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Condensed Statements of Cash Flows - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015
Cash Flows from Operating Activities: |  |
Net income (loss) | $ 18,181,911 | $ (15,789,632)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |
(Increase) decrease in commodity futures trading account - cash and cash equivalents | 21,326,377 | (1,277,897)
Unrealized (gain) loss on open futures contracts | (30,005,207) | (4,104,681)
(Increase) decrease in dividends receivable | (8,301) | 274
(Increase) decrease in ETF transaction fees receivable | 0 | 350
Increase (decrease) in payable due to Broker | 7,411,179 | 0
Increase (decrease) in General Partner management fees payable | 21,793 | 17,008
Increase (decrease) in professional fees payable | (91,883) | (85,521)
Increase (decrease) in brokerage commissions payable | 2,200 | 3,150
Increase (decrease) in directors' fees and insurance payable | (308) | 71
Increase (decrease) in license fees payable | 2,046 | 1,205
Net cash provided by (used in) operating activities | 16,839,807 | (21,235,673)
Cash Flows from Financing Activities: |  |
Addition of partnership shares | 49,890,042 | 74,914,452
Redemption of partnership shares | (15,767,127) | (24,486,814)
Net cash provided by (used in) financing activities | 34,122,915 | 50,427,638
Net Increase (Decrease) in Cash and Cash Equivalents | 50,962,722 | 29,191,965
Cash and Cash Equivalents, beginning of period | 61,380,282 | 33,464,533
Cash and Cash Equivalents, end of period | $ 112,343,004 | $ 62,656,498

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