v3.10.0.1

Financial Highlights (Tables) | 6 Months Ended
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Jun. 30, 2018
Quarterly Financial Information Disclosure [Abstract] |
Per Share Operating Performance | Selected data for a Share outstanding throughout the three months ended June 30, 2018: For the Three Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | Short Euro |  |  | Short VIX Short-Term Futures ETF |  |  | Ultra Bloomberg Crude Oil |  |  | Ultra Bloomberg Natural Gas* |  |  | Ultra Euro |  |  | Ultra Gold |
Net asset value, at March 31, 2018 |  | $ | 39.25 |  |  | $ | 11.59 |  |  | $ | 27.48 |  |  | $ | 27.48 |  |  | $ | 18.10 |  |  | $ | 41.44 |
Net investment income (loss) |  |  | 0.04 |  |  |  | (0.01 | ) |  |  | 0.04 |  |  |  | 0.02 |  |  |  | 0.01 |  |  |  | 0.08 |
Net realized and unrealized gain (loss)# |  |  | 2.31 |  |  |  | 1.19 |  |  |  | 6.81 |  |  |  | 1.78 |  |  |  | (2.02 | ) |  |  | (5.03 | )
Change in net asset value from operations |  |  | 2.35 |  |  |  | 1.18 |  |  |  | 6.85 |  |  |  | 1.80 |  |  |  | (2.01 | ) |  |  | (4.95 | )
Net asset value, at June 30, 2018 |  | $ | 41.60 |  |  | $ | 12.77 |  |  | $ | 34.33 |  |  | $ | 29.28 |  |  | $ | 16.09 |  |  | $ | 36.49 |
Market value per share, at March 31, 2018† |  | $ | 39.04 |  |  | $ | 11.74 |  |  | $ | 27.50 |  |  | $ | 27.53 |  |  | $ | 18.09 |  |  | $ | 41.55 |
Market value per share, at June 30, 2018† |  | $ | 41.53 |  |  | $ | 12.72 |  |  | $ | 34.38 |  |  | $ | 29.27 |  |  | $ | 16.06 |  |  | $ | 36.56 |
Total Return, at net asset value^ |  |  | 6.0 | % |  |  | 10.2 | % |  |  | 24.9 | % |  |  | 6.6 | % |  |  | (11.1 | )% |  |  | (11.9 | )%
Total Return, at market value^ |  |  | 6.4 | % |  |  | 8.3 | % |  |  | 25.0 | % |  |  | 6.3 | % |  |  | (11.2 | )% |  |  | (12.0 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.97 | % |  |  | 1.27 | % |  |  | 0.98 | % |  |  | 1.30 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | 0.39 | % |  |  | (0.42 | )% |  |  | 0.61 | % |  |  | 0.29 | % |  |  | 0.15 | % |  |  | 0.76 | %
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
For the Three Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | Ultra Silver |  |  | Ultra VIX Short-Term Futures ETF |  |  | Ultra Yen |  |  | UltraPro 3x Crude Oil ETF |  |  | UltraPro 3x Short Crude Oil ETF* |  |  | UltraShort Australian Dollar |
Net asset value, at March 31, 2018 |  | $ | 30.83 |  |  | $ | 19.00 |  |  | $ | 63.48 |  |  | $ | 46.30 |  |  | $ | 30.80 |  |  | $ | 47.09 |
Net investment income (loss) |  |  | 0.05 |  |  |  | (0.03 | ) |  |  | (0.05 | ) |  |  | (0.15 | ) |  |  | (0.08 | ) |  |  | 0.03 |
Net realized and unrealized gain (loss)# |  |  | (1.50 | ) |  |  | (6.72 | ) |  |  | (5.55 | ) |  |  | 16.63 |  |  |  | (11.41 | ) |  |  | 3.40 |
Change in net asset value from operations |  |  | (1.45 | ) |  |  | (6.75 | ) |  |  | (5.60 | ) |  |  | 16.48 |  |  |  | (11.49 | ) |  |  | 3.43 |
Net asset value, at June 30, 2018 |  | $ | 29.38 |  |  | $ | 12.25 |  |  | $ | 57.88 |  |  | $ | 62.78 |  |  | $ | 19.31 |  |  | $ | 50.52 |
Market value per share, at March 31, 2018† |  | $ | 31.09 |  |  | $ | 18.53 |  |  | $ | 63.49 |  |  | $ | 46.33 |  |  | $ | 30.77 |  |  | $ | 47.18 |
Market value per share, at June 30, 2018† |  | $ | 29.66 |  |  | $ | 12.34 |  |  | $ | 58.33 |  |  | $ | 63.02 |  |  | $ | 19.27 |  |  | $ | 51.20 |
Total Return, at net asset value^ |  |  | (4.7 | )% |  |  | (35.5 | )% |  |  | (8.8 | )% |  |  | 35.6 | % |  |  | (37.3 | )% |  |  | 7.3 | %
