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  <cik0:AgreementsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember">&lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 3 &amp;#8211; AGREEMENTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Management Fee &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will pay the Sponsor a Management Fee, monthly in arrears, in an amount equal to 0.95%&amp;nbsp;per annum of its average daily NAV of such Fund. For the first year of the New VIX Funds' operations, the Sponsor will waive the Management Fee to the extent that such amounts cumulatively exceeded the offering costs incurred by the New VIX Funds. The Management Fee will be paid in consideration of the Sponsor's services as commodity pool operator and commodity trading advisor, and for managing the business and affairs of the New VIX Funds. From the Management Fee, the Sponsor will pay the fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent and the licensors for the Commodity Index Funds (Dow Jones&amp;nbsp;&amp;amp; Company, Inc. and UBS Securities LLC, together, "DJ-UBS"), the routine operational, administrative and other ordinary expenses of each New VIX Fund, and the normal and expected expenses incurred in connection with the continuous offering of Shares of each New VIX Fund after the commencement of its trading operations, including, but not limited to, expenses such as ongoing SEC registration fees not exceeding 0.021%&amp;nbsp;per annum of the NAV of a New VIX Fund and Financial Industry Regulatory Authority ("FINRA") filing fees. Each New VIX will incur and pay, its non-recurring and unusual fees and expenses. No other management fee is paid by the New VIX Funds. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Brokerage Commissions and Fees &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will pay its respective brokerage commissions, including applicable exchange fees, National Futures Association ("NFA") fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities for each New VIX Fund's investment in U.S. Commodity Futures Trading Commission regulated investments. Brokerage commissions on futures contracts will be recognized on a half-turn basis. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Administrator &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor and the Trust, for itself and on behalf of each New VIX Fund, has appointed Brown Brothers Harriman&amp;nbsp;&amp;amp; Co. ("BBH&amp;amp;Co.") as the Administrator of the New VIX Funds, and the Sponsor, the Trust, on its own behalf and on behalf of each New VIX Fund, and BBH&amp;amp;Co. have entered into an Administrative Agency Agreement (the "Administration Agreement") in connection therewith. Pursuant to the terms of the Administration Agreement and under the supervision and direction of the Sponsor and the Trust, BBH&amp;amp;Co. will prepare and file certain regulatory filings on behalf of the New VIX Funds. BBH&amp;amp;Co. may also perform other services for the New VIX Funds pursuant to the Administration Agreement as mutually agreed upon by the Sponsor, the Trust and BBH&amp;amp;Co. from time to time. Pursuant to the terms of the Administration Agreement, BBH&amp;amp;Co. will also serve as the Transfer Agent of the New VIX Funds. The Administrator's fees will be paid on behalf of the New VIX Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Custodian &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;BBH&amp;amp;Co. will serve as Custodian of the New VIX Funds, and the Trust, on its own behalf and on behalf of each New VIX Fund, and BBH&amp;amp;Co. have entered into a Custodian Agreement in connection therewith. Pursuant to the terms of the Custodian Agreement, BBH&amp;amp;Co. will be responsible for the holding and safekeeping of assets delivered to it by the New VIX Funds, and performing various administrative duties in accordance with instructions delivered to BBH&amp;amp;Co. by the New VIX Funds. The Custodian's fees are paid on behalf of the New VIX Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Distributor &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;SEI Investments Distribution Co. ("SEI") will serve as Distributor of the Shares and will assist the Sponsor and the Administrator with certain functions and duties relating to distribution and marketing, including taking creation and redemption orders, consulting with the marketing staff of the Sponsor and its affiliates with respect to compliance with the requirements of FINRA and/or the NFA in connection with marketing efforts, and reviewing and filing of marketing materials with FINRA and/or the NFA. SEI will retain all marketing materials separately for each New VIX Fund, at c/o SEI, One Freedom Valley Drive, Oaks, PA 19456. The Sponsor, on behalf of each New VIX Fund, will enter into a Distribution Services Agreement with SEI. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Routine Operational, Administrative and Other Ordinary Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor will pay all of the routine operational, administrative and other ordinary expenses of each New VIX Fund generally, as determined by the Sponsor including, but not limited to, fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent, license, accounting and auditing fees and expenses, tax preparation expenses, non extraordinary legal fees, usual SEC registration fees, FINRA filing fees, non extraordinary individual K-1 preparation and mailing fees, and report preparation and mailing expenses. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px; font-size: 1px;"&gt;&amp;nbsp;&lt;/p&gt;

&lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Non-Recurring Fees and Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will pay all non-recurring and unusual fees and expenses, if any, as determined by the Sponsor. Non-recurring fees and expenses are fees and expenses such as legal claims and liabilities, litigation costs or indemnification or other material expenses which are not currently anticipated obligations of the New VIX Funds. Such fees and expenses are those that are non-recurring, unexpected or unusual in nature.&lt;/font&gt;&lt;/p&gt;</cik0:AgreementsTextBlock>
  <cik0:AgreementsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember">&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 3 &amp;#8211; AGREEMENTS &lt;/b&gt;&lt;/font&gt;

