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Net Asset Value and Financial Highlights (Details) - $ / shares | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2016 | Mar. 31, 2016
Net Asset Value |  |  |  |  |  |
Net asset value per Share, beginning of period |  | $ 25 |  | $ 24.21 |  | $ 24.24
Net investment income (loss) |  | (0.05) |  | (0.08) |  | (0.28)
Net realized and unrealized gain (loss) |  | (0.68) |  | (1.19) |  | (1.02)
Net Income (Loss) |  | (0.73) |  | (1.27) |  | (1.3)
Net Asset Value per Share, end of period |  | 24.27 |  | 22.94 |  | 22.94
Market Value per Share, end of period |  | $ 24.32 | [1] | $ 23.03 |  | $ 23.03
Ratios to Average Net Assets |  |  |  |  |  |
Expense Ratio | [2],[3] | 1.71% |  | 1.68% |  | 1.71%
Expense Ratio before Waiver/Assumption | [2],[3] | 10.56% |  | 3.15% |  | 4.41%
Net Investment Income (Loss) | [3] | (1.71%) |  | (1.46%) |  | (1.57%)
Total Return, at Net Asset Value | [4] | (2.92%) |  | (5.25%) | [3] | (5.36%)
Total Return, at Market Value | [4] | (2.72%) |  | (4.95%) | [3] | (5.73%)
[1] | Represents the closing bid/ask mean as of March 31, 2015.
[2] | As of February 19, 2015 Fund expenses have been capped at 1.50% of average daily net assets, plus brokerage commissions and interest expense, as disclosed in Note 4.
[3] | Percentages are annualized.
[4] | Percentages are not annualized.

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