPrnamt>132000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>132000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SCHLUMBERGER LTD</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>806857108</cusip>
    <value>4079</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101480</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101480</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SCHWAB STRATEGIC TR</nameOfIssuer>
    <titleOfClass>US REIT ETF</titleOfClass>
    <cusip>808524847</cusip>
    <value>2832</value>
    <shrsOrPrnAmt>
      <sshPrnamt>61618</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>61618</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SCIENTIFIC GAMES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>80874P109</cusip>
    <value>2615</value>
    <shrsOrPrnAmt>
      <sshPrnamt>97651</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>97651</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SCIENTIFIC GAMES CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>80874P109</cusip>
    <value>508</value>
    <shrsOrPrnAmt>
      <sshPrnamt>386400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>386400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEA LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>81141R100</cusip>
    <value>1480</value>
    <shrsOrPrnAmt>
      <sshPrnamt>254100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>254100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEA LTD</nameOfIssuer>
    <titleOfClass>SPONSORED ADS</titleOfClass>
    <cusip>81141R100</cusip>
    <value>146</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1903700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1903700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEABRIDGE GOLD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>811916105</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>24800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>24800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEAGATE TECHNOLOGY PLC</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G7945M107</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEASPAN CORP</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>Y75638109</cusip>
    <value>302</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21285</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21285</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEATTLE GENETICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>812578102</cusip>
    <value>38</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEAWORLD ENTMT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>81282V100</cusip>
    <value>2934</value>
    <shrsOrPrnAmt>
      <sshPrnamt>92514</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>92514</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEAWORLD ENTMT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>81282V100</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>305400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>305400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SEAWORLD ENTMT INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>81282V100</cusip>
    <value>0</value>
    <shrsOrPrnAmt>
      <sshPrnamt>218500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>218500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SENIOR HSG PPTYS TR</nameOfIssuer>
    <titleOfClass>SH BEN INT</titleOfClass>
    <cusip>81721M109</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SERVICE PPTYS TR</nameOfIssuer>
    <titleOfClass>COM SH BEN INT</titleOfClass>
    <cusip>81761L102</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SERVICENOW INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>81762P102</cusip>
    <value>368</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SHAKE SHACK INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>819047101</cusip>
    <value>74</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SHOPIFY INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>82509L107</cusip>
    <value>812</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SHOPIFY INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>82509L107</cusip>
    <value>74</value>
    <shrsOrPrnAmt>
      <sshPrnamt>23300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>23300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIBANYE STILLWATER</nameOfIssuer>
    <titleOfClass>SPONSORED ADR</titleOfClass>
    <cusip>825724206</cusip>
    <value>46</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIGNET JEWELERS LIMITED</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G81276100</cusip>
    <value>108</value>
    <shrsOrPrnAmt>
      <sshPrnamt>33600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>33600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIGNET JEWELERS LIMITED</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>G81276100</cusip>
    <value>99</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SINCLAIR BROADCAST GROUP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>829226109</cusip>
    <value>24</value>
    <shrsOrPrnAmt>
      <sshPrnamt>416800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>416800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIRIUS XM HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>82968B103</cusip>
    <value>884</value>
    <shrsOrPrnAmt>
      <sshPrnamt>123666</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>123666</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIRIUS XM HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>82968B103</cusip>
    <value>75</value>
    <shrsOrPrnAmt>
      <sshPrnamt>66988</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>66988</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIRIUS XM HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>82968B103</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>297200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>297200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIX FLAGS ENTMT CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>83001A102</cusip>
    <value>22</value>
    <shrsOrPrnAmt>
      <sshPrnamt>11900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>11900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SIX FLAGS ENTMT CORP NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>83001A102</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SMILEDIRECTCLUB INC</nameOfIssuer>
