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Condensed Statements of Financial Condition - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents (at cost $1,713,363,666 and $1,846,630,713, respectively) (Notes 2 and 5)	$ 1,713,363,666	$ 1,846,630,713
Equity in trading accounts:
Cash and cash equivalents (at cost $124,439,236 and $144,626,242, respectively)	124,439,236	144,626,242
Unrealized gain (loss) on open commodity futures contracts	203,630,680	117,780,350
Receivable for shares sold	0	38,651,232
Dividends receivable	239,712	154,339
Interest receivable	52,526	32,182
Directors' fees and insurance receivable	51,967	0
Prepaid registration fees	841,044	928,407
ETF transaction fees receivable	3,000	2,000
Total assets	2,042,621,831	2,148,805,465
Liabilities and Partners' Capital
Payable due to Broker	176,491,054	57,283,329
Payable for shares redeemed	52,430,845	68,847,507
General Partner management fees payable (Note 3)	674,534	799,622
Professional fees payable	1,296,869	2,058,723
Brokerage commissions payable	137,961	187,961
Directors' fees and insurance payable	0	21,788
License fees payable	62,940	75,125
Total liabilities	231,094,203	129,274,055
Commitments and Contingencies (Notes 3, 4 and 5)
Partners' Capital
General Partner	0	0
Limited Partners	1,811,527,628	2,019,531,410
Total Partners' Capital	1,811,527,628	2,019,531,410
Total liabilities and partners' capital	$ 2,042,621,831	$ 2,148,805,465
Limited Partners' shares outstanding	120,600,000	167,200,000
Net asset value per share	$ 15.02	$ 12.08
Market value per share	$ 15.06	$ 12.01

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