v3.24.0.1

Financial Highlights | 12 Months Ended
--- | ---
Dec. 31, 2023
Quarterly Financial Information Disclosure [Abstract] |
Financial Highlights | NOTE 6 – FINANCIAL HIGHLIGHTS Selected data for a Share outstanding throughout the year ended December 31, 2023: For the Year Ended December 31, 2023
Per Share Operating Performance |  | Short VIX Short-Term Futures ETF |  |  | Ultra Bloomberg Crude Oil |  |  | Ultra Bloomberg Natural Gas * |  |  | Ultra Euro |  |  | Ultra Gold |  |  | Ultra Silver |
Net asset value, at December 31, 2022 |  | $ | 58.71 |  |  | $ | 30.26 |  |  | $ | 363.08 |  |  | $ | 11.27 |  |  | $ | 55.09 |  |  | $ | 31.75 |
Net investment income (loss) |  |  | 2.11 |  |  |  | 0.60 |  |  |  | 1.43 |  |  |  | 0.38 |  |  |  | 1.81 |  |  |  | 0.75 |
Net realized and unrealized gain (loss)# |  |  | 42.57 |  |  |  | (4.58 | ) |  |  | (335.96 | ) |  |  | 0.21 |  |  |  | 6.93 |  |  |  | (5.21 | )
Change in net asset value from operations |  |  | 44.68 |  |  |  | (3.98 | ) |  |  | (334.53 | ) |  |  | 0.59 |  |  |  | 8.74 |  |  |  | (4.46 | )
Net asset value, at December 31, 2023 |  | $ | 103.39 |  |  | $ | 26.28 |  |  | $ | 28.55 |  |  | $ | 11.86 |  |  | $ | 63.83 |  |  | $ | 27.29 |
Market value per share, at December 31, 2022 † |  | $ | 58.68 |  |  | $ | 30.31 |  |  | $ | 355.60 |  |  | $ | 11.26 |  |  | $ | 55.27 |  |  | $ | 32.00 |
Market value per share, at December 31, 2023 † |  | $ | 103.40 |  |  | $ | 26.10 |  |  | $ | 28.44 |  |  | $ | 11.84 |  |  | $ | 63.87 |  |  | $ | 27.17 |
Total Return, at net asset value |  |  | 76.1 | % |  |  | (13.2 | )% |  |  | (92.1 | )% |  |  | 5.2 | % |  |  | 15.9 | % |  |  | (14.1 | )%
Total Return, at market value |  |  | 76.2 | % |  |  | (13.9 | )% |  |  | (92.0 | )% |  |  | 5.2 | % |  |  | 15.6 | % |  |  | (15.1 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 1.16 | % |  |  | 0.99 | % |  |  | 1.38 | % |  |  | 0.95 | % |  |  | 0.96 | % |  |  | 0.98 | %
Net investment income gain (loss) |  |  | 2.74 | % |  |  | 2.16 | % |  |  | 2.24 | % |  |  | 3.29 | % |  |  | 3.02 | % |  |  | 2.64 | %
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.95% and 0.95%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
For the Year Ended December 31, 2023
Per Share Operating Performance |  | Ultra VIX Short-Term Futures ETF * |  |  | Ultra Yen |  |  | UltraShort Bloomberg Crude Oil |  |  | UltraShort Bloomberg Natural Gas |  |  | UltraShort Euro |  |  | UltraShort Gold |
Net asset value, at December 31, 2022 |  | $ | 68.69 |  |  | $ | 34.54 |  |  | $ | 23.93 |  |  | $ | 27.00 |  |  | $ | 29.46 |  |  | $ | 31.10 |
Net investment income (loss) |  |  | 0.42 |  |  |  | 0.96 |  |  |  | 0.70 |  |  |  | 1.55 |  |  |  | 0.97 |  |  |  | 0.83 |
Net realized and unrealized gain (loss)# |  |  | (60.68 | ) |  |  | (8.04 | ) |  |  | (3.88 | ) |  |  | 67.55 |  |  |  | (1.27 | ) |  |  | (5.54 | )
Change in net asset value from operations |  |  | (60.26 | ) |  |  | (7.08 | ) |  |  | (3.18 | ) |  |  | 69.10 |  |  |  | (0.30 | ) |  |  | (4.71 | )