Total Return, at market value^ |  |  | (4.6 | )% |  |  | (33.4 | )% |  |  | (8.1 | )% |  |  | 36.0 | % |  |  | (37.4 | )% |  |  | 8.5 | %
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.95 | % |  |  | 1.57 | % |  |  | 0.95 | % |  |  | 1.19 | % |  |  | 1.23 | % |  |  | 1.02 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | 0.68 | % |  |  | (1.02 | )% |  |  | (0.34 | )% |  |  | (1.15 | )% |  |  | (1.19 | )% |  |  | 0.26 | %
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
For the Three Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | UltraShort Bloomberg Crude Oil |  |  | UltraShort Bloomberg Natural Gas |  |  | UltraShort Euro |  |  | UltraShort Gold |  |  | UltraShort Silver |  |  | UltraShort Yen |
Net asset value, at March 31, 2018 |  | $ | 19.96 |  |  | $ | 42.88 |  |  | $ | 20.33 |  |  | $ | 67.14 |  |  | $ | 33.93 |  |  | $ | 67.20 |
Net investment income (loss) |  |  | 0.03 |  |  |  | (0.02 | ) |  |  | 0.04 |  |  |  | 0.12 |  |  |  | 0.05 |  |  |  | 0.12 |
Net realized and unrealized gain (loss)# |  |  | (5.06 | ) |  |  | (4.27 | ) |  |  | 2.42 |  |  |  | 8.39 |  |  |  | 0.79 |  |  |  | 6.17 |
Change in net asset value from operations |  |  | (5.03 | ) |  |  | (4.29 | ) |  |  | 2.46 |  |  |  | 8.51 |  |  |  | 0.84 |  |  |  | 6.29 |
Net asset value, at June 30, 2018 |  | $ | 14.93 |  |  | $ | 38.59 |  |  | $ | 22.79 |  |  | $ | 75.65 |  |  | $ | 34.77 |  |  | $ | 73.49 |
Market value per share, at March 31, 2018† |  | $ | 19.95 |  |  | $ | 42.83 |  |  | $ | 20.32 |  |  | $ | 66.98 |  |  | $ | 33.54 |  |  | $ | 67.14 |
Market value per share, at June 30, 2018† |  | $ | 14.91 |  |  | $ | 38.62 |  |  | $ | 22.79 |  |  | $ | 75.39 |  |  | $ | 34.40 |  |  | $ | 73.44 |
Total Return, at net asset value^ |  |  | (25.2 | )% |  |  | (10.0 | )% |  |  | 12.1 | % |  |  | 12.7 | % |  |  | 2.5 | % |  |  | 9.4 | %
Total Return, at market value^ |  |  | (25.3 | )% |  |  | (9.8 | )% |  |  | 12.2 | % |  |  | 12.6 | % |  |  | 2.6 | % |  |  | 9.4 | %
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.99 | % |  |  | 1.36 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | 0.76 | % |  |  | (0.19 | )% |  |  | 0.66 | % |  |  | 0.68 | % |  |  | 0.61 | % |  |  | 0.70 | %
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
For the Three Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | VIX Mid-Term Futures ETF |  |  | VIX Short-Term Futures ETF |
Net asset value, at March 31, 2018 |  | $ | 26.61 |  |  | $ | 39.76 |
Net investment income (loss) |  |  | 0.00 | (1) |  |  | (0.01 | )
Net realized and unrealized gain (loss)# |  |  | (3.58 | ) |  |  | (9.33 | )
Change in net asset value from operations |  |  | (3.58 | ) |  |  | (9.34 | )
Net asset value, at June 30, 2018 |  | $ | 23.03 |  |  | $ | 30.42 |
Market value per share, at March 31, 2018† |  | $ | 26.45 |  |  | $ | 39.15 |
Market value per share, at June 30, 2018† |  | $ | 23.02 |  |  | $ | 30.52 |
Total Return, at net asset value^ |  |  | (13.5 | )% |  |  | (23.5 | )%
Total Return, at market value^ |  |  | (13.0 | )% |  |  | (22.0 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.91 | % |  |  | 0.97 | %
Expense ratio, excluding brokerage commissions |  |  | 0.85 | % |  |  | 0.85 | %
Net investment income (loss) |  |  | 0.06 | % |  |  | (0.06 | )%
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
(1) | Amount represents less than $0.005.
