The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3M CO COM 88579Y101 1,502 11,000 SH Call SOLE - 11,000 0 0
ABBOTT LABS COM 002824100 483 6,127 SH   SOLE - 6,127 0 0
ABBOTT LABS COM 002824100 497 6,300 SH Call SOLE - 6,300 0 0
ABBVIE INC COM 00287Y109 762 10,000 SH Put SOLE - 10,000 0 0
ABERDEEN ASIA-PACIFIC INCOME COM 003009107 108 32,000 SH   SOLE - 32,000 0 0
ABERDEEN EMRG MRKTS EQT INM COM 00301W105 1,001 193,234 SH   SOLE - 193,234 0 0
ABERDEEN GLOBAL DYNAMIC DIVI COM 00302M106 246 33,470 SH   SOLE - 33,470 0 0
ABERDEEN GLOBAL PREMIER PPTY COM SH BEN INT 00302L108 89 20,879 SH   SOLE - 20,879 0 0
ABERDEEN INCOME CR STRATEGIE COM 003057106 103 13,992 SH   SOLE - 13,992 0 0
ABERDEEN TOTAL DYNAMIC DIVD COM SH BEN INT 00326L100 156 23,758 SH   SOLE - 23,758 0 0
ACAMAR PARTNERS ACQSITION CO *W EXP 02/26/202 004285110 48 100,709 SH   SOLE - 100,709 0 0
ACAMAR PARTNERS ACQSITION CO CL A 004285102 1 100 SH   SOLE - 100 0 0
ACAMAR PARTNERS ACQSITION CO UNIT 12/30/2025 004285201 456 46,001 SH   SOLE - 46,001 0 0
ACCELERATE DIAGNOSTICS INC COM 00430H102 200 24,000 SH   SOLE - 24,000 0 0
ACCELERON PHARMA INC COM 00434H108 413 4,597 SH   SOLE - 4,597 0 0
ACCELERON PHARMA INC COM 00434H108 4,205 46,800 SH Call SOLE - 46,800 0 0
ACCELERON PHARMA INC COM 00434H108 5,060 56,300 SH Put SOLE - 56,300 0 0
ACORDA THERAPEUTICS INC COM 00484M106 11 11,315 SH   SOLE - 11,315 0 0
ACORDA THERAPEUTICS INC COM 00484M106 9 10,000 SH Call SOLE - 10,000 0 0
ADAM NAT RES FD INC COM 00548F105 327 39,453 SH   SOLE - 39,453 0 0
ADVANCED MICRO DEVICES INC COM 007903107 227 5,000 SH   SOLE - 5,000 0 0
ADVANCED MICRO DEVICES INC COM 007903107 1,601 35,200 SH Put SOLE - 35,200 0 0
AECOM COM 00766T100 1,589 53,246 SH   SOLE - 53,246 0 0
AECOM COM 00766T100 453 15,200 SH Put SOLE - 15,200 0 0
AEROJET ROCKETDYNE HLDGS INC NOTE 2.250%12/1 007800AB1 3,307 2,000,000 PRN   SOLE - 2,000,000 0 0
AGNC INVT CORP COM 00123Q104 765 72,319 SH   SOLE - 72,319 0 0
AIMMUNE THERAPEUTICS INC COM 00900T107 154 10,683 SH   SOLE - 10,683 0 0
AIMMUNE THERAPEUTICS INC COM 00900T107 782 54,200 SH Call SOLE - 54,200 0 0
AIR PRODS & CHEMS INC COM 009158106 279 1,400 SH   SOLE - 1,400 0 0
AKAMAI TECHNOLOGIES INC NOTE 0.125% 5/0 00971TAJ0 2,240 2,000,000 PRN   SOLE - 2,000,000 0 0
ALCOA CORP COM 013872106 440 71,462 SH   SOLE - 71,462 0 0
ALIBABA GROUP HLDG LTD SPONSORED ADS 01609W102 195 1,002 SH   SOLE - 1,002 0 0
ALIBABA GROUP HLDG LTD SPONSORED ADS 01609W102 1,944 10,000 SH Put SOLE - 10,000 0 0
ALLAKOS INC COM 01671P100 253 5,685 SH   SOLE - 5,685 0 0
ALLAKOS INC COM 01671P100 89 2,000 SH Call SOLE - 2,000 0 0
ALLAKOS INC COM 01671P100 454 10,200 SH Put SOLE - 10,200 0 0
ALLEGION PLC ORD SHS G0176J109 245 2,663 SH   SOLE - 2,663 0 0
ALLSCRIPTS HEALTHCARE SOLUTN NOTE 1.250% 7/0 01988PAD0 369 381,000 PRN   SOLE - 381,000 0 0
ALPHABET INC CAP STK CL C 02079K107 257 221 SH   SOLE - 221 0 0
ALTERYX INC NOTE 0.500% 6/0 02156BAB9 1,274 572,000 PRN   SOLE - 572,000 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 196 48,909 SH   SOLE - 48,909 0 0
AMARIN CORP PLC SPONS ADR NEW 023111206 1,018 254,700 SH Call SOLE - 254,700 0 0
AMCI ACQUISITION CORP *W EXP 05/20/202 00165R119 4 25,000 SH   SOLE - 25,000 0 0
AMCI ACQUISITION CORP CLASS A 00165R101 51 5,000 SH   SOLE - 5,000 0 0
AMERICAN AIRLS GROUP INC COM 02376R102 305 25,000 SH Put SOLE - 25,000 0 0
AMERICAN AIRLS GROUP INC COM 02376R102 33,868 2,778,370 SH   SOLE - 2,778,370 0 0
AMERICAN INTL GROUP INC *W EXP 01/19/202 026874156 8 10,686 SH   SOLE - 10,686 0 0
AMGEN INC COM 031162100 1,825 9,000 SH Put SOLE - 9,000 0 0
AMGEN INC COM 031162100 527 2,600 SH   SOLE - 2,600 0 0
AMPLIFY ENERGY CORP NEW COM 03212B103 37 64,832 SH   SOLE - 64,832 0 0
ANGI HOMESERVICES INC COM CL A 00183L102 52 10,000 SH Put SOLE - 10,000 0 0
ANIXTER INTL INC COM 035290105 644 7,329 SH   SOLE - 7,329 0 0
ANSYS INC COM 03662Q105 1,034 4,450 SH   SOLE - 4,450 0 0
ANTERO RESOURCES CORP COM 03674X106 42 59,399 SH   SOLE - 59,399 0 0
ANTERO RESOURCES CORP COM 03674X106 7 10,000 SH Call SOLE - 10,000 0 0
ANWORTH MORTGAGE ASSET CP COM 037347101 100 88,621 SH   SOLE - 88,621 0 0
APELLIS PHARMACEUTICALS INC COM 03753U106 121 4,500 SH Put SOLE - 4,500 0 0
APELLIS PHARMACEUTICALS INC COM 03753U106 188 7,000 SH Call SOLE - 7,000 0 0
APPLE INC COM 037833100 102 400 SH   SOLE - 400 0 0
APPLE INC COM 037833100 2,543 10,000 SH Call SOLE - 10,000 0 0
APPLE INC COM 037833100 3,814 15,000 SH Put SOLE - 15,000 0 0
APPLIED OPTOELECTRONICS INC COM 03823U102 229 30,100 SH Put SOLE - 30,100 0 0
APPLIED OPTOELECTRONICS INC NOTE 5.000% 3/1 03823UAB8 2,197 3,000,000 PRN   SOLE - 3,000,000 0 0
APTOSE BIOSCIENCES INC COM NEW 03835T200 67 11,400 SH Call SOLE - 11,400 0 0
APTOSE BIOSCIENCES INC COM NEW 03835T200 128 21,610 SH   SOLE - 21,610 0 0
ARGENX SE SPONSORED ADR 04016X101 4,664 35,400 SH Call SOLE - 35,400 0 0
ARGENX SE SPONSORED ADR 04016X101 40 300 SH Put SOLE - 300 0 0
ARMSTRONG FLOORING INC COM 04238R106 27 19,196 SH   SOLE - 19,196 0 0
ASSEMBLY BIOSCIENCES INC COM 045396108 230 15,500 SH Call SOLE - 15,500 0 0
ASSERTIO THERAPEUTICS INC NOTE 2.500% 9/0 249908AA2 4,339 4,396,000 PRN   SOLE - 4,396,000 0 0
ASSOCIATED BANC CORP COM 045487105 176 13,787 SH   SOLE - 13,787 0 0
ATLAS AIR WORLDWIDE HLDGS IN NOTE 1.875% 6/0 049164BJ4 3,315 4,000,000 PRN   SOLE - 4,000,000 0 0
AURINIA PHARMACEUTICALS INC COM 05156V102 263 18,125 SH   SOLE - 18,125 0 0
AURINIA PHARMACEUTICALS INC COM 05156V102 472 32,500 SH Call SOLE - 32,500 0 0
AUTODESK INC COM 052769106 199 1,277 SH   SOLE - 1,277 0 0
