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Condensed Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash Flows from Operating Activities:
Net income (loss)	$ 16,027,645	$ (21,042,667)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Unrealized (gain) loss on open futures contracts	(5,462,074)	27,523,684
(Increase) decrease in dividends receivable	(3,842)	(3,127)
(Increase) decrease in interest receivable	403	0
(Increase) decrease in directors' fees and insurance receivable	(2,320)	(2,146)
Increase (decrease) in payable due to Broker	6,641,221	(15,112,791)
Increase (decrease) in General Partner management fees payable	(6,386)	(11,761)
Increase (decrease) in professional fees payable	(73,408)	(31,957)
Increase (decrease) in brokerage commissions payable	(2,500)	0
Increase (decrease) in directors' fees and insurance payable	(1,014)	(1,439)
Increase (decrease) in license fees payable	(447)	(1,988)
Net cash provided by (used in) operating activities	17,117,278	(8,684,192)
Cash Flows from Financing Activities:
Addition of partnership shares	0	22,440,164
Redemption of partnership shares	(21,338,077)	(13,639,335)
Net cash provided by (used in) financing activities	(21,338,077)	8,800,829
Net Increase (Decrease) in Cash and Cash Equivalents	(4,220,799)	116,637
Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of period	88,230,084	124,370,598
Total Cash, Cash Equivalents and Equity in Trading Accounts, end of period	84,009,285	124,487,235
Components of Cash and Cash Equivalents:
Cash and Cash Equivalents	79,031,716	98,798,423
Equity in Trading Accounts:
Cash and Cash Equivalents	4,977,569	25,688,812
Total Cash, Cash Equivalents and Equity in Trading Accounts	$ 84,009,285	$ 124,487,235

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