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Condensed Statement of Changes in Partners' Capital - USD ($) | Total | General Partner [Member] | Limited Partner [Member]
--- | --- | --- | ---
Net income (loss) | $ (2,018,371) |  |
Net asset value, beginning of period at Dec. 31, 2016 | $ 15.70 |  |
Net asset value, end of period at Sep. 30, 2017 | $ 15.19 |  |
Balances, at December 31, 2017 at Dec. 31, 2017 | $ 94,548,873 | $ 0 | $ 94,548,873
Addition of 1,150,000 partnership shares | 23,719,011 | 0 | 23,719,011
Redemption of 1,750,000 partnership shares | (34,753,669) | 0 | (34,753,669)
Net income (loss) | 23,563,473 | 0 | 23,563,473
Balances, at September 30, 2018 at Sep. 30, 2018 | $ 107,077,688 | $ 0 | $ 107,077,688
Net asset value, beginning of period at Dec. 31, 2017 | $ 18.18 |  |
Net asset value, end of period at Sep. 30, 2018 | $ 23.28 |  |

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