AUTODESK INC COM 052769106 390 2,500 SH Put SOLE - 2,500 0 0
AVAYA HLDGS CORP NOTE 2.250% 6/1 05351XAB7 2,318 2,880,000 PRN   SOLE - 2,880,000 0 0
AWARE INC MASS COM 05453N100 31 10,959 SH   SOLE - 10,959 0 0
AXOVANT GENE THERAPIES LTD COM G0750W203 77 31,662 SH   SOLE - 31,662 0 0
AXOVANT GENE THERAPIES LTD COM G0750W203 87 35,600 SH Put SOLE - 35,600 0 0
AXSOME THERAPEUTICS INC COM 05464T104 842 14,300 SH Call SOLE - 14,300 0 0
AXSOME THERAPEUTICS INC COM 05464T104 18 300 SH Put SOLE - 300 0 0
BANDWIDTH INC COM CL A 05988J103 343 5,103 SH   SOLE - 5,103 0 0
BECTON DICKINSON & CO PFD SHS CONV A 075887208 44,496 809,281 SH   SOLE - 809,281 0 0
BEYOND MEAT INC COM 08862E109 733 11,000 SH   SOLE - 11,000 0 0
BEYOND MEAT INC COM 08862E109 733 11,000 SH Put SOLE - 11,000 0 0
BHP GROUP PLC SPONSORED ADR 05545E209 471 15,541 SH   SOLE - 15,541 0 0
BILIBILI INC SPONS ADS REP Z 090040106 429 18,300 SH   SOLE - 18,300 0 0
BILIBILI INC SPONS ADS REP Z 090040106 476 20,300 SH Put SOLE - 20,300 0 0
BIO RAD LABS INC CL A 090572207 105 300 SH   SOLE - 300 0 0
BIO RAD LABS INC CL B 090572108 4,763 13,588 SH   SOLE - 13,588 0 0
BIOGEN INC COM 09062X103 7,593 24,000 SH Put SOLE - 24,000 0 0
BIOGEN INC COM 09062X103 259 820 SH   SOLE - 820 0 0
BIOGEN INC COM 09062X103 886 2,800 SH Call SOLE - 2,800 0 0
BIOHAVEN PHARMACTL HLDG CO L COM G11196105 1,140 33,500 SH Call SOLE - 33,500 0 0
BIOHAVEN PHARMACTL HLDG CO L COM G11196105 95 2,781 SH   SOLE - 2,781 0 0
BIOMARIN PHARMACEUTICAL INC NOTE 1.500%10/1 09061GAF8 3,045 2,873,000 PRN   SOLE - 2,873,000 0 0
BLACKROCK DEBT STRATEGIES FD COM NEW 09255R202 234 27,660 SH   SOLE - 27,660 0 0
BLACKROCK ENHANCED EQUITY DI COM 09251A104 556 85,093 SH   SOLE - 85,093 0 0
BLACKROCK RES & COMMODITIES SHS 09257A108 55 10,839 SH   SOLE - 10,839 0 0
BOOKING HLDGS INC COM 09857L108 539 401 SH   SOLE - 401 0 0
BOOKING HLDGS INC COM 09857L108 1,345 1,000 SH Put SOLE - 1,000 0 0
BOULDER GROWTH & INCOME FD I COM 101507101 6,098 662,839 SH   SOLE - 662,839 0 0
BRISTOL-MYERS SQUIBB CO COM 110122108 913 16,400 SH   SOLE - 16,400 0 0
BRISTOL-MYERS SQUIBB CO RIGHT 99/99/9999 110122157 1,476 388,207 SH   SOLE - 388,207 0 0
BROWN FORMAN CORP CL A 115637100 208 4,039 SH   SOLE - 4,039 0 0
CAESARS ENTMT CORP COM 127686103 9,286 1,373,602 SH   SOLE - 1,373,602 0 0
CAESARS ENTMT CORP COM 127686103 220 32,500 SH Call SOLE - 32,500 0 0
CAESARS ENTMT CORP COM 127686103 308 45,600 SH Put SOLE - 45,600 0 0
CAESARS ENTMT CORP NOTE 5.000%10/0 127686AA1 38,523 36,068,412 PRN   SOLE - 36,068,412 0 0
CAMPBELL SOUP CO COM 134429109 687 14,900 SH Call SOLE - 14,900 0 0
CAMPBELL SOUP CO COM 134429109 92 2,000 SH Put SOLE - 2,000 0 0
CARDINAL HEALTH INC COM 14149Y108 609 12,700 SH Call SOLE - 12,700 0 0
CARNIVAL PLC ADR 14365C103 367 30,761 SH   SOLE - 30,761 0 0
CARS COM INC COM 14575E105 63 14,720 SH   SOLE - 14,720 0 0
CARVANA CO CL A 146869102 523 9,500 SH Call SOLE - 9,500 0 0
CARVANA CO CL A 146869102 447 8,100 SH Put SOLE - 8,100 0 0
CATERPILLAR INC DEL COM 149123101 603 5,200 SH Call SOLE - 5,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 463 30,000 SH Put SOLE - 30,000 0 0
CENTERPOINT ENERGY INC DEP RP PFD CV B 15189T503 1,684 57,159 SH   SOLE - 57,159 0 0
CENTRAL SECS CORP COM 155123102 948 36,716 SH   SOLE - 36,716 0 0
CERENCE INC COM 156727109 285 18,512 SH   SOLE - 18,512 0 0
CHANGE HEALTHCARE INC COM 15912K100 133 13,343 SH   SOLE - 13,343 0 0
CHANGE HEALTHCARE INC COM 15912K100 161 16,100 SH Put SOLE - 16,100 0 0
CHANGE HEALTHCARE INC UNIT 99/99/9999 15912K209 4 84 SH   SOLE - 84 0 0
CHEGG INC COM 163092109 358 10,000 SH Put SOLE - 10,000 0 0
CHEGG INC NOTE 0.250% 5/1 163092AB5 12,819 8,979,000 PRN   SOLE - 8,979,000 0 0
CHESAPEAKE ENERGY CORP COM 165167107 21 119,789 SH   SOLE - 119,789 0 0
CHESAPEAKE ENERGY CORP COM 165167107 6 35,000 SH Put SOLE - 35,000 0 0
CHINA FD INC COM 169373107 2,934 158,945 SH   SOLE - 158,945 0 0
CHURCHILL DOWNS INC COM 171484108 216 2,100 SH   SOLE - 2,100 0 0
CINCINNATI BELL INC NEW PFD CV DEP1/20 171871403 333 7,526 SH   SOLE - 7,526 0 0
CITIGROUP INC COM NEW 172967424 539 12,801 SH   SOLE - 12,801 0 0
CLOROX CO DEL COM 189054109 244 1,408 SH   SOLE - 1,408 0 0
CLOROX CO DEL COM 189054109 780 4,500 SH Call SOLE - 4,500 0 0
CLOROX CO DEL COM 189054109 2,598 15,000 SH Put SOLE - 15,000 0 0
CLOUGH GLOBAL OPPORTUNITIES SH BEN INT 18914E106 497 69,291 SH   SOLE - 69,291 0 0
CLOVIS ONCOLOGY INC COM 189464100 29 4,600 SH Call SOLE - 4,600 0 0
CLOVIS ONCOLOGY INC COM 189464100 1,263 198,500 SH Put SOLE - 198,500 0 0
CLOVIS ONCOLOGY INC NOTE 1.250% 5/0 189464AC4 592 1,000,000 PRN   SOLE - 1,000,000 0 0
COCA COLA CO COM 191216100 173 3,900 SH   SOLE - 3,900 0 0
COCA COLA CO COM 191216100 221 5,000 SH Put SOLE - 5,000 0 0
COLFAX CORP UNIT 01/15/2022T 194014205 1,182 12,855 SH   SOLE - 12,855 0 0
COLONY STARWOOD HOMES NOTE 3.500% 1/1 19625XAB8 1,068 1,000,000 PRN   SOLE - 1,000,000 0 0
CONDUENT INC COM 206787103 40 16,240 SH   SOLE - 16,240 0 0
CONOCOPHILLIPS COM 20825C104 219 7,116 SH   SOLE - 7,116 0 0
CONSTELLATION BRANDS INC CL B 21036P207 536 3,605 SH   SOLE - 3,605 0 0
CORNERSTONE STRATEGIC VALUE COM 21924B302 229 28,168 SH   SOLE - 28,168 0 0
CROWN CASTLE INTL CORP NEW 6.875% CON PFD A 22822V309 17,698 13,635 SH   SOLE - 13,635 0 0
CSX CORP COM 126408103 149 2,600 SH Put SOLE - 2,600 0 0
CSX CORP COM 126408103 396 6,900 SH Call SOLE - 6,900 0 0
CTRIP COM INTL LTD DBCV 1.990% 7/0 22943FAH3 978 1,000,000 PRN   SOLE - 1,000,000 0 0
CTRIP COM INTL LTD NOTE 1.000% 7/0 22943FAF7 1,464 1,500,000 PRN   SOLE - 1,500,000 0 0