Selected data for a Share outstanding throughout the three months ended June 30, 2017: For the Three Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | Short Euro |  |  | Short VIX Short-Term Futures ETF* |  |  | Ultra Bloomberg Crude Oil* |  |  | Ultra Bloomberg Natural Gas* |  |  | Ultra Euro |  |  | Ultra Gold |
Net asset value, at March 31, 2017 |  | $ | 44.51 |  |  | $ | 70.54 |  |  | $ | 18.96 |  |  | $ | 61.36 |  |  | $ | 14.24 |  |  | $ | 38.33 |
Net investment income (loss) |  |  | (0.04 | ) |  |  | (0.16 | ) |  |  | (0.01 | ) |  |  | (0.08 | ) |  |  | (0.01 | ) |  |  | (0.02 | )
Net realized and unrealized gain (loss)# |  |  | (2.73 | ) |  |  | 9.73 |  |  |  | (4.15 | ) |  |  | (12.43 | ) |  |  | 1.93 |  |  |  | (0.56 | )
Change in net asset value from operations |  |  | (2.77 | ) |  |  | 9.57 |  |  |  | (4.16 | ) |  |  | (12.51 | ) |  |  | 1.92 |  |  |  | (0.58 | )
Net asset value, at June 30, 2017 |  | $ | 41.74 |  |  | $ | 80.11 |  |  | $ | 14.80 |  |  | $ | 48.85 |  |  | $ | 16.16 |  |  | $ | 37.75 |
Market value per share, at March 31, 2017† |  | $ | 44.29 |  |  | $ | 70.58 |  |  | $ | 19.02 |  |  | $ | 61.35 |  |  | $ | 14.27 |  |  | $ | 38.45 |
Market value per share, at June 30, 2017† |  | $ | 41.71 |  |  | $ | 80.64 |  |  | $ | 14.86 |  |  | $ | 48.70 |  |  | $ | 16.17 |  |  | $ | 37.68 |
Total Return, at net asset value^ |  |  | (6.2 | )% |  |  | 13.6 | % |  |  | (21.9 | )% |  |  | (20.4 | )% |  |  | 13.4 | % |  |  | (1.5 | )%
Total Return, at market value^ |  |  | (5.8 | )% |  |  | 14.3 | % |  |  | (21.9 | )% |  |  | (20.6 | )% |  |  | 13.3 | % |  |  | (2.0 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.96 | % |  |  | 1.50 | % |  |  | 0.98 | % |  |  | 1.19 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | (0.33 | )% |  |  | (0.86 | )% |  |  | (0.24 | )% |  |  | (0.59 | )% |  |  | (0.26 | )% |  |  | (0.20 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2017.
** | Percentages are annualized.
For the Three Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | Ultra Silver |  |  | Ultra VIX Short-Term Futures ETF* |  |  | Ultra Yen |  |  | UltraPro 3x Crude Oil ETF |  |  | UltraPro 3x Short Crude Oil ETF* |  |  | UltraShort Australian Dollar |
Net asset value, at March 31, 2017 |  | $ | 40.60 |  |  | $ | 64.77 |  |  | $ | 60.42 |  |  | $ | 29.24 |  |  | $ | 84.63 |  |  | $ | 48.75 |
Net investment income (loss) |  |  | (0.02 | ) |  |  | (0.15 | ) |  |  | (0.08 | ) |  |  | (0.07 | ) |  |  | (0.32 | ) |  |  | (0.05 | )
Net realized and unrealized gain (loss)# |  |  | (7.35 | ) |  |  | (25.30 | ) |  |  | (1.66 | ) |  |  | (9.65 | ) |  |  | 21.53 |  |  |  | (0.80 | )
Change in net asset value from operations |  |  | (7.37 | ) |  |  | (25.45 | ) |  |  | (1.74 | ) |  |  | (9.72 | ) |  |  | 21.21 |  |  |  | (0.85 | )
Net asset value, at June 30, 2017 |  | $ | 33.23 |  |  | $ | 39.32 |  |  | $ | 58.68 |  |  | $ | 19.52 |  |  | $ | 105.84 |  |  | $ | 47.90 |
Market value per share, at March 31, 2017† |  | $ | 41.23 |  |  | $ | 64.68 |  |  | $ | 60.19 |  |  | $ | 29.42 |  |  | $ | 84.28 |  |  | $ | 49.00 |
Market value per share, at June 30, 2017† |  | $ | 33.82 |  |  | $ | 38.96 |  |  | $ | 58.68 |  |  | $ | 19.68 |  |  | $ | 104.96 |  |  | $ | 47.80 |
Total Return, at net asset value^ |  |  | (18.1 | )% |  |  | (39.3 | )% |  |  | (2.9 | )% |  |  | (33.2 | )% |  |  | 25.1 | % |  |  | (1.7 | )%
Total Return, at market value^ |  |  | (18.0 | )% |  |  | (39.8 | )% |  |  | (2.5 | )% |  |  | (33.1 | )% |  |  | 24.5 | % |  |  | (2.4 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.95 | % |  |  | 1.88 | % |  |  | 0.95 | % |  |  | 1.27 | % |  |  | 1.34 | % |  |  | 1.01 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | (0.19 | )% |  |  | (1.27 | )% |  |  | (0.49 | )% |  |  | (1.27 | )% |  |  | (1.34 | )% |  |  | (0.42 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2017.
