v3.10.0.1

Schedule of Investments - Futures Contracts Purchased (Detail)

6 Months Ended

Jun. 30, 2018

USD ($)

Contract

ProShares Ultra VIX Short-Term Futures ETF [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ 264,480

^[1]

ProShares Ultra VIX Short-Term Futures ETF [Member] | Futures Contracts Purchased [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ 39,797,429

ProShares Ultra VIX Short-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires July 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

15,203

Notional Amount at Value

$ 243,628,075

Unrealized Appreciation (Depreciation)

$ 32,168,348

ProShares Ultra VIX Short-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires August 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

11,063

Notional Amount at Value

$ 181,156,625

Unrealized Appreciation (Depreciation)

$ 7,629,081

ProShares UltraPro 3x Crude Oil ETF [Member] | Futures Contracts Purchased [Member] | WTI Crude Oil NYMEX, Expires September 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

1,690

Notional Amount at Value

$ 122,457,400

Unrealized Appreciation (Depreciation)

9,905,484

ProShares Ultra Silver [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ (14,148,711)

^[1]

ProShares Ultra Silver [Member] | Futures Contracts Purchased [Member] | Silver Futures - COMEX, expires September 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

2

Notional Amount at Value

$ 161,980

Unrealized Appreciation (Depreciation)

(7,970)

ProShares VIX Short-Term Futures ETF [Member] | Futures Contracts Purchased [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ 9,426,460

ProShares VIX Short-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires July 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

4,084

Notional Amount at Value

$ 65,446,100

Unrealized Appreciation (Depreciation)

$ 7,838,941

ProShares VIX Short-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires August 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

2,971

Notional Amount at Value

$ 48,650,125

Unrealized Appreciation (Depreciation)

1,587,519

ProShares Ultra Bloomberg Crude Oil [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ 82,428,870

^[2]

ProShares Ultra Bloomberg Crude Oil [Member] | Futures Contracts Purchased [Member] | WTI Crude Oil NYMEX, Expires September 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

2,687

Notional Amount at Value

$ 194,700,020

Unrealized Appreciation (Depreciation)

$ 17,289,103

ProShares Ultra Bloomberg Natural Gas [Member] | Futures Contracts Purchased [Member] | Natural Gas - NYMEX, expires September 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

1,773

Notional Amount at Value

$ 51,434,730

Unrealized Appreciation (Depreciation)

(118,623)

ProShares Ultra Gold [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ (7,152,896)

^[2]

ProShares Ultra Gold [Member] | Futures Contracts Purchased [Member] | Gold Futures - COMEX, expires August 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

2

Notional Amount at Value

$ 250,900

Unrealized Appreciation (Depreciation)

(15,120)

ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts Purchased [Member]

Schedule of Investments [Line Items]

Unrealized Appreciation (Depreciation)

$ (378,240)

ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires October 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

224

Notional Amount at Value

$ 3,824,800

Unrealized Appreciation (Depreciation)

$ (428,970)

ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires November 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

387

Notional Amount at Value

$ 6,608,025

Unrealized Appreciation (Depreciation)

$ (230,990)

ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires December 2018 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

387

Notional Amount at Value

$ 6,588,675

Unrealized Appreciation (Depreciation)

$ 245,645

ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts Purchased [Member] | VIX Futures - CBOE, expires January 2019 [Member]

Schedule of Investments [Line Items]

Number of Contracts | Contract

163

Notional Amount at Value

$ 2,856,575

Unrealized Appreciation (Depreciation)

$ 36,075

[1]	The positions and counterparties herein are as of June 30, 2018. The Funds continually evaluate different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.
[2]	The positions and counterparties herein are as of June 30, 2018. The Funds continually evaluate different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.

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Long (Short) Investment Owned Underlying Face Amount at Market Value

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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-SubTopic 10
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