CUSHING ENERGY INCOME COM SH BEN INT 23162T102 122 46,128 SH   SOLE - 46,128 0 0
CUSHING RENAISSANCE FD COM 231647108 386 63,811 SH   SOLE - 63,811 0 0
CYPRESS SEMICONDUCTOR CORP COM 232806109 1,192 51,100 SH Call SOLE - 51,100 0 0
CYPRESS SEMICONDUCTOR CORP COM 232806109 1,147 49,200 SH Put SOLE - 49,200 0 0
CYPRESS SEMICONDUCTOR CORP NOTE 2.000% 2/0 232806AP4 20,315 16,935,000 PRN   SOLE - 16,935,000 0 0
CYTOKINETICS INC NOTE 4.000%11/1 23282WAA8 5,970 4,500,000 PRN   SOLE - 4,500,000 0 0
DELL TECHNOLOGIES INC CL C 24703L202 203 5,152 SH   SOLE - 5,152 0 0
DELL TECHNOLOGIES INC CL C 24703L202 864 21,800 SH Put SOLE - 21,800 0 0
DEXCOM INC COM 252131107 188 700 SH   SOLE - 700 0 0
DEXCOM INC NOTE 0.750% 5/1 252131AF4 4,072 1,500,000 PRN   SOLE - 1,500,000 0 0
DEXCOM INC NOTE 0.750%12/0 252131AH0 13,620 7,838,000 PRN   SOLE - 7,838,000 0 0
DHT HOLDINGS INC NOTE 4.500% 8/1 23335SAD8 10,198 7,406,000 PRN   SOLE - 7,406,000 0 0
DIAMONDPEAK HLDGS COR *W EXP 02/22/202 25280H118 50 111,970 SH   SOLE - 111,970 0 0
DIAMONDPEAK HLDGS COR COM CL A 25280H100 139 13,365 SH   SOLE - 13,365 0 0
DIGITAL RLTY TR INC COM 253868103 194 1,403 SH Put SOLE - 1,403 0 0
DIGITAL RLTY TR INC COM 253868103 17 122 SH Call SOLE - 122 0 0
DIGITAL RLTY TR INC COM 253868103 511 3,678 SH   SOLE - 3,678 0 0
DISCOVERY INC COM SER B 25470F203 69 2,511 SH   SOLE - 2,511 0 0
DISCOVERY INC COM SER C 25470F302 489 27,903 SH   SOLE - 27,903 0 0
DISNEY WALT CO COM DISNEY 254687106 1,886 19,527 SH   SOLE - 19,527 0 0
DISNEY WALT CO COM DISNEY 254687106 1,980 20,500 SH Call SOLE - 20,500 0 0
DISNEY WALT CO COM DISNEY 254687106 2,946 30,500 SH Put SOLE - 30,500 0 0
DIVIDEND & INCOME FUND COM NEW 25538A204 713 81,127 SH   SOLE - 81,127 0 0
DOCUSIGN INC NOTE 0.500% 9/1 256163AB2 1,414 1,000,000 PRN   SOLE - 1,000,000 0 0
DRIVE SHACK INC COM 262077100 16 10,549 SH   SOLE - 10,549 0 0
DYCOM INDS INC NOTE 0.750% 9/1 267475AB7 1,081 1,250,000 PRN   SOLE - 1,250,000 0 0
EAGLE CAP GROWTH FD INC COM 269451100 100 16,358 SH   SOLE - 16,358 0 0
EAST STONE ACQUISITION CORP UNIT 12/31/2026 G2911D124 294 30,000 SH   SOLE - 30,000 0 0
EBAY INC COM 278642103 700 23,300 SH   SOLE - 23,300 0 0
EBAY INC COM 278642103 334 11,100 SH Put SOLE - 11,100 0 0
ECOLAB INC COM 278865100 2,030 13,027 SH   SOLE - 13,027 0 0
ECOLAB INC COM 278865100 2,338 15,000 SH Put SOLE - 15,000 0 0
EL PASO ELEC CO COM NEW 283677854 1,019 15,000 SH   SOLE - 15,000 0 0
EL PASO ELEC CO COM NEW 283677854 1,019 15,000 SH Put SOLE - 15,000 0 0
ELECTRAMECCANICA VEHS CORP *W EXP 08/03/202 284849114 4 15,216 SH   SOLE - 15,216 0 0
ENCORE CAP GROUP INC NOTE 3.250% 3/1 292554AK8 2,355 2,700,000 PRN   SOLE - 2,700,000 0 0
ENPHASE ENERGY INC COM 29355A107 48 1,500 SH   SOLE - 1,500 0 0
ENPHASE ENERGY INC COM 29355A107 242 7,500 SH Put SOLE - 7,500 0 0
ENVESTNET INC COM 29404K106 27 500 SH   SOLE - 500 0 0
ENVESTNET INC NOTE 1.750% 6/0 29404KAB2 2,270 2,206,000 PRN   SOLE - 2,206,000 0 0
ESSENTIAL UTILS INC COM 29670G102 106 2,600 SH   SOLE - 2,600 0 0
ESSENTIAL UTILS INC UNIT 04/30/2022 29670G201 2,370 43,236 SH   SOLE - 43,236 0 0
ETSY INC NOTE 3/0 29786AAC0 2,533 2,000,000 PRN   SOLE - 2,000,000 0 0
EVOLENT HEALTH INC NOTE 1.500%10/1 30050BAD3 1,096 1,917,000 PRN   SOLE - 1,917,000 0 0
EXACT SCIENCES CORP COM 30063P105 481 8,300 SH Put SOLE - 8,300 0 0
EXACT SCIENCES CORP COM 30063P105 216 3,730 SH   SOLE - 3,730 0 0
EXACT SCIENCES CORP COM 30063P105 1,235 21,300 SH Call SOLE - 21,300 0 0
EXCHANGE LISTED FDS TR SABA INT RATE 30151E806 307 20,150 SH   SOLE - 20,150 0 0
EXXON MOBIL CORP COM 30231G102 406 10,700 SH   SOLE - 10,700 0 0
EXXON MOBIL CORP COM 30231G102 125 3,300 SH Call SOLE - 3,300 0 0
FIRST MAJESTIC SILVER CORP COM 32076V103 1,454 234,700 SH Put SOLE - 234,700 0 0
FIRSTHAND TECH VALUE FD INC COM 33766Y100 129 34,794 SH   SOLE - 34,794 0 0
FITBIT INC CL A 33812L102 340 51,100 SH Call SOLE - 51,100 0 0
FITBIT INC CL A 33812L102 234 35,100 SH   SOLE - 35,100 0 0
FORTIVE CORP 5% PFD CNV SER A 34959J207 2,375 3,257 SH   SOLE - 3,257 0 0
FORTY SEVEN INC COM 34983P104 954 10,000 SH   SOLE - 10,000 0 0
FORTY SEVEN INC COM 34983P104 2,882 30,200 SH Put SOLE - 30,200 0 0
FORUM MERGER II CORP *W EXP 09/30/202 34986F111 15 55,000 SH   SOLE - 55,000 0 0
FORUM MERGER II CORP CL A 34986F103 6 600 SH   SOLE - 600 0 0
FOX CORP CL A COM 35137L105 725 30,675 SH   SOLE - 30,675 0 0
FRANKLIN LTD DURATION INCOME COM 35472T101 305 38,852 SH   SOLE - 38,852 0 0
FRANKLIN UNVL TR SH BEN INT 355145103 95 15,504 SH   SOLE - 15,504 0 0
FS KKR CAPITAL CORP COM 302635107 30 10,000 SH   SOLE - 10,000 0 0
FTI CONSULTING INC NOTE 2.000% 8/1 302941AP4 920 700,000 PRN   SOLE - 700,000 0 0
GABELLI CONV&INCOM SECS FD I COM 36240B109 395 88,500 SH   SOLE - 88,500 0 0
GABELLI DIVID & INCOME TR COM 36242H104 1,401 94,595 SH   SOLE - 94,595 0 0
GABELLI GLB SML & MD CP VAL COM 36249W104 372 51,233 SH   SOLE - 51,233 0 0
GABELLI GLOBL UTIL & INCOME COM SH BEN INT 36242L105 156 11,517 SH   SOLE - 11,517 0 0
GABELLI HLTHCARE & WELLNESS SHS 36246K103 646 74,616 SH   SOLE - 74,616 0 0
GABELLI UTIL TR COM 36240A101 58 10,000 SH   SOLE - 10,000 0 0
GAMCO INVS INC CL A COM 361438104 179 16,280 SH   SOLE - 16,280 0 0
GAMESTOP CORP NEW CL A 36467W109 93 26,671 SH   SOLE - 26,671 0 0
GARRETT MOTION INC COM 366505105 173 60,551 SH   SOLE - 60,551 0 0
GCI LIBERTY INC COM CLASS A 36164V305 3,011 52,848 SH   SOLE - 52,848 0 0
GDL FD COM SH BEN IT 361570104 815 103,947 SH   SOLE - 103,947 0 0
GDS HLDGS LTD NOTE 2.000% 6/0 36165LAB4 5,384 4,200,000 PRN   SOLE - 4,200,000 0 0