Net asset value, at December 31, 2023 |  | $ | 8.43 |  |  | $ | 27.46 |  |  | $ | 20.75 |  |  | $ | 96.10 |  |  | $ | 29.16 |  |  | $ | 26.39 |
Market value per share, at December 31, 2022 † |  | $ | 68.60 |  |  | $ | 34.56 |  |  | $ | 23.85 |  |  | $ | 27.56 |  |  | $ | 29.45 |  |  | $ | 30.99 |
Market value per share, at December 31, 2023 † |  | $ | 8.44 |  |  | $ | 27.49 |  |  | $ | 20.89 |  |  | $ | 96.41 |  |  | $ | 29.15 |  |  | $ | 26.37 |
Total Return, at net asset value |  |  | (87.7 | )% |  |  | (20.5 | )% |  |  | (13.3 | )% |  |  | 255.9 | % |  |  | (1.0 | )% |  |  | (15.2 | )%
Total Return, at market value |  |  | (87.7 | )% |  |  | (20.5 | )% |  |  | (12.4 | )% |  |  | 249.8 | % |  |  | (1.0 | )% |  |  | (14.9 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 1.61 | % |  |  | 0.95 | % |  |  | 1.07 | % |  |  | 1.66 | % |  |  | 0.95 | % |  |  | 0.98 | %
Net investment income gain (loss) |  |  | 1.84 | % |  |  | 3.40 | % |  |  | 3.28 | % |  |  | 2.63 | % |  |  | 3.28 | % |  |  | 2.95 | %
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.95% and 0.95%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
For the Year Ended December 31, 2023
Per Share Operating Performance |  | UltraShort Silver |  |  | UltraShort Yen |  |  | VIX Mid- Term Futures ETF |  |  | VIX Short- Term Futures ETF * |
Net asset value, at December 31, 2022 |  | $ | 19.46 |  |  | $ | 53.68 |  |  | $ | 30.41 |  |  | $ | 57.00 |
Net investment income (loss) |  |  | 0.50 |  |  |  | 2.15 |  |  |  | 0.71 |  |  |  | 0.86 |
Net realized and unrealized gain (loss)# |  |  | (1.82 | ) |  |  | 13.05 |  |  |  | (14.38 | ) |  |  | (42.36 | )
Change in net asset value from operations |  |  | (1.32 | ) |  |  | 15.20 |  |  |  | (13.67 | ) |  |  | (41.50 | )
Net asset value, at December 31, 2023 |  | $ | 18.14 |  |  | $ | 68.88 |  |  | $ | 16.74 |  |  | $ | 15.50 |
Market value per share, at December 31, 2022 † |  | $ | 19.30 |  |  | $ | 53.57 |  |  | $ | 30.36 |  |  | $ | 56.90 |
Market value per share, at December 31, 2023 † |  | $ | 18.24 |  |  | $ | 68.94 |  |  | $ | 16.75 |  |  | $ | 15.51 |
Total Return, at net asset value |  |  | (6.8 | )% |  |  | 28.3 | % |  |  | (45.0 | )% |  |  | (72.8 | )%
Total Return, at market value |  |  | (5.5 | )% |  |  | 28.7 | % |  |  | (44.8 | )% |  |  | (72.7 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 1.08 | % |  |  | 0.95 | % |  |  | 0.99 | % |  |  | 1.07 | %
Net investment income gain (loss) |  |  | 2.61 | % |  |  | 3.33 | % |  |  | 3.12 | % |  |  | 2.93 | %
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.85% and 0.85%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
Selected data for a Share outstanding throughout the year ended December 31, 2022: For the Year Ended December 31, 2022
Per Share Operating Performance |  | Short VIX Short-Term Futures ETF |  |  | Ultra Bloomberg Crude Oil |  |  | Ultra Bloomberg Natural Gas * |  |  | Ultra Euro |  |  | Ultra Gold |  |  | Ultra Silver |
Net asset value, at December 31, 2021 |  | $ | 61.56 |  |  | $ | 21.54 |  |  | $ | 511.08 |  |  | $ | 13.32 |  |  | $ | 59.69 |  |  | $ | 34.84 |