    <titleOfClass>CL A COM</titleOfClass>
    <cusip>83192H106</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>44500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>44500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SNAP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>83304A106</cusip>
    <value>2079</value>
    <shrsOrPrnAmt>
      <sshPrnamt>3778100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>3778100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SNAP INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>83304A106</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>56800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>56800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SNAP ON INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>833034101</cusip>
    <value>51</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SOCIEDAD QUIMICA MINERA DE C</nameOfIssuer>
    <titleOfClass>SPON ADR SER B</titleOfClass>
    <cusip>833635105</cusip>
    <value>463</value>
    <shrsOrPrnAmt>
      <sshPrnamt>17347</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>17347</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SOCIEDAD QUIMICA MINERA DE C</nameOfIssuer>
    <titleOfClass>SPON ADR SER B</titleOfClass>
    <cusip>833635105</cusip>
    <value>44</value>
    <shrsOrPrnAmt>
      <sshPrnamt>54100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>54100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SOLID BIOSCIENCES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>83422E105</cusip>
    <value>2</value>
    <shrsOrPrnAmt>
      <sshPrnamt>27800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>27800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SONOS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>83570H108</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>131300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>131300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SOUTHERN CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>842587107</cusip>
    <value>651</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10224</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10224</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SOUTHERN CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>842587107</cusip>
    <value>68</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SOUTHWEST AIRLS CO</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>844741108</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR DOW JONES INDL AVRG ETF</nameOfIssuer>
    <titleOfClass>UT SER 1</titleOfClass>
    <cusip>78467X109</cusip>
    <value>1756</value>
    <shrsOrPrnAmt>
      <sshPrnamt>106500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>106500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR DOW JONES INDL AVRG ETF</nameOfIssuer>
    <titleOfClass>UT SER 1</titleOfClass>
    <cusip>78467X109</cusip>
    <value>156</value>
    <shrsOrPrnAmt>
      <sshPrnamt>49400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>49400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR GOLD TRUST</nameOfIssuer>
    <titleOfClass>GOLD SHS</titleOfClass>
    <cusip>78463V107</cusip>
    <value>2348</value>
    <shrsOrPrnAmt>
      <sshPrnamt>239400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>239400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR GOLD TRUST</nameOfIssuer>
    <titleOfClass>GOLD SHS</titleOfClass>
    <cusip>78463V107</cusip>
    <value>33</value>
    <shrsOrPrnAmt>
      <sshPrnamt>53600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>53600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR S&amp;P 500 ETF TR</nameOfIssuer>
    <titleOfClass>TR UNIT</titleOfClass>
    <cusip>78462F103</cusip>
    <value>4906</value>
    <shrsOrPrnAmt>
      <sshPrnamt>366300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>366300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR S&amp;P 500 ETF TR</nameOfIssuer>
    <titleOfClass>TR UNIT</titleOfClass>
    <cusip>78462F103</cusip>
    <value>221</value>
    <shrsOrPrnAmt>
      <sshPrnamt>420500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>420500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR SERIES TRUST</nameOfIssuer>
    <titleOfClass>S&amp;P REGL BKG</titleOfClass>
    <cusip>78464A698</cusip>
    <value>91</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1203100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1203100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR SERIES TRUST</nameOfIssuer>
    <titleOfClass>S&amp;P REGL BKG</titleOfClass>
    <cusip>78464A698</cusip>
    <value>821</value>
    <shrsOrPrnAmt>
      <sshPrnamt>382800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>382800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR SERIES TRUST</nameOfIssuer>
    <titleOfClass>S&amp;P REGL BKG</titleOfClass>
    <cusip>78464A698</cusip>
    <value>5123</value>
    <shrsOrPrnAmt>
      <sshPrnamt>87942</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>87942</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR SERIES TRUST</nameOfIssuer>
    <titleOfClass>S&amp;P BK ETF</titleOfClass>
    <cusip>78464A797</cusip>
    <value>61</value>
    <shrsOrPrnAmt>
      <sshPrnamt>246600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>246600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR SERIES TRUST</nameOfIssuer>
    <titleOfClass>S&amp;P BK ETF</titleOfClass>
    <cusip>78464A797</cusip>
    <value>888</value>
    <shrsOrPrnAmt>
      <sshPrnamt>151600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>151600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPDR SERIES TRUST</nameOfIssuer>
    <titleOfClass>BLOOMBERG BRCLYS</titleOfClass>
    <cusip>78468R622</cusip>
    <value>84</value>
    <shrsOrPrnAmt>
      <sshPrnamt>261398</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>261398</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPECTRUM PHARMACEUTICALS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>84763A108</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPLUNK INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>848637104</cusip>
    <value>204</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPRINT CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>85207U105</cusip>
    <value>16</value>
    <shrsOrPrnAmt>