GDS HLDGS LTD SPONSORED ADS 36165L108 296 5,100 SH Put SOLE - 5,100 0 0
GENERAL AMERN INVS INC COM 368802104 863 31,473 SH   SOLE - 31,473 0 0
GENERAL MTRS CO COM 37045V100 254 12,206 SH   SOLE - 12,206 0 0
GILEAD SCIENCES INC COM 375558103 4,134 55,300 SH Put SOLE - 55,300 0 0
GILEAD SCIENCES INC COM 375558103 3,168 42,372 SH   SOLE - 42,372 0 0
GILEAD SCIENCES INC COM 375558103 1,690 22,600 SH Call SOLE - 22,600 0 0
GLOBAL X FDS MSCI GREECE ETF 37950E366 849 149,198 SH   SOLE - 149,198 0 0
GOGO INC COM 38046C109 76 35,700 SH Put SOLE - 35,700 0 0
GOGO INC NOTE 6.000% 5/1 38046CAD1 991 1,500,000 PRN   SOLE - 1,500,000 0 0
GOSSAMER BIO INC COM 38341P102 102 10,010 SH   SOLE - 10,010 0 0
GOSSAMER BIO INC COM 38341P102 277 27,400 SH Call SOLE - 27,400 0 0
GOSSAMER BIO INC COM 38341P102 294 28,900 SH Put SOLE - 28,900 0 0
GRAY TELEVISION INC COM 389375106 118 11,000 SH   SOLE - 11,000 0 0
GREEN PLAINS INC NOTE 4.125% 9/0 393222AF1 2,462 4,000,000 PRN   SOLE - 4,000,000 0 0
GSI TECHNOLOGY COM 36241U106 78 11,222 SH   SOLE - 11,222 0 0
GTT COMMUNICATIONS INC COM 362393100 311 39,089 SH   SOLE - 39,089 0 0
GUIDEWIRE SOFTWARE INC NOTE 1.250% 3/1 40171VAA8 1,704 1,750,000 PRN   SOLE - 1,750,000 0 0
GW PHARMACEUTICALS PLC ADS 36197T103 438 5,000 SH Call SOLE - 5,000 0 0
GYRODYNE LLC COM 403829104 475 32,503 SH   SOLE - 32,503 0 0
HARMONIC INC NOTE 4.000%12/0 413160AB8 2,377 2,022,000 PRN   SOLE - 2,022,000 0 0
HARTFORD FINL SVCS GROUP INC COM 416515104 2,418 68,606 SH   SOLE - 68,606 0 0
HCA HEALTHCARE INC COM 40412C101 335 3,727 SH   SOLE - 3,727 0 0
HCA HEALTHCARE INC COM 40412C101 620 6,900 SH Call SOLE - 6,900 0 0
HCA HEALTHCARE INC COM 40412C101 1,617 18,000 SH Put SOLE - 18,000 0 0
HECLA MNG CO COM 422704106 43 23,744 SH   SOLE - 23,744 0 0
HECLA MNG CO PFD CV SER B 422704205 56 1,200 SH   SOLE - 1,200 0 0
HENNESSY CAP ACQUSTION CORP *W EXP 09/05/202 42589C112 39 110,850 SH   SOLE - 110,850 0 0
HERBALIFE NUTRITION LTD COM SHS G4412G101 685 23,496 SH   SOLE - 23,496 0 0
HERBALIFE NUTRITION LTD COM SHS G4412G101 1,983 68,000 SH Put SOLE - 68,000 0 0
HERSHEY CO COM 427866108 159 1,200 SH   SOLE - 1,200 0 0
HERSHEY CO COM 427866108 93 700 SH Call SOLE - 700 0 0
HEWLETT PACKARD ENTERPRISE C COM 42824C109 251 25,865 SH   SOLE - 25,865 0 0
HEWLETT PACKARD ENTERPRISE C COM 42824C109 49 5,000 SH Put SOLE - 5,000 0 0
HIGHLAND INCOME FD HIGHLAND INCOME 43010E404 2,793 327,387 SH   SOLE - 327,387 0 0
HORIZON PHARMA INVT LTD NOTE 2.500% 3/1 44052TAB7 13,234 11,311,000 PRN   SOLE - 11,311,000 0 0
HORIZON THERAPEUTICS PUB LTD SHS G46188101 1,001 33,800 SH Put SOLE - 33,800 0 0
HORMEL FOODS CORP COM 440452100 107 2,300 SH   SOLE - 2,300 0 0
HORMEL FOODS CORP COM 440452100 588 12,600 SH Call SOLE - 12,600 0 0
HORMEL FOODS CORP COM 440452100 5 100 SH Put SOLE - 100 0 0
HOSTESS BRANDS INC *W EXP 11/04/202 44109J114 71 62,296 SH   SOLE - 62,296 0 0
HUBSPOT INC NOTE 0.250% 6/0 443573AB6 3,217 2,161,000 PRN   SOLE - 2,161,000 0 0
HUMANA INC COM 444859102 1,759 5,600 SH Call SOLE - 5,600 0 0
IAC INTERACTIVECORP COM 44919P508 13,270 74,036 SH   SOLE - 74,036 0 0
IBERIABANK CORP COM 450828108 345 9,529 SH   SOLE - 9,529 0 0
IHEARTMEDIA INC COM CL A 45174J509 689 94,204 SH   SOLE - 94,204 0 0
ILLUMINA INC COM 452327109 191 700 SH Call SOLE - 700 0 0
ILLUMINA INC COM 452327109 191 700 SH Put SOLE - 700 0 0
ILLUMINA INC COM 452327109 273 1,000 SH   SOLE - 1,000 0 0
ILLUMINA INC NOTE 8/1 452327AK5 4,363 4,500,000 PRN   SOLE - 4,500,000 0 0
INDIA FD INC COM 454089103 517 37,928 SH   SOLE - 37,928 0 0
INDUSTRIAL LOGISTICS PPTYS T COM SHS BEN INT 456237106 2,050 116,889 SH   SOLE - 116,889 0 0
INOVIO PHARMACEUTICALS INC COM NEW 45773H201 567 76,300 SH Put SOLE - 76,300 0 0
INOVIO PHARMACEUTICALS INC COM NEW 45773H201 1 100 SH   SOLE - 100 0 0
INOVIO PHARMACEUTICALS INC COM NEW 45773H201 11 1,600 SH Call SOLE - 1,600 0 0
INOVIO PHARMACEUTICALS INC NOTE 6.500% 3/0 45773HAB8 1,470 1,000,000 PRN   SOLE - 1,000,000 0 0
INSMED INC COM PAR $.01 457669307 25 1,552 SH   SOLE - 1,552 0 0
INSMED INC COM PAR $.01 457669307 161 10,100 SH Call SOLE - 10,100 0 0
INSMED INC NOTE 1.750% 1/1 457669AA7 316 373,000 PRN   SOLE - 373,000 0 0
INSULET CORP NOTE 1.375%11/1 45784PAH4 20,997 11,467,000 PRN   SOLE - 11,467,000 0 0
INTERCEPT PHARMACEUTICALS IN COM 45845P108 214 3,400 SH Call SOLE - 3,400 0 0
INTERCEPT PHARMACEUTICALS IN COM 45845P108 1,359 21,600 SH Put SOLE - 21,600 0 0
INTERCEPT PHARMACEUTICALS IN NOTE 2.000% 5/1 45845PAB4 3,410 3,825,000 PRN   SOLE - 3,825,000 0 0
INTERCEPT PHARMACEUTICALS IN NOTE 3.250% 7/0 45845PAA6 1,125 1,388,000 PRN   SOLE - 1,388,000 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101 554 5,000 SH Call SOLE - 5,000 0 0
INTERNATIONAL BUSINESS MACHS COM 459200101 55 500 SH Put SOLE - 500 0 0
INTERNATIONAL FLAVORS&FRAGRA COM 459506101 239 2,343 SH   SOLE - 2,343 0 0
INTERNATIONAL FLAVORS&FRAGRA COM 459506101 255 2,500 SH Put SOLE - 2,500 0 0
INTRA CELLULAR THERAPIES INC COM 46116X101 362 23,582 SH   SOLE - 23,582 0 0
INVACARE CORP NOTE 4.500% 6/0 461203AH4 930 1,000,000 PRN   SOLE - 1,000,000 0 0
INVESCO DYNAMIC CR OPPORTUNI COM 46132R104 786 98,449 SH   SOLE - 98,449 0 0
INVESCO MORTGAGE CAPITAL INC COM 46131B100 1,054 309,112 SH   SOLE - 309,112 0 0
INVESCO SR INCOME TR COM 46131H107 1,124 349,134 SH   SOLE - 349,134 0 0
IONIS PHARMACEUTICALS INC COM 462222100 241 5,100 SH Put SOLE - 5,100 0 0
IQIYI INC SPONSORED ADS 46267X108 5,029 282,600 SH Put SOLE - 282,600 0 0
IRONWOOD PHARMACEUTICALS INC DBCV 2.250% 6/1 46333XAD0 7,459 7,044,000 PRN   SOLE - 7,044,000 0 0