&lt;div&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Management Fee &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will pay the Sponsor a Management Fee, monthly in arrears, in an amount equal to 0.95%&amp;nbsp;per annum of its average daily NAV of such Fund. For the first year of the New Natural Gas Funds' operations, the Sponsor will waive the Management Fee to the extent that such amounts cumulatively exceeded the offering costs incurred by the New Natural Gas Funds. The Management Fee will be paid in consideration of the Sponsor's services as commodity pool operator and commodity trading advisor, and for managing the business and affairs of the New Natural Gas Funds. From the Management Fee, the Sponsor will pay the fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent and the licensors for the Commodity Index Funds (Dow Jones&amp;nbsp;&amp;amp; Company, Inc. and UBS Securities LLC, together, "DJ-UBS"), the routine operational, administrative and other ordinary expenses of each New Natural Gas Fund, and the normal and expected expenses incurred in connection with the continuous offering of Shares of each New Natural Gas Fund after the commencement of its trading operations, including, but not limited to, expenses such as ongoing SEC registration fees not exceeding 0.021%&amp;nbsp;per annum of the NAV of a New Natural Gas Fund and Financial Industry Regulatory Authority ("FINRA") filing fees. Each New Natural Gas Fund will incur and pay, its non-recurring and unusual fees and expenses. No other management fee is paid by the New Natural Gas Funds. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Brokerage Commissions and Fees &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will pay its respective brokerage commissions, including applicable exchange fees, National Futures Association ("NFA") fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities for each New Natural Gas Fund's investment in U.S. Commodity Futures Trading Commission regulated investments. Brokerage commissions on futures contracts will be recognized on a half-turn basis. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Administrator &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor and the Trust, for itself and on behalf of each New Natural Gas Fund, has appointed Brown Brothers Harriman&amp;nbsp;&amp;amp; Co. ("BBH&amp;amp;Co.") as the Administrator of the New Natural Gas Funds, and the Sponsor, the Trust, on its own behalf and on behalf of each New Natural Gas Fund, and BBH&amp;amp;Co. have entered into an Administrative Agency Agreement (the "Administration Agreement") in connection therewith. Pursuant to the terms of the Administration Agreement and under the supervision and direction of the Sponsor and the Trust, BBH&amp;amp;Co. will prepare and file certain regulatory filings on behalf of the New Natural Gas Funds. BBH&amp;amp;Co. may also perform other services for the New Natural Gas Funds pursuant to the Administration Agreement as mutually agreed upon by the Sponsor, the Trust and BBH&amp;amp;Co. from time to time. Pursuant to the terms of the Administration Agreement, BBH&amp;amp;Co. will also serve as the Transfer Agent of the New Natural Gas Funds. The Administrator's fees will be paid on behalf of the New Natural Gas Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Custodian &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;BBH&amp;amp;Co. will serve as Custodian of the New Natural Gas Funds, and the Trust, on its own behalf and on behalf of each New Natural Gas Fund, and BBH&amp;amp;Co. have entered into a Custodian Agreement in connection therewith. Pursuant to the terms of the Custodian Agreement, BBH&amp;amp;Co. will be responsible for the holding and safekeeping of assets delivered to it by the New Natural Gas Funds, and performing various administrative duties in accordance with instructions delivered to BBH&amp;amp;Co. by the New Natural Gas Funds. The Custodian's fees are paid on behalf of the New Natural Gas Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Distributor &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;SEI Investments Distribution Co. ("SEI") will serve as Distributor of the Shares and will assist the Sponsor and the Administrator with certain functions and duties relating to distribution and marketing, including taking creation and redemption orders, consulting with the marketing staff of the Sponsor and its affiliates with respect to compliance with the requirements of FINRA and/or the NFA in connection with marketing efforts, and reviewing and filing of marketing materials with FINRA and/or the NFA. SEI will retain all marketing materials separately for each New Natural Gas Fund, at c/o SEI, One Freedom Valley Drive, Oaks, PA 19456. The Sponsor, on behalf of each New Natural Gas Fund, will enter into a Distribution Services Agreement with SEI. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Routine Operational, Administrative and Other Ordinary Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor will pay all of the routine operational, administrative and other ordinary expenses of each New Natural Gas Fund generally, as determined by the Sponsor including, but not limited to, fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent, license, accounting and auditing fees and expenses, tax preparation expenses, non extraordinary legal fees, usual SEC registration fees, FINRA filing fees, non extraordinary individual K-1 preparation and mailing fees, and report preparation and mailing expenses. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px; font-size: 1px;"&gt;&amp;nbsp;&lt;/p&gt;

&lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Non-Recurring Fees and Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will pay all non-recurring and unusual fees and expenses, if any, as determined by the Sponsor. Non-recurring fees and expenses are fees and expenses such as legal claims and liabilities, litigation costs or indemnification or other material expenses which are not currently anticipated obligations of the New Natural Gas Funds. Such fees and expenses are those that are non-recurring, unexpected or unusual in nature.&lt;/font&gt;&lt;/p&gt;&lt;/div&gt;</cik0:AgreementsTextBlock>
  <cik0:AgreementsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember">&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 3 &amp;#8211; AGREEMENTS &lt;/b&gt;&lt;/font&gt;

&lt;div&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Management Fee &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will pay the Sponsor a Management Fee, monthly in arrears, in an amount equal to 0.95%&amp;nbsp;per annum of its average daily NAV of such Fund. For the first year of the New Natural Gas Funds' operations, the Sponsor will waive the Management Fee to the extent that such amounts cumulatively exceeded the offering costs incurred by the New Natural Gas Funds. The Management Fee will be paid in consideration of the Sponsor's services as commodity pool operator and commodity trading advisor, and for managing the business and affairs of the New Natural Gas Funds. From the Management Fee, the Sponsor will pay the fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent and the licensors for the Commodity Index Funds (Dow Jones&amp;nbsp;&amp;amp; Company, Inc. and UBS Securities LLC, together, "DJ-UBS"), the routine operational, administrative and other ordinary expenses of each New Natural Gas Fund, and the normal and expected expenses incurred in connection with the continuous offering of Shares of each New Natural Gas Fund after the commencement of its trading operations, including, but not limited to, expenses such as ongoing SEC registration fees not exceeding 0.021%&amp;nbsp;per annum of the NAV of a New Natural Gas Fund and Financial Industry Regulatory Authority ("FINRA") filing fees. Each New Natural Gas Fund will incur and pay, its non-recurring and unusual fees and expenses. No other management fee is paid by the New Natural Gas Funds. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Brokerage Commissions and Fees &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will pay its respective brokerage commissions, including applicable exchange fees, National Futures Association ("NFA") fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities for each New Natural Gas Fund's investment in U.S. Commodity Futures Trading Commission regulated investments. Brokerage commissions on futures contracts will be recognized on a half-turn basis. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Administrator &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor and the Trust, for itself and on behalf of each New Natural Gas Fund, has appointed Brown Brothers Harriman&amp;nbsp;&amp;amp; Co. ("BBH&amp;amp;Co.") as the Administrator of the New Natural Gas Funds, and the Sponsor, the Trust, on its own behalf and on behalf of each New Natural Gas Fund, and BBH&amp;amp;Co. have entered into an Administrative Agency Agreement (the "Administration Agreement") in connection therewith. Pursuant to the terms of the Administration Agreement and under the supervision and direction of the Sponsor and the Trust, BBH&amp;amp;Co. will prepare and file certain regulatory filings on behalf of the New Natural Gas Funds. BBH&amp;amp;Co. may also perform other services for the New Natural Gas Funds pursuant to the Administration Agreement as mutually agreed upon by the Sponsor, the Trust and BBH&amp;amp;Co. from time to time. Pursuant to the terms of the Administration Agreement, BBH&amp;amp;Co. will also serve as the Transfer Agent of the New Natural Gas Funds. The Administrator's fees will be paid on behalf of the New Natural Gas Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Custodian &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;BBH&amp;amp;Co. will serve as Custodian of the New Natural Gas Funds, and the Trust, on its own behalf and on behalf of each New Natural Gas Fund, and BBH&amp;amp;Co. have entered into a Custodian Agreement in connection therewith. Pursuant to the terms of the Custodian Agreement, BBH&amp;amp;Co. will be responsible for the holding and safekeeping of assets delivered to it by the New Natural Gas Funds, and performing various administrative duties in accordance with instructions delivered to BBH&amp;amp;Co. by the New Natural Gas Funds. The Custodian's fees are paid on behalf of the New Natural Gas Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Distributor &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;SEI Investments Distribution Co. ("SEI") will serve as Distributor of the Shares and will assist the Sponsor and the Administrator with certain functions and duties relating to distribution and marketing, including taking creation and redemption orders, consulting with the marketing staff of the Sponsor and its affiliates with respect to compliance with the requirements of FINRA and/or the NFA in connection with marketing efforts, and reviewing and filing of marketing materials with FINRA and/or the NFA. SEI will retain all marketing materials separately for each New Natural Gas Fund, at c/o SEI, One Freedom Valley Drive, Oaks, PA 19456. The Sponsor, on behalf of each New Natural Gas Fund, will enter into a Distribution Services Agreement with SEI. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Routine Operational, Administrative and Other Ordinary Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor will pay all of the routine operational, administrative and other ordinary expenses of each New Natural Gas Fund generally, as determined by the Sponsor including, but not limited to, fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent, license, accounting and auditing fees and expenses, tax preparation expenses, non extraordinary legal fees, usual SEC registration fees, FINRA filing fees, non extraordinary individual K-1 preparation and mailing fees, and report preparation and mailing expenses. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px; font-size: 1px;"&gt;&amp;nbsp;&lt;/p&gt;

&lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Non-Recurring Fees and Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will pay all non-recurring and unusual fees and expenses, if any, as determined by the Sponsor. Non-recurring fees and expenses are fees and expenses such as legal claims and liabilities, litigation costs or indemnification or other material expenses which are not currently anticipated obligations of the New Natural Gas Funds. Such fees and expenses are those that are non-recurring, unexpected or unusual in nature.&lt;/font&gt;&lt;/p&gt;&lt;/div&gt;</cik0:AgreementsTextBlock>
  <cik0:AgreementsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember">&lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 3 &amp;#8211; AGREEMENTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Management Fee &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will pay the Sponsor a Management Fee, monthly in arrears, in an amount equal to 0.95%&amp;nbsp;per annum of its average daily NAV of such Fund. For the first year of the New VIX Funds' operations, the Sponsor will waive the Management Fee to the extent that such amounts cumulatively exceeded the offering costs incurred by the New VIX Funds. The Management Fee will be paid in consideration of the Sponsor's services as commodity pool operator and commodity trading advisor, and for managing the business and affairs of the New VIX Funds. From the Management Fee, the Sponsor will pay the fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent and the licensors for the Commodity Index Funds (Dow Jones&amp;nbsp;&amp;amp; Company, Inc. and UBS Securities LLC, together, "DJ-UBS"), the routine operational, administrative and other ordinary expenses of each New VIX Fund, and the normal and expected expenses incurred in connection with the continuous offering of Shares of each New VIX Fund after the commencement of its trading operations, including, but not limited to, expenses such as ongoing SEC registration fees not exceeding 0.021%&amp;nbsp;per annum of the NAV of a New VIX Fund and Financial Industry Regulatory Authority ("FINRA") filing fees. Each New VIX will incur and pay, its non-recurring and unusual fees and expenses. No other management fee is paid by the New VIX Funds. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Brokerage Commissions and Fees &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will pay its respective brokerage commissions, including applicable exchange fees, National Futures Association ("NFA") fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities for each New VIX Fund's investment in U.S. Commodity Futures Trading Commission regulated investments. Brokerage commissions on futures contracts will be recognized on a half-turn basis. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Administrator &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor and the Trust, for itself and on behalf of each New VIX Fund, has appointed Brown Brothers Harriman&amp;nbsp;&amp;amp; Co. ("BBH&amp;amp;Co.") as the Administrator of the New VIX Funds, and the Sponsor, the Trust, on its own behalf and on behalf of each New VIX Fund, and BBH&amp;amp;Co. have entered into an Administrative Agency Agreement (the "Administration Agreement") in connection therewith. Pursuant to the terms of the Administration Agreement and under the supervision and direction of the Sponsor and the Trust, BBH&amp;amp;Co. will prepare and file certain regulatory filings on behalf of the New VIX Funds. BBH&amp;amp;Co. may also perform other services for the New VIX Funds pursuant to the Administration Agreement as mutually agreed upon by the Sponsor, the Trust and BBH&amp;amp;Co. from time to time. Pursuant to the terms of the Administration Agreement, BBH&amp;amp;Co. will also serve as the Transfer Agent of the New VIX Funds. The Administrator's fees will be paid on behalf of the New VIX Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Custodian &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;BBH&amp;amp;Co. will serve as Custodian of the New VIX Funds, and the Trust, on its own behalf and on behalf of each New VIX Fund, and BBH&amp;amp;Co. have entered into a Custodian Agreement in connection therewith. Pursuant to the terms of the Custodian Agreement, BBH&amp;amp;Co. will be responsible for the holding and safekeeping of assets delivered to it by the New VIX Funds, and performing various administrative duties in accordance with instructions delivered to BBH&amp;amp;Co. by the New VIX Funds. The Custodian's fees are paid on behalf of the New VIX Funds by the Sponsor. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;The Distributor &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;SEI Investments Distribution Co. ("SEI") will serve as Distributor of the Shares and will assist the Sponsor and the Administrator with certain functions and duties relating to distribution and marketing, including taking creation and redemption orders, consulting with the marketing staff of the Sponsor and its affiliates with respect to compliance with the requirements of FINRA and/or the NFA in connection with marketing efforts, and reviewing and filing of marketing materials with FINRA and/or the NFA. SEI will retain all marketing materials separately for each New VIX Fund, at c/o SEI, One Freedom Valley Drive, Oaks, PA 19456. The Sponsor, on behalf of each New VIX Fund, will enter into a Distribution Services Agreement with SEI. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Routine Operational, Administrative and Other Ordinary Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The Sponsor will pay all of the routine operational, administrative and other ordinary expenses of each New VIX Fund generally, as determined by the Sponsor including, but not limited to, fees and expenses of the Administrator, Custodian, Distributor, Transfer Agent, license, accounting and auditing fees and expenses, tax preparation expenses, non extraordinary legal fees, usual SEC registration fees, FINRA filing fees, non extraordinary individual K-1 preparation and mailing fees, and report preparation and mailing expenses. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px; font-size: 1px;"&gt;&amp;nbsp;&lt;/p&gt;

&lt;p style="margin-top: 0px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Non-Recurring Fees and Expenses &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will pay all non-recurring and unusual fees and expenses, if any, as determined by the Sponsor. Non-recurring fees and expenses are fees and expenses such as legal claims and liabilities, litigation costs or indemnification or other material expenses which are not currently anticipated obligations of the New VIX Funds. Such fees and expenses are those that are non-recurring, unexpected or unusual in nature.&lt;/font&gt;&lt;/p&gt;</cik0:AgreementsTextBlock>
  <cik0:CreationAndRedemptionOfCreationUnitsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 5 &amp;#8211; CREATION AND REDEMPTION OF CREATION UNITS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will issue and redeem Shares from time to time, but only in one or more Creation Units. A Creation Unit is a block of 50,000 Shares of a New VIX Fund. Creation Units may be created or redeemed only by Authorized Participants. Authorized Participants may sell the Shares included in the Creation Units they purchase from the New VIX Funds to other investors in the secondary market. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Except when aggregated in Creation Units, the Shares are not redeemable securities. Retail investors, therefore, generally will not be able to purchase or redeem Shares directly from or with a New VIX Fund. Rather, most retail investors will purchase or sell Shares in the secondary market with the assistance of a broker.&lt;/font&gt;&lt;/p&gt;</cik0:CreationAndRedemptionOfCreationUnitsTextBlock>
  <cik0:CreationAndRedemptionOfCreationUnitsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 5 &amp;#8211; CREATION AND REDEMPTION OF CREATION UNITS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will issue and redeem Shares from time to time, but only in one or more Creation Units. A Creation Unit is a block of 50,000 Shares of a New Natural Gas Fund. Creation Units may be created or redeemed only by Authorized Participants. Authorized Participants may sell the Shares included in the Creation Units they purchase from the New Natural Gas Funds to other investors in the secondary market. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Except when aggregated in Creation Units, the Shares are not redeemable securities. Retail investors, therefore, generally will not be able to purchase or redeem Shares directly from or with a New Natural Gas Fund. Rather, most retail investors will purchase or sell Shares in the secondary market with the assistance of a broker. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Authorized Participants are required to pay a variable transaction fee of up to 0.10% of the value of the Creation Unit that is purchased or redeemed unless the transaction fee is waived or otherwise adjusted by the Sponsor.&lt;/font&gt;&lt;/p&gt;</cik0:CreationAndRedemptionOfCreationUnitsTextBlock>
  <cik0:CreationAndRedemptionOfCreationUnitsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember">&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 5 &amp;#8211; CREATION AND REDEMPTION OF CREATION UNITS &lt;/b&gt;&lt;/font&gt;

&lt;div&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund will issue and redeem Shares from time to time, but only in one or more Creation Units. A Creation Unit is a block of 50,000 Shares of a New Natural Gas Fund. Creation Units may be created or redeemed only by Authorized Participants. Authorized Participants may sell the Shares included in the Creation Units they purchase from the New Natural Gas Funds to other investors in the secondary market. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Except when aggregated in Creation Units, the Shares are not redeemable securities. Retail investors, therefore, generally will not be able to purchase or redeem Shares directly from or with a New Natural Gas Fund. Rather, most retail investors will purchase or sell Shares in the secondary market with the assistance of a broker. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Authorized Participants are required to pay a variable transaction fee of up to 0.10% of the value of the Creation Unit that is purchased or redeemed unless the transaction fee is waived or otherwise adjusted by the Sponsor.&lt;/font&gt;&lt;/p&gt;&lt;/div&gt;</cik0:CreationAndRedemptionOfCreationUnitsTextBlock>