      <sshPrnamt>569100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>569100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SPRINT CORPORATION</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>85207U105</cusip>
    <value>1233</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1474000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1474000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SQUARE INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>852234103</cusip>
    <value>1857</value>
    <shrsOrPrnAmt>
      <sshPrnamt>29679</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>29679</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SQUARE INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>852234103</cusip>
    <value>690</value>
    <shrsOrPrnAmt>
      <sshPrnamt>32400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>32400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SQUARE INC</nameOfIssuer>
    <titleOfClass>CL A</titleOfClass>
    <cusip>852234103</cusip>
    <value>283</value>
    <shrsOrPrnAmt>
      <sshPrnamt>88500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>88500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STANLEY BLACK &amp; DECKER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>854502101</cusip>
    <value>18862</value>
    <shrsOrPrnAmt>
      <sshPrnamt>113807</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>113807</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STANLEY BLACK &amp; DECKER INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>854502101</cusip>
    <value>1057</value>
    <shrsOrPrnAmt>
      <sshPrnamt>98400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>98400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STARBUCKS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>855244109</cusip>
    <value>5665</value>
    <shrsOrPrnAmt>
      <sshPrnamt>64439</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>64439</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STARBUCKS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>855244109</cusip>
    <value>261</value>
    <shrsOrPrnAmt>
      <sshPrnamt>101500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>101500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STARBUCKS CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>855244109</cusip>
    <value>15</value>
    <shrsOrPrnAmt>
      <sshPrnamt>31900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>31900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STEEL DYNAMICS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>858119100</cusip>
    <value>9</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STITCH FIX INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>860897107</cusip>
    <value>78</value>
    <shrsOrPrnAmt>
      <sshPrnamt>664300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>664300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STITCH FIX INC</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>860897107</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>661900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>661900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STMICROELECTRONICS N V</nameOfIssuer>
    <titleOfClass>NY REGISTRY</titleOfClass>
    <cusip>861012102</cusip>
    <value>580</value>
    <shrsOrPrnAmt>
      <sshPrnamt>21565</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>21565</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STONECO LTD</nameOfIssuer>
    <titleOfClass>COM CL A</titleOfClass>
    <cusip>G85158106</cusip>
    <value>1701</value>
    <shrsOrPrnAmt>
      <sshPrnamt>203100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>203100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>STRATASYS LTD</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>M85548101</cusip>
    <value>29</value>
    <shrsOrPrnAmt>
      <sshPrnamt>59000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>59000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SUNCOR ENERGY INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>867224107</cusip>
    <value>328</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10012</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10012</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SUNCOR ENERGY INC NEW</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>867224107</cusip>
    <value>10</value>
    <shrsOrPrnAmt>
      <sshPrnamt>15900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>15900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SUNPOWER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>867652406</cusip>
    <value>293</value>
    <shrsOrPrnAmt>
      <sshPrnamt>37514</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>37514</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SUNPOWER CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>867652406</cusip>
    <value>40</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>26500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SUNRUN INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>86771W105</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>SYNCHRONOSS TECHNOLOGIES INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>87157B103</cusip>
    <value>12</value>
    <shrsOrPrnAmt>
      <sshPrnamt>39000</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>39000</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>TANGER FACTORY OUTLET CTRS I</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>875465106</cusip>
    <value>125</value>
    <shrsOrPrnAmt>
      <sshPrnamt>477800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>477800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>TANGER FACTORY OUTLET CTRS I</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>875465106</cusip>
    <value>11</value>
    <shrsOrPrnAmt>
      <sshPrnamt>18700</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>18700</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>TD AMERITRADE HLDG CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>87236Y108</cusip>
    <value>686</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13809</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13809</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>TD AMERITRADE HLDG CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>87236Y108</cusip>
    <value>55</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>THE CHARLES SCHWAB CORPORATI</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>808513105</cusip>