ISHARES TR 20 YR TR BD ETF 464287432 16,861 102,200 SH Put SOLE - 102,200 0 0
ISHARES TR 20 YR TR BD ETF 464287432 3,837 23,256 SH   SOLE - 23,256 0 0
ISHARES TR BARCLAYS 7 10 YR 464287440 2,733 22,500 SH   SOLE - 22,500 0 0
ISHARES TR CHINA LG-CAP ETF 464287184 23 600 SH   SOLE - 600 0 0
ISHARES TR IBOXX HI YD ETF 464288513 1,541 20,000 SH   SOLE - 20,000 0 0
ISHARES TR IBOXX HI YD ETF 464288513 385 5,000 SH Call SOLE - 5,000 0 0
ISHARES TR IBOXX INV CP ETF 464287242 4,570 37,000 SH Put SOLE - 37,000 0 0
ISHARES TR IBOXX INV CP ETF 464287242 2,470 20,000 SH   SOLE - 20,000 0 0
ISHARES TR TIPS BD ETF 464287176 160 1,360 SH   SOLE - 1,360 0 0
ISIS PHARMACEUTICALS INC DEL NOTE 1.000%11/1 464337AJ3 7,639 7,500,000 PRN   SOLE - 7,500,000 0 0
JAPAN SMALLER CAPITALIZATION COM 47109U104 308 43,631 SH   SOLE - 43,631 0 0
JAZZ INVESTMENTS I LTD NOTE 1.875% 8/1 472145AB7 60 63,000 PRN   SOLE - 63,000 0 0
JOHNSON & JOHNSON COM 478160104 433 3,300 SH   SOLE - 3,300 0 0
JOHNSON & JOHNSON COM 478160104 2,820 21,500 SH Put SOLE - 21,500 0 0
JOYY INC ADS REPSTG COM A 46591M109 533 10,000 SH Put SOLE - 10,000 0 0
JOYY INC ADS REPSTG COM A 46591M109 29 540 SH   SOLE - 540 0 0
KAIXIN AUTO HLDGS SHS G5223X100 121 140,661 SH   SOLE - 140,661 0 0
KALA PHARMACEUTICALS INC COM 483119103 266 30,215 SH   SOLE - 30,215 0 0
KALA PHARMACEUTICALS INC COM 483119103 308 35,000 SH Call SOLE - 35,000 0 0
KALEYRA INC *W EXP 12/12/202 483379111 18 20,000 SH   SOLE - 20,000 0 0
KARYOPHARM THERAPEUTICS INC COM 48576U106 832 43,300 SH Call SOLE - 43,300 0 0
KARYOPHARM THERAPEUTICS INC COM 48576U106 240 12,500 SH Put SOLE - 12,500 0 0
KARYOPHARM THERAPEUTICS INC NOTE 3.000%10/1 48576UAA4 4,337 3,000,000 PRN   SOLE - 3,000,000 0 0
KEMET CORP COM NEW 488360207 816 33,800 SH Call SOLE - 33,800 0 0
KONTOOR BRANDS INC COM 50050N103 251 13,100 SH   SOLE - 13,100 0 0
KOREA FD COM NEW 500634209 372 16,647 SH   SOLE - 16,647 0 0
KRAFT HEINZ CO COM 500754106 884 35,700 SH Put SOLE - 35,700 0 0
KRAFT HEINZ CO COM 500754106 369 14,930 SH   SOLE - 14,930 0 0
LANDCADIA HLDGS II INC *W EXP 05/09/202 51476X113 4 10,516 SH   SOLE - 10,516 0 0
LATTICE SEMICONDUCTOR CORP COM 518415104 244 13,700 SH   SOLE - 13,700 0 0
LEGACY ACQUISITION CORP *W EXP 11/30/202 524643111 3 11,900 SH   SOLE - 11,900 0 0
LEGG MASON INC COM 524901105 1,656 33,900 SH   SOLE - 33,900 0 0
LEGG MASON INC COM 524901105 518 10,600 SH Put SOLE - 10,600 0 0
LEISURE ACQUISITION CORP *W EXP 12/05/201 52539T115 4 25,200 SH   SOLE - 25,200 0 0
LENNAR CORP CL A 526057104 76 2,000 SH   SOLE - 2,000 0 0
LENNAR CORP CL B 526057302 868 30,017 SH   SOLE - 30,017 0 0
LIBERTY BROADBAND CORP COM SER A 530307107 1,339 12,511 SH   SOLE - 12,511 0 0
LIBERTY BROADBAND CORP COM SER C 530307305 1,780 16,075 SH   SOLE - 16,075 0 0
LIBERTY GLOBAL PLC SHS CL A G5480U104 296 17,956 SH   SOLE - 17,956 0 0
LIBERTY GLOBAL PLC SHS CL B G5480U112 156 9,194 SH   SOLE - 9,194 0 0
LIBERTY GLOBAL PLC SHS CL C G5480U120 373 23,771 SH   SOLE - 23,771 0 0
LIBERTY MEDIA CORP DEB 3.500% 1/1 530715AN1 25,791 36,500,000 PRN   SOLE - 36,500,000 0 0
LIBERTY MEDIA CORP DEL COM A BRAVES GRP 531229706 138 7,079 SH   SOLE - 7,079 0 0
LIBERTY MEDIA CORP DEL COM A SIRIUSXM 531229409 15,510 489,434 SH   SOLE - 489,434 0 0
LIBERTY MEDIA CORP DEL COM B SIRIUSXM 531229508 1,902 60,912 SH   SOLE - 60,912 0 0
LIBERTY MEDIA CORP DEL COM C SIRIUSXM 531229607 199 6,295 SH   SOLE - 6,295 0 0
LIBERTY MEDIA CORP DEL COM SER A FRMLA 531229870 887 34,347 SH   SOLE - 34,347 0 0
LIBERTY MEDIA CORP DEL NOTE 1.000% 1/3 531229AF9 3,773 4,000,000 PRN   SOLE - 4,000,000 0 0
LIBERTY TRIPADVISOR HLDGS IN COM SER A 531465102 20 11,068 SH   SOLE - 11,068 0 0
LIBERTY TRIPADVISOR HLDGS IN COM SER B 531465201 15 3,610 SH   SOLE - 3,610 0 0
LIGAND PHARMACEUTICALS INC NOTE 0.750% 5/1 53220KAF5 830 1,000,000 PRN   SOLE - 1,000,000 0 0
LILLY ELI & CO COM 532457108 1,305 9,400 SH Call SOLE - 9,400 0 0
LIVE NATION ENTERTAINMENT IN COM 538034109 1,846 40,600 SH Put SOLE - 40,600 0 0
LIVE NATION ENTERTAINMENT IN COM 538034109 227 5,000 SH Call SOLE - 5,000 0 0
LIVE NATION ENTERTAINMENT IN NOTE 2.500% 3/1 538034AQ2 10,291 10,948,000 PRN   SOLE - 10,948,000 0 0
LUCKIN COFFEE INC SPONSORED ADS 54951L109 68 2,500 SH   SOLE - 2,500 0 0
LUCKIN COFFEE INC SPONSORED ADS 54951L109 534 19,600 SH Put SOLE - 19,600 0 0
LUMENTUM HLDGS INC COM 55024U109 3 39 SH   SOLE - 39 0 0
LUMENTUM HLDGS INC NOTE 0.250% 3/1 55024UAB5 15,319 11,233,000 PRN   SOLE - 11,233,000 0 0
MACQUARIE GLOBAL INFRASTRUCT COM 55608D101 1,509 97,404 SH   SOLE - 97,404 0 0
MADISON SQUARE GARDEN CO NEW CL A 55825T103 278 1,312 SH   SOLE - 1,312 0 0
MARRIOTT INTL INC NEW CL A 571903202 1,646 22,000 SH Put SOLE - 22,000 0 0
MARRIOTT INTL INC NEW CL A 571903202 472 6,310 SH   SOLE - 6,310 0 0
MARRIOTT VACTINS WORLDWID CO NOTE 1.500% 9/1 57164YAB3 3,762 4,759,000 PRN   SOLE - 4,759,000 0 0
MATCH GROUP INC COM 57665R106 1,320 20,000 SH Put SOLE - 20,000 0 0
MCDONALDS CORP COM 580135101 132 800 SH   SOLE - 800 0 0
MCDONALDS CORP COM 580135101 165 1,000 SH Put SOLE - 1,000 0 0
MCKESSON CORP COM 58155Q103 271 2,000 SH   SOLE - 2,000 0 0
MELLANOX TECHNOLOGIES LTD SHS M51363113 413 3,400 SH   SOLE - 3,400 0 0
MELLANOX TECHNOLOGIES LTD SHS M51363113 4,562 37,600 SH Call SOLE - 37,600 0 0
MELLANOX TECHNOLOGIES LTD SHS M51363113 1,213 10,000 SH Put SOLE - 10,000 0 0
MENLO THERAPEUTICS INC COM 586858102 2 708 SH Call SOLE - 708 0 0
MENLO THERAPEUTICS INC COM 586858102 120 44,905 SH   SOLE - 44,905 0 0
MERCK & CO. INC COM 58933Y105 769 10,000 SH Put SOLE - 10,000 0 0
MERCK & CO. INC COM 58933Y105 60 782 SH   SOLE - 782 0 0