** | Percentages are annualized.
For the Three Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | UltraShort Bloomberg Crude Oil* |  |  | UltraShort Bloomberg Natural Gas |  |  | UltraShort Euro |  |  | UltraShort Gold |  |  | UltraShort Silver |  |  | UltraShort Yen |
Net asset value, at March 31, 2017 |  | $ | 36.70 |  |  | $ | 29.24 |  |  | $ | 26.42 |  |  | $ | 76.40 |  |  | $ | 29.38 |  |  | $ | 72.55 |
Net investment income (loss) |  |  | (0.03 | ) |  |  | (0.06 | ) |  |  | (0.01 | ) |  |  | (0.04 | ) |  |  | (0.02 | ) |  |  | (0.04 | )
Net realized and unrealized gain (loss)# |  |  | 6.76 |  |  |  | 3.98 |  |  |  | (3.29 | ) |  |  | (0.06 | ) |  |  | 5.39 |  |  |  | 1.56 |
Change in net asset value from operations |  |  | 6.73 |  |  |  | 3.92 |  |  |  | (3.30 | ) |  |  | (0.10 | ) |  |  | 5.37 |  |  |  | 1.52 |
Net asset value, at June 30, 2017 |  | $ | 43.43 |  |  | $ | 33.16 |  |  | $ | 23.12 |  |  | $ | 76.30 |  |  | $ | 34.75 |  |  | $ | 74.07 |
Market value per share, at March 31, 2017† |  | $ | 36.57 |  |  | $ | 29.25 |  |  | $ | 26.39 |  |  | $ | 75.93 |  |  | $ | 28.90 |  |  | $ | 72.50 |
Market value per share, at June 30, 2017† |  | $ | 43.21 |  |  | $ | 33.33 |  |  | $ | 23.12 |  |  | $ | 76.37 |  |  | $ | 34.09 |  |  | $ | 74.05 |
Total Return, at net asset value^ |  |  | 18.3 | % |  |  | 13.4 | % |  |  | (12.5 | )% |  |  | (0.1 | )% |  |  | 18.3 | % |  |  | 2.1 | %
Total Return, at market value^ |  |  | 18.2 | % |  |  | 13.9 | % |  |  | (12.4 | )% |  |  | 0.6 | % |  |  | 18.0 | % |  |  | 2.1 | %
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 1.00 | % |  |  | 1.31 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | (0.30 | )% |  |  | (0.81 | )% |  |  | (0.19 | )% |  |  | (0.21 | )% |  |  | (0.27 | )% |  |  | (0.20 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2017.
** | Percentages are annualized.
For the Three Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | VIX Mid-Term Futures ETF |  |  | VIX Short-Term Futures ETF* |
Net asset value, at March 31, 2017 |  | $ | 31.90 |  |  | $ | 52.72 |
Net investment income (loss) |  |  | (0.02 | ) |  |  | (0.04 | )
Net realized and unrealized gain (loss)# |  |  | (4.42 | ) |  |  | (9.99 | )
Change in net asset value from operations |  |  | (4.44 | ) |  |  | (10.03 | )
Net asset value, at June 30, 2017 |  | $ | 27.46 |  |  | $ | 42.69 |
Market value per share, at March 31, 2017† |  | $ | 31.95 |  |  | $ | 52.68 |
Market value per share, at June 30, 2017† |  | $ | 27.43 |  |  | $ | 42.52 |
Total Return, at net asset value^ |  |  | (13.9 | )% |  |  | (19.0 | )%
Total Return, at market value^ |  |  | (14.1 | )% |  |  | (19.3 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.87 | % |  |  | 0.97 | %
Expense ratio, excluding brokerage commissions |  |  | 0.85 | % |  |  | 0.85 | %
Net investment income (loss) |  |  | (0.28 | )% |  |  | (0.30 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2017.