  <cik0:CreationAndRedemptionOfCreationUnitsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 5 &amp;#8211; CREATION AND REDEMPTION OF CREATION UNITS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund will issue and redeem Shares from time to time, but only in one or more Creation Units. A Creation Unit is a block of 50,000 Shares of a New VIX Fund. Creation Units may be created or redeemed only by Authorized Participants. Authorized Participants may sell the Shares included in the Creation Units they purchase from the New VIX Funds to other investors in the secondary market. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Except when aggregated in Creation Units, the Shares are not redeemable securities. Retail investors, therefore, generally will not be able to purchase or redeem Shares directly from or with a New VIX Fund. Rather, most retail investors will purchase or sell Shares in the secondary market with the assistance of a broker.&lt;/font&gt;&lt;/p&gt;</cik0:CreationAndRedemptionOfCreationUnitsTextBlock>
  <cik0:OfferingCosts contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">28764</cik0:OfferingCosts>
  <cik0:OfferingCosts contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">26624</cik0:OfferingCosts>
  <cik0:OfferingCosts contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">26624</cik0:OfferingCosts>
  <cik0:OfferingCosts contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">28764</cik0:OfferingCosts>
  <cik0:OfferingCostsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 4 &amp;#8211; OFFERING COSTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Offering costs on the New VIX Funds will be amortized over a twelve month period on a straight-line basis. The Sponsor will not collect any fee in the first year of operation of each New VIX Fund in an amount equal to the offering fees. The Sponsor will reimburse each New VIX Fund to the extent that its offering costs exceed 0.95% of its average daily NAV for the first year of operations. At April&amp;nbsp;5, 2011, payable for offering costs are reflected in the Statement of Financial Condition for each New VIX Fund. &lt;/font&gt;&lt;/p&gt;</cik0:OfferingCostsTextBlock>
  <cik0:OfferingCostsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 4 &amp;#8211; OFFERING COSTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Offering costs on the New Geared Funds will be amortized over a twelve month period on a straight-line basis. The Sponsor will not collect any fee in the first year of operation of each New Natural Gas Fund in an amount equal to the offering fees. The Sponsor will reimburse each New Natural Gas Fund to the extent that its offering costs exceed 0.95% of its average daily NAV for the first year of operations. At April&amp;nbsp;5, 2011, payable for offering costs are reflected in the Statement of Financial Condition for each New Natural Gas Fund.&lt;/font&gt;&lt;/p&gt;</cik0:OfferingCostsTextBlock>
  <cik0:OfferingCostsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 4 &amp;#8211; OFFERING COSTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Offering costs on the New Geared Funds will be amortized over a twelve month period on a straight-line basis. The Sponsor will not collect any fee in the first year of operation of each New Natural Gas Fund in an amount equal to the offering fees. The Sponsor will reimburse each New Natural Gas Fund to the extent that its offering costs exceed 0.95% of its average daily NAV for the first year of operations. At April&amp;nbsp;5, 2011, payable for offering costs are reflected in the Statement of Financial Condition for each New Natural Gas Fund.&lt;/font&gt;&lt;/p&gt;</cik0:OfferingCostsTextBlock>
  <cik0:OfferingCostsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 4 &amp;#8211; OFFERING COSTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Offering costs on the New VIX Funds will be amortized over a twelve month period on a straight-line basis. The Sponsor will not collect any fee in the first year of operation of each New VIX Fund in an amount equal to the offering fees. The Sponsor will reimburse each New VIX Fund to the extent that its offering costs exceed 0.95% of its average daily NAV for the first year of operations. At April&amp;nbsp;5, 2011, payable for offering costs are reflected in the Statement of Financial Condition for each New VIX Fund. &lt;/font&gt;&lt;/p&gt;</cik0:OfferingCostsTextBlock>
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  <cik0:PayableForOfferingCosts contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">28764</cik0:PayableForOfferingCosts>
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  <dei:EntityRegistrantName contextRef="Duration_4_4_2011_To_4_5_2011">ProShares Trust II</dei:EntityRegistrantName>
  <us-gaap:Assets contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">29164</us-gaap:Assets>
  <us-gaap:Assets contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">27024</us-gaap:Assets>
  <us-gaap:Assets contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">27024</us-gaap:Assets>
  <us-gaap:Assets contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">29164</us-gaap:Assets>
  <us-gaap:Cash contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">400</us-gaap:Cash>
  <us-gaap:Cash contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">400</us-gaap:Cash>
  <us-gaap:Cash contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">400</us-gaap:Cash>
  <us-gaap:Cash contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">400</us-gaap:Cash>
  <us-gaap:Liabilities contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">28764</us-gaap:Liabilities>
  <us-gaap:Liabilities contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">26624</us-gaap:Liabilities>
  <us-gaap:Liabilities contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">26624</us-gaap:Liabilities>
  <us-gaap:Liabilities contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">28764</us-gaap:Liabilities>
  <us-gaap:LiabilitiesAndStockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">29164</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:LiabilitiesAndStockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">27024</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:LiabilitiesAndStockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">27024</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:LiabilitiesAndStockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">29164</us-gaap:LiabilitiesAndStockholdersEquity>
  <us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember">&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 1&amp;nbsp;&amp;#8211; ORGANIZATION &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;ProShares Trust II (the "Trust") was organized as a Delaware statutory trust on October&amp;nbsp;9, 2007 and offers or expects to offer from time-to-time common units of beneficial interest (the "Shares") in each of its twenty-four series (each, a "Fund", and collectively, the "Funds"). The twenty-four separate series are: ProShares Ultra DJ-UBS Commodity, ProShares UltraShort DJ-UBS Commodity, ProShares Ultra DJ-UBS Crude Oil, ProShares UltraShort DJ-UBS Crude Oil, ProShares Ultra DJ-UBS Natural Gas, ProShares Short DJ-UBS Natural Gas, ProShares UltraShort DJ-UBS Natural Gas, ProShares Short Gold, ProShares Ultra Gold, ProShares UltraShort Gold, ProShares Ultra Silver, ProShares UltraShort Silver, ProShares Ultra Euro, ProShares UltraShort Euro, ProShares Ultra Yen ProShares UltraShort Yen, ProShares Ultra VIX Short-Term Futures ETF, ProShares VIX Short-Term Futures ETF, ProShares Short VIX Short-Term Futures ETF, ProShares UltraShort VIX Short-Term Futures ETF, ProShares Ultra VIX Mid-Term Futures ETF, ProShares VIX Mid-Term Futures ETF, ProShares Short VIX Mid-Term Futures ETF and ProShares UltraShort VIX Mid-Term Futures ETF. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each of the following six Funds, ProShares Ultra VIX Short-Term Futures ETF, ProShares Short VIX Short-Term Futures ETF, ProShares UltraShort VIX Short-Term Futures ETF, ProShares Ultra VIX Mid-Term Futures ETF, ProShares Short VIX Mid-Term Futures ETF and ProShares UltraShort VIX Mid-Term Futures ETF (each a "New VIX Fund", collectively, the "New VIX Funds"), have Statements of Financial Conditions presented in this Prospectus and had no operations prior to April&amp;nbsp;5, 2011 other than matters relating to their organization, the registration of each series under the Securities Act of 1933, as amended, and the sale and issuance to ProShare Capital Management LLC (the "Sponsor") of ownership shares at an aggregate purchase price of $400 in each of the six New VIX Funds. Offerings of Shares of those New VIX Funds have not commenced as of the date of this report. The other eighteen Funds are not the subject of this report. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each "Ultra" New VIX Fund seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the daily performance of its corresponding benchmark. Each "Short" New VIX Fund seeks daily investment results (before fees and expenses) that correspond to the inverse (opposite) of the daily performance of its corresponding benchmark. Each "UltraShort" New VIX Fund seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the inverse (opposite) of the daily performance of its corresponding benchmark. Each New VIX Fund intends to obtain exposure to its corresponding index by investing in futures contracts based on the Chicago Board Options Exchange ("CBOE") Volatility Index (the "VIX"). &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The New VIX Funds do not seek to achieve their stated investment objective over a period of time greater than one day because mathematical compounding prevents the New VIX Funds from achieving such results. Accordingly, results over periods of time greater than one day should not be expected to be a simple multiple (+200, -100 or -200%) of the period return of the corresponding benchmark and will likely differ significantly. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The current benchmark for "Short-Term" New VIX Funds is the S&amp;amp;P 500 Short-Term Index (the "Short-Term Index") and the current benchmark for "Mid-Term" New VIX Funds is the S&amp;amp;P 500 Mid-Term Index (the "Mid-Term Index"). &lt;/font&gt;&lt;/p&gt;</us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock>
  <us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember">&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 1 &amp;#8211; ORGANIZATION &lt;/b&gt;&lt;/font&gt;

&lt;div&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;ProShares Trust II (the "Trust") was organized as a Delaware statutory trust on October&amp;nbsp;9, 2007 and offers or expects to offer from time-to-time common units of beneficial interest (the "Shares") in each of its twenty-four series (each, a "Fund", and collectively, the "Funds"). The twenty-four separate series are: ProShares Ultra DJ-UBS Commodity, ProShares UltraShort DJ-UBS Commodity, ProShares Ultra DJ-UBS Crude Oil, ProShares UltraShort DJ-UBS Crude Oil, ProShares Ultra DJ-UBS Natural Gas, ProShares Short DJ-UBS Natural Gas, ProShares UltraShort DJ-UBS Natural Gas, ProShares Short Gold, ProShares Ultra Gold, ProShares UltraShort Gold, ProShares Ultra Silver, ProShares UltraShort Silver, ProShares Ultra Euro, ProShares UltraShort Euro, ProShares Ultra Yen ProShares UltraShort Yen, ProShares Ultra VIX Short-Term Futures ETF, ProShares VIX Short-Term Futures ETF, ProShares Short VIX Short-Term Futures ETF, ProShares UltraShort VIX Short-Term Futures ETF, ProShares Ultra VIX Mid-Term Futures ETF, ProShares VIX Mid-Term Futures ETF, ProShares Short VIX Mid-Term Futures ETF and ProShares UltraShort VIX Mid-Term Futures&amp;nbsp;ETF. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each of the following two Funds, ProShares Ultra DJ-UBS Natural Gas and ProShares UltraShort DJ-UBS Natural Gas (each a "New Natural Gas Fund", and collectively the "New Natural Gas Funds"), have Statements of Financial Conditions presented in this Prospectus and had no operations prior to April&amp;nbsp;5, 2011 other than matters relating to their organization, the registration of each series under the Securities Act of 1933, as amended, and the sale and issuance to ProShare Capital Management LLC (the "Sponsor") of ownership shares at an aggregate purchase price of $400 in each of the two New Natural Gas Funds. Offerings of Shares of the New Natural Gas Funds have not commenced as of the date of this report. The other twenty-two Funds are not the subject of this report. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;ProShares Ultra DJ-UBS Natural Gas seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the daily performance of its corresponding benchmark. ProShares UltraShort DJ-UBS Natural Gas seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the inverse (opposite) of the daily performance of its corresponding benchmark. Each New Natural Gas Fund intends to obtain exposure to its corresponding index by investing in futures contracts based on the New York Mercantile Exchange (the "NYMEX") natural gas index. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The New Natural Gas Funds do not seek to achieve their stated investment objective over a period of time greater than one day because mathematical compounding prevents the New Natural Gas Funds from achieving such results. Accordingly, results over periods of time greater than one day should not be expected to be a simple multiple (+200 or -200%) of the period return of the corresponding benchmark and will likely differ significantly.&lt;/font&gt;&lt;/p&gt;&lt;/div&gt;</us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock>
  <us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember">&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 1 &amp;#8211; ORGANIZATION &lt;/b&gt;&lt;/font&gt;

&lt;div&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;ProShares Trust II (the "Trust") was organized as a Delaware statutory trust on October&amp;nbsp;9, 2007 and offers or expects to offer from time-to-time common units of beneficial interest (the "Shares") in each of its twenty-four series (each, a "Fund", and collectively, the "Funds"). The twenty-four separate series are: ProShares Ultra DJ-UBS Commodity, ProShares UltraShort DJ-UBS Commodity, ProShares Ultra DJ-UBS Crude Oil, ProShares UltraShort DJ-UBS Crude Oil, ProShares Ultra DJ-UBS Natural Gas, ProShares Short DJ-UBS Natural Gas, ProShares UltraShort DJ-UBS Natural Gas, ProShares Short Gold, ProShares Ultra Gold, ProShares UltraShort Gold, ProShares Ultra Silver, ProShares UltraShort Silver, ProShares Ultra Euro, ProShares UltraShort Euro, ProShares Ultra Yen ProShares UltraShort Yen, ProShares Ultra VIX Short-Term Futures ETF, ProShares VIX Short-Term Futures ETF, ProShares Short VIX Short-Term Futures ETF, ProShares UltraShort VIX Short-Term Futures ETF, ProShares Ultra VIX Mid-Term Futures ETF, ProShares VIX Mid-Term Futures ETF, ProShares Short VIX Mid-Term Futures ETF and ProShares UltraShort VIX Mid-Term Futures&amp;nbsp;ETF. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each of the following two Funds, ProShares Ultra DJ-UBS Natural Gas and ProShares UltraShort DJ-UBS Natural Gas (each a "New Natural Gas Fund", and collectively the "New Natural Gas Funds"), have Statements of Financial Conditions presented in this Prospectus and had no operations prior to April&amp;nbsp;5, 2011 other than matters relating to their organization, the registration of each series under the Securities Act of 1933, as amended, and the sale and issuance to ProShare Capital Management LLC (the "Sponsor") of ownership shares at an aggregate purchase price of $400 in each of the two New Natural Gas Funds. Offerings of Shares of the New Natural Gas Funds have not commenced as of the date of this report. The other twenty-two Funds are not the subject of this report. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;ProShares Ultra DJ-UBS Natural Gas seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the daily performance of its corresponding benchmark. ProShares UltraShort DJ-UBS Natural Gas seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the inverse (opposite) of the daily performance of its corresponding benchmark. Each New Natural Gas Fund intends to obtain exposure to its corresponding index by investing in futures contracts based on the New York Mercantile Exchange (the "NYMEX") natural gas index. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The New Natural Gas Funds do not seek to achieve their stated investment objective over a period of time greater than one day because mathematical compounding prevents the New Natural Gas Funds from achieving such results. Accordingly, results over periods of time greater than one day should not be expected to be a simple multiple (+200 or -200%) of the period return of the corresponding benchmark and will likely differ significantly.&lt;/font&gt;&lt;/p&gt;&lt;/div&gt;</us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock>
  <us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember">&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 1&amp;nbsp;&amp;#8211; ORGANIZATION &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;ProShares Trust II (the "Trust") was organized as a Delaware statutory trust on October&amp;nbsp;9, 2007 and offers or expects to offer from time-to-time common units of beneficial interest (the "Shares") in each of its twenty-four series (each, a "Fund", and collectively, the "Funds"). The twenty-four separate series are: ProShares Ultra DJ-UBS Commodity, ProShares UltraShort DJ-UBS Commodity, ProShares Ultra DJ-UBS Crude Oil, ProShares UltraShort DJ-UBS Crude Oil, ProShares Ultra DJ-UBS Natural Gas, ProShares Short DJ-UBS Natural Gas, ProShares UltraShort DJ-UBS Natural Gas, ProShares Short Gold, ProShares Ultra Gold, ProShares UltraShort Gold, ProShares Ultra Silver, ProShares UltraShort Silver, ProShares Ultra Euro, ProShares UltraShort Euro, ProShares Ultra Yen ProShares UltraShort Yen, ProShares Ultra VIX Short-Term Futures ETF, ProShares VIX Short-Term Futures ETF, ProShares Short VIX Short-Term Futures ETF, ProShares UltraShort VIX Short-Term Futures ETF, ProShares Ultra VIX Mid-Term Futures ETF, ProShares VIX Mid-Term Futures ETF, ProShares Short VIX Mid-Term Futures ETF and ProShares UltraShort VIX Mid-Term Futures ETF. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each of the following six Funds, ProShares Ultra VIX Short-Term Futures ETF, ProShares Short VIX Short-Term Futures ETF, ProShares UltraShort VIX Short-Term Futures ETF, ProShares Ultra VIX Mid-Term Futures ETF, ProShares Short VIX Mid-Term Futures ETF and ProShares UltraShort VIX Mid-Term Futures ETF (each a "New VIX Fund", collectively, the "New VIX Funds"), have Statements of Financial Conditions presented in this Prospectus and had no operations prior to April&amp;nbsp;5, 2011 other than matters relating to their organization, the registration of each series under the Securities Act of 1933, as amended, and the sale and issuance to ProShare Capital Management LLC (the "Sponsor") of ownership shares at an aggregate purchase price of $400 in each of the six New VIX Funds. Offerings of Shares of those New VIX Funds have not commenced as of the date of this report. The other eighteen Funds are not the subject of this report. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each "Ultra" New VIX Fund seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the daily performance of its corresponding benchmark. Each "Short" New VIX Fund seeks daily investment results (before fees and expenses) that correspond to the inverse (opposite) of the daily performance of its corresponding benchmark. Each "UltraShort" New VIX Fund seeks daily investment results (before fees and expenses) that correspond to twice (200%)&amp;nbsp;the inverse (opposite) of the daily performance of its corresponding benchmark. Each New VIX Fund intends to obtain exposure to its corresponding index by investing in futures contracts based on the Chicago Board Options Exchange ("CBOE") Volatility Index (the "VIX"). &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The New VIX Funds do not seek to achieve their stated investment objective over a period of time greater than one day because mathematical compounding prevents the New VIX Funds from achieving such results. Accordingly, results over periods of time greater than one day should not be expected to be a simple multiple (+200, -100 or -200%) of the period return of the corresponding benchmark and will likely differ significantly. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The current benchmark for "Short-Term" New VIX Funds is the S&amp;amp;P 500 Short-Term Index (the "Short-Term Index") and the current benchmark for "Mid-Term" New VIX Funds is the S&amp;amp;P 500 Mid-Term Index (the "Mid-Term Index"). &lt;/font&gt;&lt;/p&gt;</us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock>
  <us-gaap:ScheduleOfSubsequentEventsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 6 &amp;#8211; SUBSEQUENT EVENTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Management has evaluated the possibility of subsequent events existing in the New Natural Gas Funds' financial statements through the date the financial statements were issued. Management has determined that there are no material events that would require disclosure in its New Natural Gas Funds' financial statements through this date.&lt;/font&gt;&lt;/p&gt;</us-gaap:ScheduleOfSubsequentEventsTextBlock>
  <us-gaap:ScheduleOfSubsequentEventsTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 6 &amp;#8211; SUBSEQUENT EVENTS &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Management has evaluated the possibility of subsequent events existing in the New Natural Gas Funds' financial statements through the date the financial statements were issued. Management has determined that there are no material events that would require disclosure in its New Natural Gas Funds' financial statements through this date.&lt;/font&gt;&lt;/p&gt;</us-gaap:ScheduleOfSubsequentEventsTextBlock>