MEREO BIOPHARMA GROUP PLC ADS 589492107 78 74,773 SH   SOLE - 74,773 0 0
MESA LABS INC NOTE 1.375% 8/1 59064RAA7 4,560 4,500,000 PRN   SOLE - 4,500,000 0 0
MGM RESORTS INTERNATIONAL COM 552953101 508 43,089 SH   SOLE - 43,089 0 0
MGM RESORTS INTERNATIONAL COM 552953101 474 40,200 SH Put SOLE - 40,200 0 0
MICROCHIP TECHNOLOGY INC COM 595017104 678 10,000 SH Put SOLE - 10,000 0 0
MICROCHIP TECHNOLOGY INC NOTE 1.625% 2/1 595017AD6 14,178 9,879,000 PRN   SOLE - 9,879,000 0 0
MICROCHIP TECHNOLOGY INC NOTE 1.625% 2/1 595017AF1 2,054 2,000,000 PRN   SOLE - 2,000,000 0 0
MIRATI THERAPEUTICS INC COM 60468T105 1,845 24,000 SH Call SOLE - 24,000 0 0
MODERNA INC COM 60770K107 627 20,900 SH Call SOLE - 20,900 0 0
MODERNA INC COM 60770K107 306 10,226 SH   SOLE - 10,226 0 0
MOHAWK INDS INC COM 608190104 955 12,520 SH   SOLE - 12,520 0 0
MONGODB INC NOTE 0.750% 6/1 60937PAB2 31,926 15,481,000 PRN   SOLE - 15,481,000 0 0
MORGAN STANLEY INDIA INVS FD COM 61745C105 210 16,373 SH   SOLE - 16,373 0 0
MUDRICK CAP ACQUISITION CORP *W EXP 02/12/202 624745113 10 27,900 SH   SOLE - 27,900 0 0
MVC CAPITAL INC COM 553829102 185 42,387 SH   SOLE - 42,387 0 0
MYOKARDIA INC COM 62857M105 2,635 56,200 SH Put SOLE - 56,200 0 0
MYOKARDIA INC COM 62857M105 2,007 42,800 SH Call SOLE - 42,800 0 0
MYOKARDIA INC COM 62857M105 386 8,235 SH   SOLE - 8,235 0 0
NABORS INDUSTRIES LTD 6% PFD CNV SR A G6359F129 80 22,539 SH   SOLE - 22,539 0 0
NETFLIX INC COM 64110L106 2,817 7,500 SH Call SOLE - 7,500 0 0
NETFLIX INC COM 64110L106 3,381 9,000 SH Put SOLE - 9,000 0 0
NEUROCRINE BIOSCIENCES INC COM 64125C109 9 100 SH Put SOLE - 100 0 0
NEUROCRINE BIOSCIENCES INC NOTE 2.250% 5/1 64125CAD1 8,745 6,842,000 PRN   SOLE - 6,842,000 0 0
NEW GERMANY FD INC COM 644465106 460 39,627 SH   SOLE - 39,627 0 0
NEW IRELAND FD INC COM 645673104 1,747 283,208 SH   SOLE - 283,208 0 0
NEWPARK RES INC NOTE 4.000%12/0 651718AE8 5,925 7,950,000 PRN   SOLE - 7,950,000 0 0
NEXPOINT STRATEGIC OPORTUNT COM NEW 65340G205 1,661 200,996 SH   SOLE - 200,996 0 0
NEXTERA ENERGY INC COM 65339F101 497 2,065 SH   SOLE - 2,065 0 0
NEXTERA ENERGY INC UNIT 09/01/2022S 65339F796 247 5,000 SH   SOLE - 5,000 0 0
NIO INC SPON ADS 62914V106 913 328,510 SH   SOLE - 328,510 0 0
NIO INC SPON ADS 62914V106 221 79,600 SH Call SOLE - 79,600 0 0
NIO INC SPON ADS 62914V106 364 131,000 SH Put SOLE - 131,000 0 0
NUVASIVE INC COM 670704105 588 11,600 SH Call SOLE - 11,600 0 0
NUVASIVE INC NOTE 2.250% 3/1 670704AG0 19,357 18,483,000 PRN   SOLE - 18,483,000 0 0
NUVEEN GLOBAL HIGH INCOME FD SHS 67075G103 411 36,759 SH   SOLE - 36,759 0 0
NUVEEN NEW JERSEY QULT MUN F COM 67069Y102 237 17,624 SH   SOLE - 17,624 0 0
NUVEEN REAL ASSET INCOME & G COM 67074Y105 358 36,265 SH   SOLE - 36,265 0 0
OCULAR THERAPEUTIX INC COM 67576A100 6 1,180 SH   SOLE - 1,180 0 0
OCULAR THERAPEUTIX INC COM 67576A100 441 89,000 SH Call SOLE - 89,000 0 0
OFFICE PPTYS INCOME TR COM SHS BEN INT 67623C109 2,283 83,803 SH   SOLE - 83,803 0 0
OI SA SPONSORED ADR NE 670851500 292 664,241 SH   SOLE - 664,241 0 0
OKTA INC NOTE 0.250% 2/1 679295AB1 23,211 9,085,000 PRN   SOLE - 9,085,000 0 0
OMEROS CORP COM 682143102 819 61,200 SH Put SOLE - 61,200 0 0
OMEROS CORP NOTE 6.250%11/1 682143AE2 3,559 4,000,000 PRN   SOLE - 4,000,000 0 0
OMNOVA SOLUTIONS INC COM 682129101 1,153 113,744 SH   SOLE - 113,744 0 0
ON SEMICONDUCTOR CORP COM 682189105 995 80,000 SH Put SOLE - 80,000 0 0
ON SEMICONDUCTOR CORP NOTE 1.000%12/0 682189AK1 7,446 7,500,000 PRN   SOLE - 7,500,000 0 0
ONCOSEC MED INC COM 68234L306 54 42,258 SH   SOLE - 42,258 0 0
OSI SYSTEMS INC NOTE 1.250% 9/0 671044AD7 3,585 3,800,000 PRN   SOLE - 3,800,000 0 0
OTONOMY INC COM 68906L105 150 75,960 SH   SOLE - 75,960 0 0
OTONOMY INC COM 68906L105 1 300 SH Call SOLE - 300 0 0
PDC ENERGY INC COM 69327R101 31 5,000 SH Call SOLE - 5,000 0 0
PDC ENERGY INC NOTE 1.125% 9/1 69327RAD3 1,199 1,460,000 PRN   SOLE - 1,460,000 0 0
PENNANTPARK FLOATING RATE CA COM 70806A106 466 95,954 SH   SOLE - 95,954 0 0
PENSARE ACQUISITION CORP *W EXP 07/27/202 70957E113 1 15,000 SH   SOLE - 15,000 0 0
PERSPECTA INC COM 715347100 182 10,000 SH Put SOLE - 10,000 0 0
PERSPECTA INC COM 715347100 1,093 59,931 SH   SOLE - 59,931 0 0
PG&E CORP COM 69331C108 5,864 652,305 SH   SOLE - 652,305 0 0
PG&E CORP COM 69331C108 432 48,000 SH Call SOLE - 48,000 0 0
PG&E CORP COM 69331C108 3,852 428,300 SH Put SOLE - 428,300 0 0
PHUNWARE INC *W EXP 12/26/202 71948P118 28 40,011 SH   SOLE - 40,011 0 0
PHUNWARE INC COM 71948P100 14 20,191 SH   SOLE - 20,191 0 0
PIMCO INCOME STRATEGY FD II COM 72201J104 195 25,755 SH   SOLE - 25,755 0 0
PRICELINE GRP INC NOTE 0.350% 6/1 741503AS5 8,897 8,000,000 PRN   SOLE - 8,000,000 0 0
PROFICIENT ALPHA ACQUSTN COR *W EXP 04/30/202 74317H113 1 25,000 SH   SOLE - 25,000 0 0
PROFICIENT ALPHA ACQUSTN COR RIGHT 04/30/2026 74317H121 10 1,000 SH   SOLE - 1,000 0 0
PROGENICS PHARMACEUTICALS IN COM 743187106 1,333 350,672 SH   SOLE - 350,672 0 0
PTC THERAPEUTICS INC COM 69366J200 27 596 SH   SOLE - 596 0 0
PTC THERAPEUTICS INC COM 69366J200 892 20,000 SH Put SOLE - 20,000 0 0
QAD INC CL B 74727D207 1,489 59,558 SH   SOLE - 59,558 0 0
QTS RLTY TR INC 6.50% CON PFD B 74736A301 5,484 41,671 SH   SOLE - 41,671 0 0
QURATE RETAIL INC COM SER A 74915M100 468 76,663 SH   SOLE - 76,663 0 0
QURATE RETAIL INC COM SER B 74915M209 317 52,110 SH   SOLE - 52,110 0 0
RA PHARMACEUTICALS INC COM 74933V108 4,272 88,973 SH   SOLE - 88,973 0 0
RA PHARMACEUTICALS INC COM 74933V108 557 11,600 SH Call SOLE - 11,600 0 0
RA PHARMACEUTICALS INC COM 74933V108 6,274 130,700 SH Put SOLE - 130,700 0 0