** | Percentages are annualized.
Selected data for a Share outstanding throughout the six months ended June 30, 2018: For the Six Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | Short Euro |  |  | Short VIX Short-Term Futures ETF |  |  | Ultra Bloomberg Crude Oil |  |  | Ultra Bloomberg Natural Gas* |  |  | Ultra Euro |  |  | Ultra Gold |
Net asset value, at December 31, 2017 |  | $ | 39.96 |  |  | $ | 127.30 |  |  | $ | 23.66 |  |  | $ | 32.64 |  |  | $ | 17.44 |  |  | $ | 39.88 |
Net investment income (loss) |  |  | 0.04 |  |  |  | (0.05 | ) |  |  | 0.06 |  |  |  | 0.02 |  |  |  | 0.01 |  |  |  | 0.11 |
Net realized and unrealized gain (loss)# |  |  | 1.60 |  |  |  | (114.48 | ) |  |  | 10.61 |  |  |  | (3.38 | ) |  |  | (1.36 | ) |  |  | (3.50 | )
Change in net asset value from operations |  |  | 1.64 |  |  |  | (114.53 | ) |  |  | 10.67 |  |  |  | (3.36 | ) |  |  | (1.35 | ) |  |  | (3.39 | )
Net asset value, at June 30, 2018 |  | $ | 41.60 |  |  | $ | 12.77 |  |  | $ | 34.33 |  |  | $ | 29.28 |  |  | $ | 16.09 |  |  | $ | 36.49 |
Market value per share, at December 31, 2017† |  | $ | 39.99 |  |  | $ | 128.21 |  |  | $ | 23.44 |  |  | $ | 32.50 |  |  | $ | 17.46 |  |  | $ | 40.67 |
Market value per share, at June 30, 2018† |  | $ | 41.53 |  |  | $ | 12.72 |  |  | $ | 34.38 |  |  | $ | 29.27 |  |  | $ | 16.06 |  |  | $ | 36.56 |
Total Return, at net asset value^ |  |  | 4.1 | % |  |  | (90.0 | )% |  |  | 45.1 | % |  |  | (10.3 | )% |  |  | (7.7 | )% |  |  | (8.5 | )%
Total Return, at market value^ |  |  | 3.9 | % |  |  | (90.1 | )% |  |  | 46.7 | % |  |  | (9.9 | )% |  |  | (8.0 | )% |  |  | (10.1 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.97 | % |  |  | 1.44 | % |  |  | 0.97 | % |  |  | 1.22 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | 0.22 | % |  |  | (0.63 | )% |  |  | 0.45 | % |  |  | 0.16 | % |  |  | 0.10 | % |  |  | 0.56 | %
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
For the Six Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | Ultra Silver |  |  | Ultra VIX Short-Term Futures ETF |  |  | Ultra Yen |  |  | UltraPro 3x Crude Oil ETF |  |  | UltraPro 3x Short Crude Oil ETF* |  |  | UltraShort Australian Dollar |
Net asset value, at December 31, 2017 |  | $ | 33.55 |  |  | $ | 10.33 |  |  | $ | 57.32 |  |  | $ | 37.78 |  |  | $ | 42.32 |  |  | $ | 45.67 |
Net investment income (loss) |  |  | 0.08 |  |  |  | (0.07 | ) |  |  | (0.11 | ) |  |  | (0.27 | ) |  |  | (0.17 | ) |  |  | 0.03 |
Net realized and unrealized gain (loss)# |  |  | (4.25 | ) |  |  | 1.99 |  |  |  | 0.67 |  |  |  | 25.27 |  |  |  | (22.84 | ) |  |  | 4.82 |
Change in net asset value from operations |  |  | (4.17 | ) |  |  | 1.92 |  |  |  | 0.56 |  |  |  | 25.00 |  |  |  | (23.01 | ) |  |  | 4.85 |
Net asset value, at June 30, 2018 |  | $ | 29.38 |  |  | $ | 12.25 |  |  | $ | 57.88 |  |  | $ | 62.78 |  |  | $ | 19.31 |  |  | $ | 50.52 |
Market value per share, at December 31, 2017† |  | $ | 33.85 |  |  | $ | 10.21 |  |  | $ | 57.45 |  |  | $ | 37.23 |  |  | $ | 42.88 |  |  | $ | 45.72 |
Market value per share, at June 30, 2018† |  | $ | 29.66 |  |  | $ | 12.34 |  |  | $ | 58.33 |  |  | $ | 63.02 |  |  | $ | 19.27 |  |  | $ | 51.20 |
Total Return, at net asset value^ |  |  | (12.4 | )% |  |  | 18.6 | % |  |  | 1.0 | % |  |  | 66.2 | % |  |  | (54.4 | )% |  |  | 10.6 | %
