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Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Cash Flows from Operating Activities: |  |  |
Net income (loss) | $ 567,143 | $ (3,146,483) | $ 2,869,424
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Unrealized (gain) loss on open futures contracts | (522,819) | 3,364,926 | (5,217,980)
(Increase) decrease in receivable from General Partner | 1,757 | 40,379 | (12,970)
(Increase) decrease in dividends receivable | (260) | (831) | (1,337)
(Increase) decrease in interest receivable | (201) | (88) | 0
(Increase) decrease in directors' fees and insurance receivable | 66 | (66) | 1,197
(Increase) decrease in ETF transaction fees receivable | 0 | 350 | (350)
(Increase) decrease in other assets | (216) | 0 | 0
Increase (decrease) in payable due to Broker | 81,581 | (2,099,689) | 2,099,689
Increase (decrease) in General Partner management fees payable | (1,784) | (4,944) | 2,510
Increase (decrease) in professional fees payable | (21,209) | (29,606) | 27,360
Increase (decrease) in brokerage commissions payable | (610) | (620) | 0
Increase (decrease) in directors' fees and insurance payable | 641 | (106) | 106
Increase (decrease) in license fees payable | (331) | (413) | (84)
Net cash provided by (used in) operating activities | 103,758 | (1,877,191) | (232,435)
Cash Flows from Financing Activities: |  |  |
Addition of partnership shares | 584,722 | 1,021,619 | 1,418,858
Redemption of partnership shares | (3,843,434) | (5,986,374) | (967,707)
Net cash provided by (used in) financing activities | (3,258,712) | (4,964,755) | 451,151
Net Increase (Decrease) in Cash and Cash Equivalents | (3,154,954) | (6,841,946) | 218,716
Total Cash, Cash Equivalents and Equity in Trading Accounts, beginning of year | 8,918,876 | 15,760,822 | 15,542,106
Total Cash, Cash Equivalents and Equity in Trading Accounts, end of year | $ 5,763,922 | $ 8,918,876 | $ 15,760,822

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