RADIUS HEALTH INC NOTE 3.000% 9/0 750469AA6 2,848 4,000,000 PRN   SOLE - 4,000,000 0 0
RAMBUS INC DEL NOTE 1.375% 2/0 750917AG1 5,650 5,795,000 PRN   SOLE - 5,795,000 0 0
RANGE RES CORP COM 75281A109 104 45,500 SH Call SOLE - 45,500 0 0
RAPID7 INC NOTE 1.250% 8/0 753422AB0 2,435 2,000,000 PRN   SOLE - 2,000,000 0 0
REDWOOD TR INC COM 758075402 385 76,000 SH   SOLE - 76,000 0 0
REGENERON PHARMACEUTICALS COM 75886F107 1,953 4,000 SH Put SOLE - 4,000 0 0
REGENERON PHARMACEUTICALS COM 75886F107 1,953 4,000 SH Call SOLE - 4,000 0 0
RENREN INC SPONSORED ADS 759892300 8 10,220 SH   SOLE - 10,220 0 0
RESIDEO TECHNOLOGIES INC COM 76118Y104 342 70,639 SH   SOLE - 70,639 0 0
RESTORATION HARDWARE HLDGS I DBCV 7/1 761283AC4 4,187 4,000,000 PRN   SOLE - 4,000,000 0 0
RETROPHIN INC NOTE 2.500% 9/1 761299AB2 2,292 3,036,000 PRN   SOLE - 3,036,000 0 0
RH COM 74967X103 1,608 16,000 SH Call SOLE - 16,000 0 0
RH COM 74967X103 6,189 61,600 SH Put SOLE - 61,600 0 0
RH NOTE 6/1 74967XAA1 12,885 16,100,000 PRN   SOLE - 16,100,000 0 0
RIVERNORTH OPPORTUNITIES FD COM 76881Y109 741 59,664 SH   SOLE - 59,664 0 0
RMG ACQUISITION CORP *W EXP 02/21/202 749641114 79 127,697 SH   SOLE - 127,697 0 0
RMG ACQUISITION CORP CL A 749641106 111 11,200 SH   SOLE - 11,200 0 0
RMG ACQUISITION CORP UNIT 99/99/9999 749641205 10 1,000 SH   SOLE - 1,000 0 0
RMR REAL ESTATE INCOME FD COM 76970B101 820 80,798 SH   SOLE - 80,798 0 0
ROSEHILL RES INC *W EXP 04/27/202 777385113 0 16,200 SH   SOLE - 16,200 0 0
ROYAL CARIBBEAN CRUISES LTD COM V7780T103 343 10,668 SH   SOLE - 10,668 0 0
ROYAL CARIBBEAN CRUISES LTD COM V7780T103 377 11,700 SH Call SOLE - 11,700 0 0
ROYAL CARIBBEAN CRUISES LTD COM V7780T103 563 17,500 SH Put SOLE - 17,500 0 0
ROYCE GLOBAL VALUE TR INC COM 78081T104 94 11,752 SH   SOLE - 11,752 0 0
ROYCE MICRO-CAP TR INC COM 780915104 68 12,226 SH   SOLE - 12,226 0 0
RPT REALTY SH BEN INT 74971D101 228 37,700 SH Put SOLE - 37,700 0 0
RYANAIR HOLDINGS PLC SPONSORED ADS 783513203 938 17,664 SH   SOLE - 17,664 0 0
SALIENT MIDSTREAM & MLP FD SH BEN INT 79471V105 107 30,822 SH   SOLE - 30,822 0 0
SANDISK CORP NOTE 0.500%10/1 80004CAF8 466 549,000 PRN   SOLE - 549,000 0 0
SAREPTA THERAPEUTICS INC COM 803607100 58 598 SH   SOLE - 598 0 0
SAREPTA THERAPEUTICS INC COM 803607100 598 6,100 SH Call SOLE - 6,100 0 0
SAREPTA THERAPEUTICS INC DBCV 1.500%11/1 803607AB6 3,415 2,235,000 PRN   SOLE - 2,235,000 0 0
SCORPIO TANKERS INC NOTE 3.000% 5/1 80918TAB5 4,855 5,909,000 PRN   SOLE - 5,909,000 0 0
SCORPIO TANKERS INC SHS Y7542C130 887 46,400 SH Put SOLE - 46,400 0 0
SEA LTD NOTE 2.250% 7/0 81141RAB6 10,087 4,350,000 PRN   SOLE - 4,350,000 0 0
SEATTLE GENETICS INC COM 812578102 346 3,000 SH Call SOLE - 3,000 0 0
SEATTLE GENETICS INC COM 812578102 462 4,000 SH Put SOLE - 4,000 0 0
SELECT SECTOR SPDR TR SBI INT-FINL 81369Y605 687 33,000 SH Call SOLE - 33,000 0 0
SEMPRA ENERGY 6% PFD CONV A 816851406 11,041 117,424 SH   SOLE - 117,424 0 0
SEMPRA ENERGY COM 816851109 1,134 10,032 SH   SOLE - 10,032 0 0
SEMPRA ENERGY COM 816851109 4,057 35,900 SH Put SOLE - 35,900 0 0
SERVICENOW INC NOTE 6/0 81762PAC6 4,910 2,295,000 PRN   SOLE - 2,295,000 0 0
SHIP FINANCE INTERNATIONAL L NOTE 5.750%10/1 G81075AF3 5,334 6,000,000 PRN   SOLE - 6,000,000 0 0
SIBANYE STILLWATER LTD SPONSORED ADR 82575P107 689 145,937 SH   SOLE - 145,937 0 0
SILICON LABORATORIES INC NOTE 1.375% 3/0 826919AB8 557 500,000 PRN   SOLE - 500,000 0 0
SILVER SPIKE ACQUISITION COR *W EXP 08/02/202 G8136L114 13 32,800 SH   SOLE - 32,800 0 0
SILVER SPIKE ACQUISITION COR CL A SHS G8136L106 49 5,005 SH   SOLE - 5,005 0 0
SIRIUS XM HLDGS INC COM 82968B103 654 132,336 SH   SOLE - 132,336 0 0
SIRIUS XM HLDGS INC COM 82968B103 98 19,900 SH Call SOLE - 19,900 0 0
SIRIUS XM HLDGS INC COM 82968B103 147 29,900 SH Put SOLE - 29,900 0 0
SMART GLOBAL HLDGS INC SHS G8232Y101 408 16,800 SH   SOLE - 16,800 0 0
SNAP INC CL A 83304A106 592 49,828 SH   SOLE - 49,828 0 0
SNAP INC CL A 83304A106 990 83,200 SH Put SOLE - 83,200 0 0
SOCKET MOBILE INC COM NEW 83368E200 61 55,858 SH   SOLE - 55,858 0 0
SOLARCITY CORP NOTE 12/0 83416TAE0 31,096 17,500,000 PRN   SOLE - 17,500,000 0 0
SPARTAN ENERGY ACQUISITION C *W EXP 08/27/202 846784122 23 45,430 SH   SOLE - 45,430 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 6,702 26,000 SH   SOLE - 26,000 0 0
SPECIAL OPPORTUNITIES FD INC COM 84741T104 2,078 218,700 SH   SOLE - 218,700 0 0
SPECIAL OPPORTUNITIES FD INC PFD CONV SE B 84741T302 1,517 62,610 SH   SOLE - 62,610 0 0
SPRINT CORPORATION COM 85207U105 522 60,500 SH   SOLE - 60,500 0 0
SPRINT CORPORATION COM 85207U105 93 10,800 SH Call SOLE - 10,800 0 0
SPRINT CORPORATION COM 85207U105 17 2,000 SH Put SOLE - 2,000 0 0
STANLEY BLACK & DECKER INC COM 854502101 1,000 10,000 SH Call SOLE - 10,000 0 0
STANLEY BLACK & DECKER INC UNIT 05/15/2020 854502887 1,612 22,016 SH   SOLE - 22,016 0 0
STARBUCKS CORP COM 855244109 3,258 49,552 SH   SOLE - 49,552 0 0
STARBUCKS CORP COM 855244109 5,232 79,600 SH Put SOLE - 79,600 0 0
SUNCOR ENERGY INC NEW COM 867224107 337 21,320 SH   SOLE - 21,320 0 0
SUPERNUS PHARMACEUTICALS INC COM 868459108 135 7,500 SH   SOLE - 7,500 0 0
SUPERNUS PHARMACEUTICALS INC COM 868459108 218 12,100 SH Put SOLE - 12,100 0 0
SWISS HELVETIA FD INC COM 870875101 3,431 493,670 SH   SOLE - 493,670 0 0
SWITCHBACK ENERGY ACQUISTN C *W EXP 07/25/202 87105M110 27 43,899 SH   SOLE - 43,899 0 0
SYNAPTICS INC NOTE 0.500% 6/1 87157DAD1 9,949 9,575,000 PRN   SOLE - 9,575,000 0 0
TAIWAN FD INC COM 874036106 1,451 88,201 SH   SOLE - 88,201 0 0