    <value>67</value>
    <shrsOrPrnAmt>
      <sshPrnamt>20100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>20100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>THE CHARLES SCHWAB CORPORATI</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>808513105</cusip>
    <value>4</value>
    <shrsOrPrnAmt>
      <sshPrnamt>19300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>19300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>TRANSOCEAN LTD</nameOfIssuer>
    <titleOfClass>REG SHS</titleOfClass>
    <cusip>H8817H100</cusip>
    <value>198</value>
    <shrsOrPrnAmt>
      <sshPrnamt>249500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>249500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>TRANSOCEAN LTD</nameOfIssuer>
    <titleOfClass>REG SHS</titleOfClass>
    <cusip>H8817H100</cusip>
    <value>72</value>
    <shrsOrPrnAmt>
      <sshPrnamt>240800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>240800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>U S SILICA HLDGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>90346E103</cusip>
    <value>3</value>
    <shrsOrPrnAmt>
      <sshPrnamt>12100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>12100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>UBS AG JERSEY BRH</nameOfIssuer>
    <titleOfClass>ALERIAN INFRST</titleOfClass>
    <cusip>902641646</cusip>
    <value>312</value>
    <shrsOrPrnAmt>
      <sshPrnamt>16089</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>16089</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>UBS AG LONDON BRH</nameOfIssuer>
    <titleOfClass>ETRACS MTH 2XLV</titleOfClass>
    <cusip>90270L842</cusip>
    <value>513</value>
    <shrsOrPrnAmt>
      <sshPrnamt>35942</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>35942</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>UNIQURE NV</nameOfIssuer>
    <titleOfClass>SHS</titleOfClass>
    <cusip>N90064101</cusip>
    <value>886</value>
    <shrsOrPrnAmt>
      <sshPrnamt>162900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>162900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>UNIVERSAL DISPLAY CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>91347P105</cusip>
    <value>352</value>
    <shrsOrPrnAmt>
      <sshPrnamt>9500</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>9500</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>UNIVERSAL DISPLAY CORP</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>91347P105</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>GOLD MINERS ETF</titleOfClass>
    <cusip>92189F106</cusip>
    <value>817</value>
    <shrsOrPrnAmt>
      <sshPrnamt>252900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>252900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>GOLD MINERS ETF</titleOfClass>
    <cusip>92189F106</cusip>
    <value>154</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1060900</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1060900</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>RUSSIA ETF</titleOfClass>
    <cusip>92189F403</cusip>
    <value>6</value>
    <shrsOrPrnAmt>
      <sshPrnamt>267800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>267800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>RUSSIA ETF</titleOfClass>
    <cusip>92189F403</cusip>
    <value>1648</value>
    <shrsOrPrnAmt>
      <sshPrnamt>65981</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>65981</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>RUSSIA ETF</titleOfClass>
    <cusip>92189F403</cusip>
    <value>7</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>SEMICONDUCTOR ET</titleOfClass>
    <cusip>92189F676</cusip>
    <value>85</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>14600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>SEMICONDUCTOR ET</titleOfClass>
    <cusip>92189F676</cusip>
    <value>14</value>
    <shrsOrPrnAmt>
      <sshPrnamt>184200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>184200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>OIL SVCS ETF</titleOfClass>
    <cusip>92189F718</cusip>
    <value>188</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1413800</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>1413800</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>JR GOLD MINERS E</titleOfClass>
    <cusip>92189F791</cusip>
    <value>34</value>
    <shrsOrPrnAmt>
      <sshPrnamt>13400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>13400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VANECK VECTORS ETF TRUST</nameOfIssuer>
    <titleOfClass>JR GOLD MINERS E</titleOfClass>
    <cusip>92189F791</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>75400</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>75400</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>VIRGIN GALACTIC HOLDINGS INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>92766K106</cusip>
    <value>138</value>
    <shrsOrPrnAmt>
      <sshPrnamt>97100</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>97100</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>WISDOMTREE TR</nameOfIssuer>
    <titleOfClass>INDIA ERNGS FD</titleOfClass>
    <cusip>97717W422</cusip>
    <value>1</value>
    <shrsOrPrnAmt>
      <sshPrnamt>10300</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>10300</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>YAMANA GOLD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>98462Y100</cusip>
    <value>5</value>
    <shrsOrPrnAmt>
      <sshPrnamt>40200</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Put</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>40200</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>YAMANA GOLD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>98462Y100</cusip>
    <value>412</value>
    <shrsOrPrnAmt>
      <sshPrnamt>104368</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>104368</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
  <infoTable>
    <nameOfIssuer>YAMANA GOLD INC</nameOfIssuer>
    <titleOfClass>COM</titleOfClass>
    <cusip>98462Y100</cusip>
    <value>17</value>
    <shrsOrPrnAmt>
      <sshPrnamt>38600</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <putCall>Call</putCall>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>38600</Sole>
      <Shared>0</Shared>
      <None>0</None>
    </votingAuthority>
  </infoTable>
</informationTable>