Total Return, at market value^ |  |  | (12.4 | )% |  |  | 20.9 | % |  |  | 1.5 | % |  |  | 69.3 | % |  |  | (55.1 | )% |  |  | 12.0 | %
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.95 | % |  |  | 1.74 | % |  |  | 0.95 | % |  |  | 1.18 | % |  |  | 1.22 | % |  |  | 1.02 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | 0.52 | % |  |  | (1.11 | )% |  |  | (0.37 | )% |  |  | (1.12 | )% |  |  | (1.16 | )% |  |  | 0.13 | %
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
For the Six Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | UltraShort Bloomberg Crude Oil |  |  | UltraShort Bloomberg Natural Gas |  |  | UltraShort Euro |  |  | UltraShort Gold |  |  | UltraShort Silver |  |  | UltraShort Yen |
Net asset value, at December 31, 2017 |  | $ | 24.31 |  |  | $ | 39.48 |  |  | $ | 21.21 |  |  | $ | 70.47 |  |  | $ | 31.71 |  |  | $ | 74.93 |
Net investment income (loss) |  |  | 0.05 |  |  |  | (0.08 | ) |  |  | 0.05 |  |  |  | 0.17 |  |  |  | 0.07 |  |  |  | 0.18 |
Net realized and unrealized gain (loss)# |  |  | (9.43 | ) |  |  | (0.81 | ) |  |  | 1.53 |  |  |  | 5.01 |  |  |  | 2.99 |  |  |  | (1.62 | )
Change in net asset value from operations |  |  | (9.38 | ) |  |  | (0.89 | ) |  |  | 1.58 |  |  |  | 5.18 |  |  |  | 3.06 |  |  |  | (1.44 | )
Net asset value, at June 30, 2018 |  | $ | 14.93 |  |  | $ | 38.59 |  |  | $ | 22.79 |  |  | $ | 75.65 |  |  | $ | 34.77 |  |  | $ | 73.49 |
Market value per share, at December 31, 2017† |  | $ | 24.56 |  |  | $ | 39.65 |  |  | $ | 21.20 |  |  | $ | 69.11 |  |  | $ | 31.40 |  |  | $ | 74.98 |
Market value per share, at June 30, 2018† |  | $ | 14.91 |  |  | $ | 38.62 |  |  | $ | 22.79 |  |  | $ | 75.39 |  |  | $ | 34.40 |  |  | $ | 73.44 |
Total Return, at net asset value^ |  |  | (38.6 | )% |  |  | (2.3 | )% |  |  | 7.4 | % |  |  | 7.4 | % |  |  | 9.6 | % |  |  | (1.9 | )%
Total Return, at market value^ |  |  | (39.3 | )% |  |  | (2.6 | )% |  |  | 7.5 | % |  |  | 9.1 | % |  |  | 9.6 | % |  |  | (2.1 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.98 | % |  |  | 1.39 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | 0.53 | % |  |  | (0.39 | )% |  |  | 0.51 | % |  |  | 0.49 | % |  |  | 0.45 | % |  |  | 0.51 | %
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
For the Six Months Ended June 30, 2018 (unaudited)
Per Share Operating Performance |  | VIX Mid-Term Futures ETF |  |  | VIX Short-Term Futures ETF |
Net asset value, at December 31, 2017 |  | $ | 21.29 |  |  | $ | 23.34 |
Net investment income (loss) |  |  | (0.00 | )(1) |  |  | (0.02 | )
Net realized and unrealized gain (loss)# |  |  | 1.74 |  |  |  | 7.10 |
Change in net asset value from operations |  |  | 1.74 |  |  |  | 7.08 |
Net asset value, at June 30, 2018 |  | $ | 23.03 |  |  | $ | 30.42 |
Market value per share, at December 31, 2017† |  | $ | 21.15 |  |  | $ | 23.15 |
Market value per share, at June 30, 2018† |  | $ | 23.02 |  |  | $ | 30.52 |
Total Return, at net asset value^ |  |  | 8.2 | % |  |  | 30.3 | %
Total Return, at market value^ |  |  | 8.8 | % |  |  | 31.8 | %
Ratios to Average Net Assets** |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.98 | % |  |  | 1.03 | %
Expense ratio, excluding brokerage commissions |  |  | 0.85 | % |  |  | 0.85 | %
Net investment income (loss) |  |  | (0.01 | )% |  |  | (0.12 | )%
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2018.
** | Percentages are annualized.
(1) | Amount represents less than $0.005.
