v2.4.0.6

STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) | 3 Months Ended
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Mar. 31, 2013
ProShares UltraShort DJ-UBS Crude Oil [Member] |
Addition, shares | 2,350,000
Redemption, shares | 700,000
Net addition (redemption), shares | 1,650,000
ProShares UltraShort DJ-UBS Natural Gas [Member] |
Addition, shares | 950,000
Redemption, shares | 50,000
Net addition (redemption), shares | 900,000
ProShares UltraShort Gold [Member] |
Addition, shares | 250,000
Redemption, shares | 150,000
Net addition (redemption), shares | 100,000
ProShares UltraShort Silver [Member] |
Addition, shares | 600,000
Redemption, shares | 600,000
Net addition (redemption), shares | 0
ProShares UltraShort Euro [Member] |
Addition, shares | 2,100,000
Redemption, shares | 4,000,000
Net addition (redemption), shares | (1,900,000)
ProShares UltraShort Yen [Member] |
Addition, shares | 1,100,000
Redemption, shares | 1,150,000
Net addition (redemption), shares | (50,000)
ProShares Ultra DJ-UBS Commodity [Member] |
Redemption, shares | 50,000
ProShares Ultra DJ-UBS Crude Oil [Member] |
Addition, shares | 850,000
Redemption, shares | 7,000,000
Net addition (redemption), shares | (6,150,000)
ProShares Ultra DJ-UBS Natural Gas [Member] |
Addition, shares | 1,000,000
Redemption, shares | 1,850,000
Net addition (redemption), shares | (850,000)
ProShares Ultra Gold [Member] |
Addition, shares | 100,000
ProShares Ultra Silver [Member] |
Addition, shares | 2,150,000
Redemption, shares | 150,000
Net addition (redemption), shares | 2,000,000
ProShares Ultra Yen [Member] |
Addition, shares | 50,000
Redemption, shares | 50,000
Net addition (redemption), shares | 0
ProShares VIX Short-Term Futures ETF [Member] |
Addition, shares | 15,800,000
Redemption, shares | 3,825,000
Net addition (redemption), shares | 11,975,000
ProShares VIX Mid-Term Futures ETF [Member] |
Addition, shares | 1,825,000
Redemption, shares | 325,000
Net addition (redemption), shares | 1,500,000
ProShares Ultra VIX Short-Term Futures ETF [Member] |
Addition, shares | 62,100,000
Redemption, shares | 20,850,000
Net addition (redemption), shares | 41,250,000
ProShares Short VIX Short-Term Futures ETF [Member] |
Addition, shares | 1,400,000
Redemption, shares | 1,900,000
Net addition (redemption), shares | (500,000)
ProShares Trust II [Member] |
Addition, shares | 92,625,000
Redemption, shares | 42,650,015
Net addition (redemption), shares | 49,974,985

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- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section B -Paragraph 11A -Chapter 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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