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FINANCIAL HIGHLIGHTS | 9 Months Ended
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Sep. 30, 2016
Financial Highlights [Abstract] |
Financial Highlights | NOTE 6 — FINANCIAL HIGHLIGHTS The following table presents per share performance data and other supplemental financial data for the nine months ended September 30, 2016 and 2015 for the shareholders. This information has been derived from information presented in the condensed financial statements.
|  | For the nine |  | For the nine |
|  | months ended |  | months ended |
|  | September 30, |  | September 30, |
|  | 2016 |  | 2015 |
|  | (Unaudited) |  | (Unaudited) |
Per Share Operating Performance: |  |  |  |  |  |  |
Net asset value, beginning of period |  | $ | 17.00 |  | $ | 26.59 |
Total income (loss) |  |  | 1.84 |  |  | (5.99) |
Total expenses |  |  | (0.09) |  |  | (0.15) |
Net increase (decrease) in net asset value |  |  | 1.75 |  |  | (6.14) |
Net asset value, end of period |  | $ | 18.75 |  | $ | 20.45 |
Total Return |  |  | 10.29 | % |  | (23.09) | %
Ratios to Average Net Assets |  |  |  |  |  |  |
Total income (loss) |  |  | 17.46 | % |  | (20.93) | %
Management fees* |  |  | 0.60 | % |  | 0.60 | %
Expenses excluding management fees* |  |  | 0.12 | % |  | 0.20 | %
Net income (loss) |  |  | 16.91 | % |  | (21.53) | %
* Annualized. Total returns are calculated based on the change in value during the period. An individual shareholder’s total return and ratio may vary from the above total returns and ratios based on the timing of contributions to and withdrawals from USL.

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