Selected data for a Share outstanding throughout the six months ended June 30, 2017: For the Six Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | Short Euro |  |  | Short VIX Short-Term Futures ETF* |  |  | Ultra Bloomberg Crude Oil* |  |  | Ultra Bloomberg Natural Gas* |  |  | Ultra Euro |  |  | Ultra Gold |
Net asset value, at December 31, 2016 |  | $ | 45.06 |  |  | $ | 45.62 |  |  | $ | 23.34 |  |  | $ | 94.24 |  |  | $ | 14.02 |  |  | $ | 32.90 |
Net investment income (loss) |  |  | (0.10 | ) |  |  | (0.33 | ) |  |  | (0.03 | ) |  |  | (0.20 | ) |  |  | (0.03 | ) |  |  | (0.06 | )
Net realized and unrealized gain (loss)# |  |  | (3.22 | ) |  |  | 34.82 |  |  |  | (8.50 | ) |  |  | (45.19 | ) |  |  | 2.17 |  |  |  | 4.91 |
Change in net asset value from operations |  |  | (3.32 | ) |  |  | 34.49 |  |  |  | (8.53 | ) |  |  | (45.39 | ) |  |  | 2.14 |  |  |  | 4.85 |
Net asset value, at June 30, 2017 |  | $ | 41.74 |  |  | $ | 80.11 |  |  | $ | 14.80 |  |  | $ | 48.85 |  |  | $ | 16.16 |  |  | $ | 37.75 |
Market value per share, at December 31, 2016† |  | $ | 45.12 |  |  | $ | 45.49 |  |  | $ | 23.36 |  |  | $ | 94.80 |  |  | $ | 14.09 |  |  | $ | 33.20 |
Market value per share, at June 30, 2017† |  | $ | 41.71 |  |  | $ | 80.64 |  |  | $ | 14.86 |  |  | $ | 48.70 |  |  | $ | 16.17 |  |  | $ | 37.68 |
Total Return, at net asset value^ |  |  | (7.4 | )% |  |  | 75.6 | % |  |  | (36.6 | )% |  |  | (48.2 | )% |  |  | 15.3 | % |  |  | 14.7 | %
Total Return, at market value^ |  |  | (7.6 | )% |  |  | 77.3 | % |  |  | (36.4 | )% |  |  | (48.6 | )% |  |  | 14.8 | % |  |  | 13.5 | %
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.96 | % |  |  | 1.54 | % |  |  | 0.98 | % |  |  | 1.17 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | (0.45 | )% |  |  | (0.96 | )% |  |  | (0.35 | )% |  |  | (0.68 | )% |  |  | (0.36 | )% |  |  | (0.34 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2017.
** | Percentages are annualized.
For the Six Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | Ultra Silver |  |  | Ultra VIX Short-Term Futures ETF* |  |  | Ultra Yen |  |  | UltraPro 3x Crude Oil ETF+ |  |  | UltraPro 3x Short Crude Oil ETF*+ |  |  | UltraShort Australian Dollar |
Net asset value, at December 31, 2016 |  | $ | 33.44 |  |  | $ | 173.93 |  |  | $ | 55.43 |  |  | $ | 25.00 |  |  | $ | 100.00 |  |  | $ | 55.38 |
Net investment income (loss) |  |  | (0.06 | ) |  |  | (0.42 | ) |  |  | (0.17 | ) |  |  | (0.08 | ) |  |  | (0.36 | ) |  |  | (0.13 | )
Net realized and unrealized gain (loss)# |  |  | (0.15 | ) |  |  | (134.19 | ) |  |  | 3.42 |  |  |  | (5.40 | ) |  |  | 6.20 |  |  |  | (7.35 | )
Change in net asset value from operations |  |  | (0.21 | ) |  |  | (134.61 | ) |  |  | 3.26 |  |  |  | (5.48 | ) |  |  | 5.84 |  |  |  | (7.48 | )
Net asset value, at June 30, 2017 |  | $ | 33.23 |  |  | $ | 39.32 |  |  | $ | 58.68 |  |  | $ | 19.52 |  |  | $ | 105.84 |  |  | $ | 47.90 |
Market value per share, at December 31, 2016† |  | $ | 32.09 |  |  | $ | 175.00 |  |  | $ | 55.52 |  |  | $ | 25.00 |  |  | $ | 100.00 |  |  | $ | 55.24 |
Market value per share, at June 30, 2017† |  | $ | 33.82 |  |  | $ | 38.96 |  |  | $ | 58.68 |  |  | $ | 19.68 |  |  | $ | 104.96 |  |  | $ | 47.80 |
Total Return, at net asset value^ |  |  | (0.6 | )% |  |  | (77.4 | )% |  |  | 5.9 | % |  |  | (21.9 | )% |  |  | 5.8 | % |  |  | (13.5 | )%
Total Return, at market value^ |  |  | 5.4 | % |  |  | (77.7 | )% |  |  | 5.7 | % |  |  | (21.3 | )% |  |  | 5.0 | % |  |  | (13.5 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.95 | % |  |  | 1.81 | % |  |  | 0.95 | % |  |  | 1.29 | % |  |  | 1.37 | % |  |  | 1.01 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | (0.33 | )% |  |  | (1.31 | )% |  |  | (0.57 | )% |  |  | (1.29 | )% |  |  | (1.37 | )% |  |  | (0.53 | )%
* | See Note 1 of these Notes to Financial Statements.