Net investment income (loss) |  |  | (0.19 | ) |  |  | (0.08 | ) |  |  | 2.55 |  |  |  | 0.05 |  |  |  | (0.01 | ) |  |  | (0.02 | )
Net realized and unrealized gain (loss)# |  |  | (2.66 | ) |  |  | 8.80 |  |  |  | (150.55 | ) |  |  | (2.10 | ) |  |  | (4.59 | ) |  |  | (3.07 | )
Change in net asset value from operations |  |  | (2.85 | ) |  |  | 8.72 |  |  |  | (148.00 | ) |  |  | (2.05 | ) |  |  | (4.60 | ) |  |  | (3.09 | )
Net asset value, at December 31, 2022 |  | $ | 58.71 |  |  | $ | 30.26 |  |  | $ | 363.08 |  |  | $ | 11.27 |  |  | $ | 55.09 |  |  | $ | 31.75 |
Market value per share, at December 31, 2021 † |  | $ | 61.55 |  |  | $ | 21.70 |  |  | $ | 521.80 |  |  | $ | 13.33 |  |  | $ | 59.81 |  |  | $ | 34.74 |
Market value per share, at December 31, 2022 † |  | $ | 58.68 |  |  | $ | 30.31 |  |  | $ | 355.60 |  |  | $ | 11.26 |  |  | $ | 55.27 |  |  | $ | 32.00 |
Total Return, at net asset value |  |  | (4.6 | )% |  |  | 40.5 | % |  |  | (29.0 | )% |  |  | (15.4 | )% |  |  | (7.7 | )% |  |  | (8.9 | )%
Total Return, at market value |  |  | (4.7 | )% |  |  | 39.7 | % |  |  | (31.9 | )% |  |  | (15.5 | )% |  |  | (7.6 | )% |  |  | (7.9 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 1.21 | % |  |  | 1.04 | % |  |  | 1.27 | % |  |  | 0.96 | % |  |  | 0.99 | % |  |  | 0.99 | %
Net investment income gain (loss) |  |  | (0.35 | )% |  |  | (0.22 | )% |  |  | 0.27 | % |  |  | 0.46 | % |  |  | (0.01 | )% |  |  | (0.08 | )%
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.95% and 0.95%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
For the Year Ended December 31, 2022
|  | Ultra VIX |  |  |  |  |  | UltraShort |  |  | UltraShort |
Per Share Operating |  | Short-Term |  |  |  |  |  | Bloomberg |  |  | Bloomberg |
Performance |  | Futures ETF * |  |  | Ultra Yen |  |  | Crude Oil |  |  | Natural Gas |
Net asset value, at December 31, 2021 |  | $ | 124.06 |  |  | $ | 47.29 |  |  | $ | 64.26 |  |  | $ | 247.40 |
Net investment income (loss) |  |  | (0.76 | ) |  |  | 0.26 |  |  |  | 0.01 |  |  |  | (0.06 | )
Net realized and unrealized gain (loss)# |  |  | (54.61 | ) |  |  | (13.01 | ) |  |  | (40.34 | ) |  |  | (220.34 | )
Change in net asset value from operations |  |  | (55.37 | ) |  |  | (12.75 | ) |  |  | (40.33 | ) |  |  | (220.40 | )
Net asset value, at December 31, 2022 |  | $ | 68.69 |  |  | $ | 34.54 |  |  | $ | 23.93 |  |  | $ | 27.00 |
Market value per share, at December 31, 2021 † |  | $ | 124.30 |  |  | $ | 47.29 |  |  | $ | 63.75 |  |  | $ | 242.20 |
Market value per share, at December 31, 2022 † |  | $ | 68.60 |  |  | $ | 34.56 |  |  | $ | 23.85 |  |  | $ | 27.56 |
Total Return, at net asset value |  |  | (44.6 | )% |  |  | (27.0 | )% |  |  | (62.8 | )% |  |  | (89.1 | )%
Total Return, at market value |  |  | (44.8 | )% |  |  | (26.9 | )% |  |  | (62.6 | )% |  |  | (88.6 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 1.56 | % |  |  | 0.96 | % |  |  | 1.14 | % |  |  | 1.37 | %