  <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 2&amp;nbsp;&amp;#8211; SIGNIFICANT ACCOUNTING POLICIES &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The following is a summary of significant accounting policies followed by each New VIX Fund in preparation of its financial statements. These policies are in conformity with accounting principles generally accepted in the United States of America ("GAAP"). &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Use of Estimates&amp;nbsp;&amp;amp; Indemnifications &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and disclosures in these financial statements. Actual results could differ from those estimates. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;In the normal course of business, the Trust enters into contracts that contain a variety of representations which provide general indemnifications. The Trust's maximum exposure under these arrangements cannot be known; however, the Trust expects any risk of loss to be remote. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Federal Income Tax &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund is registered as a series of a Delaware statutory trust and will be treated as a partnership for U.S. federal income tax purposes. Accordingly, no New VIX Fund expects to incur U.S. federal income tax liability; rather, each beneficial owner of a New VIX Fund's Shares will be required to take into account its allocable share of its Fund's income, gain, loss, deductions and other items for its Fund's taxable year ending with or within the beneficial owner's taxable year.&lt;/font&gt;&lt;/p&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
  <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 2 &amp;#8211; SIGNIFICANT ACCOUNTING POLICIES &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The following is a summary of significant accounting policies followed by each New Natural Gas Fund in preparation of its financial statements. These policies are in conformity with accounting principles generally accepted in the United States of America ("GAAP"). &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Use of Estimates&amp;nbsp;&amp;amp; Indemnifications &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and disclosures in these financial statements. Actual results could differ from those estimates. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;In the normal course of business, the Trust enters into contracts that contain a variety of representations which provide general indemnifications. The Trust's maximum exposure under these arrangements cannot be known; however, the Trust expects any risk of loss to be remote. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Federal Income Tax &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund is registered as a series of a Delaware statutory trust and will be treated as a partnership for U.S. federal income tax purposes. Accordingly, no New Natural Gas Fund expects to incur U.S. federal income tax liability; rather, each beneficial owner of a New Natural Gas Fund's Shares will be required to take into account its allocable share of its Fund's income, gain, loss, deductions and other items for its Fund's taxable year ending with or within the beneficial owner's taxable year.&lt;/font&gt;&lt;/p&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
  <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 2 &amp;#8211; SIGNIFICANT ACCOUNTING POLICIES &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The following is a summary of significant accounting policies followed by each New Natural Gas Fund in preparation of its financial statements. These policies are in conformity with accounting principles generally accepted in the United States of America ("GAAP"). &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Use of Estimates&amp;nbsp;&amp;amp; Indemnifications &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and disclosures in these financial statements. Actual results could differ from those estimates. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;In the normal course of business, the Trust enters into contracts that contain a variety of representations which provide general indemnifications. The Trust's maximum exposure under these arrangements cannot be known; however, the Trust expects any risk of loss to be remote. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Federal Income Tax &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New Natural Gas Fund is registered as a series of a Delaware statutory trust and will be treated as a partnership for U.S. federal income tax purposes. Accordingly, no New Natural Gas Fund expects to incur U.S. federal income tax liability; rather, each beneficial owner of a New Natural Gas Fund's Shares will be required to take into account its allocable share of its Fund's income, gain, loss, deductions and other items for its Fund's taxable year ending with or within the beneficial owner's taxable year.&lt;/font&gt;&lt;/p&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
  <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="Duration_4_4_2011_To_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember">&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;NOTE 2&amp;nbsp;&amp;#8211; SIGNIFICANT ACCOUNTING POLICIES &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The following is a summary of significant accounting policies followed by each New VIX Fund in preparation of its financial statements. These policies are in conformity with accounting principles generally accepted in the United States of America ("GAAP"). &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Use of Estimates&amp;nbsp;&amp;amp; Indemnifications &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and disclosures in these financial statements. Actual results could differ from those estimates. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 12px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;In the normal course of business, the Trust enters into contracts that contain a variety of representations which provide general indemnifications. The Trust's maximum exposure under these arrangements cannot be known; however, the Trust expects any risk of loss to be remote. &lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 18px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;&lt;b&gt;Federal Income Tax &lt;/b&gt;&lt;/font&gt;&lt;/p&gt;

&lt;p style="margin-top: 6px; margin-bottom: 0px;"&gt;&lt;font style="font-family: Times New Roman;" class="_mt" size="2"&gt;Each New VIX Fund is registered as a series of a Delaware statutory trust and will be treated as a partnership for U.S. federal income tax purposes. Accordingly, no New VIX Fund expects to incur U.S. federal income tax liability; rather, each beneficial owner of a New VIX Fund's Shares will be required to take into account its allocable share of its Fund's income, gain, loss, deductions and other items for its Fund's taxable year ending with or within the beneficial owner's taxable year.&lt;/font&gt;&lt;/p&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
  <us-gaap:StockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesShortVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">400</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">400</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraShortDjUbsNaturalGasMember" unitRef="Unit1" decimals="0">400</us-gaap:StockholdersEquity>
  <us-gaap:StockholdersEquity contextRef="As_Of_4_5_2011_us-gaap_StatementBusinessSegmentsAxis_cik0_ProsharesUltraVixShortTermFuturesEtfMember" unitRef="Unit1" decimals="0">400</us-gaap:StockholdersEquity>
  <!--Footnote Section-->
</xbrl>