+ | From commencement of operations, March 24, 2017 through June 30, 2017.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period ended June 30, 2017. For ProShares UltraPro 3x Crude Oil ETF and ProShares UltraPro 3x Short Crude Oil ETF the returns shares outstanding for the period from commencement of operations through June 30, 2017 are calculated based on the initial offering price upon commencement of operations of $25.00 and $100.00 respectively.
** | Percentages are annualized.
For the Six Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | UltraShort Bloomberg Crude Oil* |  |  | UltraShort Bloomberg Natural Gas |  |  | UltraShort Euro |  |  | UltraShort Gold |  |  | UltraShort Silver |  |  | UltraShort Yen |
Net asset value, at December 31, 2016 |  | $ | 31.70 |  |  | $ | 23.10 |  |  | $ | 27.08 |  |  | $ | 91.33 |  |  | $ | 37.31 |  |  | $ | 80.24 |
Net investment income (loss) |  |  | (0.08 | ) |  |  | (0.13 | ) |  |  | (0.04 | ) |  |  | (0.13 | ) |  |  | (0.06 | ) |  |  | (0.13 | )
Net realized and unrealized gain (loss)# |  |  | 11.81 |  |  |  | 10.20 |  |  |  | (3.92 | ) |  |  | (14.90 | ) |  |  | (2.50 | ) |  |  | (6.04 | )
Change in net asset value from operations |  |  | 11.74 |  |  |  | 10.06 |  |  |  | (3.96 | ) |  |  | (15.03 | ) |  |  | (2.56 | ) |  |  | (6.17 | )
Net asset value, at June 30, 2017 |  | $ | 43.43 |  |  | $ | 33.16 |  |  | $ | 23.12 |  |  | $ | 76.30 |  |  | $ | 34.75 |  |  | $ | 74.07 |
Market value per share, at December 31, 2016† |  | $ | 31.65 |  |  | $ | 23.05 |  |  | $ | 27.08 |  |  | $ | 90.54 |  |  | $ | 38.76 |  |  | $ | 80.25 |
Market value per share, at June 30, 2017† |  | $ | 43.21 |  |  | $ | 33.33 |  |  | $ | 23.12 |  |  | $ | 76.37 |  |  | $ | 34.09 |  |  | $ | 74.05 |
Total Return, at net asset value^ |  |  | 37.0 | % |  |  | 43.6 | % |  |  | (14.6 | )% |  |  | (16.5 | )% |  |  | (6.9 | )% |  |  | (7.7 | )%
Total Return, at market value^ |  |  | 36.5 | % |  |  | 44.6 | % |  |  | (14.6 | )% |  |  | (15.6 | )% |  |  | (12.0 | )% |  |  | (7.7 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.98 | % |  |  | 1.30 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Expense ratio, excluding brokerage commissions |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | % |  |  | 0.95 | %
Net investment income (loss) |  |  | (0.43 | )% |  |  | (0.89 | )% |  |  | (0.33 | )% |  |  | (0.34 | )% |  |  | (0.37 | )% |  |  | (0.36 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated
^ | Percentages are not annualized for the period ended June 30, 2017.
** | Percentages are annualized.
For the Six Months Ended June 30, 2017 (unaudited)
Per Share Operating Performance |  | VIX Mid-Term Futures ETF |  |  | VIX Short-Term Futures ETF* |
Net asset value, at December 31, 2016 |  | $ | 42.14 |  |  | $ | 84.86 |
Net investment income (loss) |  |  | (0.06 | ) |  |  | (0.11 | )
Net realized and unrealized gain (loss)# |  |  | (14.61 | ) |  |  | (42.06 | )
Change in net asset value from operations |  |  | (14.67 | ) |  |  | (42.17 | )
Net asset value, at June 30, 2017 |  | $ | 27.46 |  |  | $ | 42.69 |
Market value per share, at December 31, 2016† |  | $ | 42.34 |  |  | $ | 85.04 |
Market value per share, at June 30, 2017† |  | $ | 27.43 |  |  | $ | 42.52 |
Total Return, at net asset value^ |  |  | (34.8 | )% |  |  | (49.7 | )%
Total Return, at market value^ |  |  | (35.2 | )% |  |  | (50.0 | )%
Ratios to Average Net Assets** |  |  |  |  |  |  |  |
Expense ratio |  |  | 0.88 | % |  |  | 0.96 | %
Expense ratio, excluding brokerage commissions |  |  | 0.85 | % |  |  | 0.85 | %
Net investment income (loss) |  |  | (0.37 | )% |  |  | (0.40 | )%
* | See Note 1 of these Notes to Financial Statements.
# | The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.
† | Market values are determined at the close of the New York Stock Exchange, which may be later than when the Funds’ net asset value is calculated.
^ | Percentages are not annualized for the period June 30, 2017.
** | Percentages are annualized.

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