TAKEDA PHARMACEUTICAL CO LTD SPONSORED ADS 874060205 1,387 91,300 SH Put SOLE - 91,300 0 0
TAKEDA PHARMACEUTICAL CO LTD SPONSORED ADS 874060205 3,637 239,625 SH Call SOLE - 239,625 0 0
TAKEDA PHARMACEUTICAL CO LTD SPONSORED ADS 874060205 851 56,035 SH   SOLE - 56,035 0 0
TELADOC HEALTH INC COM 87918A105 155 1,000 SH Call SOLE - 1,000 0 0
TELADOC HEALTH INC COM 87918A105 775 5,000 SH Put SOLE - 5,000 0 0
TELADOC HEALTH INC NOTE 3.000%12/1 87918AAB1 16,746 4,746,000 PRN   SOLE - 4,746,000 0 0
TEMPLETON DRAGON FD INC COM 88018T101 481 28,182 SH   SOLE - 28,182 0 0
TENZING ACQUISITION CORP ORD SHS G8708A116 210 20,000 SH   SOLE - 20,000 0 0
TERADYNE INC COM 880770102 16 300 SH Put SOLE - 300 0 0
TERADYNE INC COM 880770102 5 87 SH   SOLE - 87 0 0
TERADYNE INC NOTE 1.250%12/1 880770AG7 3,801 2,120,000 PRN   SOLE - 2,120,000 0 0
TESLA INC COM 88160R101 65,657 125,300 SH Put SOLE - 125,300 0 0
TESLA INC COM 88160R101 196 375 SH   SOLE - 375 0 0
TESLA INC NOTE 2.375% 3/1 88160RAD3 21,381 12,425,000 PRN   SOLE - 12,425,000 0 0
THE CENTRAL AND EASTERN EU I COM 153436100 457 26,054 SH   SOLE - 26,054 0 0
THERAVANCE BIOPHARMA INC NOTE 3.250%11/0 88339KAA0 1,440 1,500,000 PRN   SOLE - 1,500,000 0 0
THERAVANCE INC NOTE 2.125% 1/1 88338TAB0 3,257 3,484,000 PRN   SOLE - 3,484,000 0 0
TIFFANY & CO NEW COM 886547108 1,450 11,200 SH Call SOLE - 11,200 0 0
TILRAY INC COM CL 2 88688T100 111 16,100 SH Call SOLE - 16,100 0 0
TILRAY INC COM CL 2 88688T100 809 117,500 SH Put SOLE - 117,500 0 0
TORTOISE ACQUISITION CORP *W EXP 03/04/202 89154L118 23 83,900 SH   SOLE - 83,900 0 0
TORTOISE ENERGY INDEPENDENC COM 89148K101 375 326,380 SH   SOLE - 326,380 0 0
TRANSDIGM GROUP INC COM 893641100 576 1,800 SH Call SOLE - 1,800 0 0
TRANSDIGM GROUP INC COM 893641100 928 2,900 SH Put SOLE - 2,900 0 0
TRANSOCEAN LTD REG SHS H8817H100 157 135,195 SH   SOLE - 135,195 0 0
TRIDENT ACQUISITIONS CORP *W EXP 05/09/202 89615T114 3 35,000 SH   SOLE - 35,000 0 0
TRILLIUM THERAPEUTICS INC COM NEW 89620X506 758 187,600 SH Call SOLE - 187,600 0 0
TRILLIUM THERAPEUTICS INC COM NEW 89620X506 25 6,169 SH   SOLE - 6,169 0 0
TRIP COM GROUP LTD ADS 89677Q107 151 6,419 SH   SOLE - 6,419 0 0
TRIP COM GROUP LTD ADS 89677Q107 1,582 67,500 SH Put SOLE - 67,500 0 0
TRUIST FINL CORP COM 89832Q109 728 23,618 SH   SOLE - 23,618 0 0
TURQUOISE HILL RES LTD COM 900435108 14 37,601 SH   SOLE - 37,601 0 0
TWILIO INC NOTE 0.250% 6/0 90138FAB8 13,132 9,408,000 PRN   SOLE - 9,408,000 0 0
TWO HBRS INVT CORP COM NEW 90187B408 426 112,000 SH   SOLE - 112,000 0 0
UNISYS CORP NOTE 5.500% 3/0 909214BS6 10,405 7,520,000 PRN   SOLE - 7,520,000 0 0
UNITED TECHNOLOGIES CORP COM 913017109 5,906 62,598 SH   SOLE - 62,598 0 0
VERSO CORP CL A 92531L207 386 34,200 SH Put SOLE - 34,200 0 0
VERSO CORP CL A 92531L207 399 35,333 SH   SOLE - 35,333 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 595 2,500 SH Call SOLE - 2,500 0 0
VERTEX PHARMACEUTICALS INC COM 92532F100 143 600 SH   SOLE - 600 0 0
VIACOMCBS INC CL A 92556H107 41 2,313 SH   SOLE - 2,313 0 0
VIACOMCBS INC CL B 92556H206 158 11,271 SH   SOLE - 11,271 0 0
VIKING THERAPEUTICS INC COM 92686J106 178 38,000 SH   SOLE - 38,000 0 0
VIKING THERAPEUTICS INC COM 92686J106 183 39,200 SH Call SOLE - 39,200 0 0
VIKING THERAPEUTICS INC COM 92686J106 140 30,000 SH Put SOLE - 30,000 0 0
VISA INC COM CL A 92826C839 1,370 8,500 SH Put SOLE - 8,500 0 0
VISA INC COM CL A 92826C839 806 5,000 SH Call SOLE - 5,000 0 0
VIVINT SMART HOME INC *W EXP 01/17/202 928542117 118 84,856 SH   SOLE - 84,856 0 0
VOYA NAT RES EQUITY INCOME F COM 92913C106 61 28,031 SH   SOLE - 28,031 0 0
WALMART INC COM 931142103 2,159 19,006 SH   SOLE - 19,006 0 0
WALMART INC COM 931142103 3,590 31,600 SH Call SOLE - 31,600 0 0
WALMART INC COM 931142103 8,134 71,600 SH Put SOLE - 71,600 0 0
WATSCO INC CL B CONV 942622101 621 3,971 SH   SOLE - 3,971 0 0
WAYFAIR INC CL A 94419L101 604 11,300 SH Put SOLE - 11,300 0 0
WAYFAIR INC NOTE 0.375% 9/0 94419LAB7 1,166 1,500,000 PRN   SOLE - 1,500,000 0 0
WAYFAIR INC NOTE 1.125%11/0 94419LAD3 2,765 4,000,000 PRN   SOLE - 4,000,000 0 0
WESTERN ASSET EMERGING MKTS COM 95766A101 358 34,020 SH   SOLE - 34,020 0 0
WESTERN ASSET HIGH INCM FD I COM 95766J102 103 20,571 SH   SOLE - 20,571 0 0
WESTERN AST INFL LKD OPP & I COM 95766R104 160 16,719 SH   SOLE - 16,719 0 0
WINTRUST FINL CORP COM 97650W108 361 10,984 SH   SOLE - 10,984 0 0
WPX ENERGY INC COM 98212B103 84 27,500 SH Call SOLE - 27,500 0 0
WRIGHT MED GROUP N V NOTE 2.250%11/1 98236JAB4 14,685 10,663,000 PRN   SOLE - 10,663,000 0 0
XBIOTECH INC COM 98400H102 141 13,325 SH   SOLE - 13,325 0 0
XBIOTECH INC COM 98400H102 5 500 SH Put SOLE - 500 0 0
ZENDESK INC NOTE 0.250% 3/1 98936JAB7 18,060 15,217,000 PRN   SOLE - 15,217,000 0 0
ZILLOW GROUP INC CL A 98954M101 476 14,017 SH   SOLE - 14,017 0 0
ZILLOW GROUP INC CL C CAP STK 98954M200 3,015 83,700 SH Put SOLE - 83,700 0 0
ZILLOW GROUP INC CL C CAP STK 98954M200 132 3,668 SH   SOLE - 3,668 0 0
ZILLOW GROUP INC CL C CAP STK 98954M200 180 5,000 SH Call SOLE - 5,000 0 0
ZILLOW GROUP INC NOTE 1.500% 7/0 98954MAC5 1,279 1,510,000 PRN   SOLE - 1,510,000 0 0
ZILLOW GROUP INC NOTE 2.000%12/0 98954MAB7 3,771 3,750,000 PRN   SOLE - 3,750,000 0 0
ZIONS BANCORPORATION N A *W EXP 05/21/202 989701115 1,766 5,850,674 SH   SOLE - 5,850,674 0 0
ZIONS BANCORPORATION N A COM 989701107 1,360 50,800 SH Call SOLE - 50,800 0 0
ZIONS BANCORPORATION N A COM 989701107 292 10,900 SH Put SOLE - 10,900 0 0
ZOGENIX INC COM NEW 98978L204 161 6,500 SH Put SOLE - 6,500 0 0
ZOGENIX INC COM NEW 98978L204 450 18,200 SH Call SOLE - 18,200 0 0