Net investment income gain (loss) |  |  | (0.63 | )% |  |  | 0.80 | % |  |  | 0.04 | % |  |  | (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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95% and 0.95%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
For the Year Ended December 31, 2022
|  |  |  |  |  |  |  |  |  |  |  |  |  | VIX Mid- |  |  | VIX Short- |
Per Share Operating |  | UltraShort |  |  | UltraShort |  |  | UltraShort |  |  | UltraShort |  |  | Term Futures |  |  | Term Futures |
Performance |  | Euro |  |  | Gold |  |  | Silver |  |  | Yen |  |  | ETF |  |  | ETF * |
Net asset value, at December 31, 2021 |  | $ | 25.84 |  |  | $ | 31.71 |  |  | $ | 26.77 |  |  | $ | 41.50 |  |  | $ | 30.61 |  |  | $ | 75.62 |
Net investment income (loss) |  |  | 0.10 |  |  |  | (0.07 | ) |  |  | (0.07 | ) |  |  | 0.17 |  |  |  | (0.03 | ) |  |  | (0.10 | )
Net realized and unrealized gain (loss)# |  |  | 3.52 |  |  |  | (0.54 | ) |  |  | (7.24 | ) |  |  | 12.01 |  |  |  | (0.17 | ) |  |  | (18.52 | )
Change in net asset value from operations |  |  | 3.62 |  |  |  | (0.61 | ) |  |  | (7.31 | ) |  |  | 12.18 |  |  |  | (0.20 | ) |  |  | (18.62 | )
Net asset value, at December 31, 2022 |  | $ | 29.46 |  |  | $ | 31.10 |  |  | $ | 19.46 |  |  | $ | 53.68 |  |  | $ | 30.41 |  |  | $ | 57.00 |
Market value per share, at December 31, 2021 † |  | $ | 25.86 |  |  | $ | 31.66 |  |  | $ | 26.84 |  |  | $ | 41.50 |  |  | $ | 30.57 |  |  | $ | 75.85 |
Market value per share, at December 31, 2022 † |  | $ | 29.45 |  |  | $ | 30.99 |  |  | $ | 19.30 |  |  | $ | 53.57 |  |  | $ | 30.36 |  |  | $ | 56.90 |
Total Return, at net asset value |  |  | 14.0 | % |  |  | (1.9 | )% |  |  | (27.3 | )% |  |  | 29.4 | % |  |  | (0.7 | )% |  |  | (24.6 | )%
Total Return, at market value |  |  | 13.9 | % |  |  | (2.1 | )% |  |  | (28.1 | )% |  |  | 29.1 | % |  |  | (0.7 | )% |  |  | (25.0 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 0.96 | % |  |  | 1.00 | % |  |  | 1.08 | % |  |  | 0.95 | % |  |  | 1.01 | % |  |  | 1.15 | %
Net investment income gain (loss) |  |  | 0.32 | % |  |  | (0.23 | )% |  |  | (0.25 | )% |  |  | 0.31 | % |  |  | (0.10 | )% |  |  | (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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.85% and 0.85%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
Selected data for a Share outstanding throughout the year ended December 31, 2021 For the Year Ended December 31, 2021
|  |  |  |  | Short VIX |  |  | Ultra |  |  | Ultra |  |  |  |  |  |  |
Per Share Operating |  |  |  |  | Short-Term |  |  | Bloomberg |  |  | Bloomberg |  |  |  |  |  |  |
Performance |  | Short Euro |  |  | Futures ETF |  |  | Crude Oil |  |  | Natural Gas * |  |  | Ultra Euro |  |  | Ultra Gold |
Net asset value, at December 31, 2020 |  | $ | 41.92 |  |  | $ | 41.42 |  |  | $ | 9.10 |  |  | $ | 419.91 |  |  | $ | 15.79 |  |  | $ | 67.57 |
Net investment income (loss) |  |  | (0.39 | ) |  |  | (0.68 | ) |  |  | (0.18 | ) |  |  | (9.90 | ) |  |  | (0.13 | ) |  |  | (0.57 | )
Net realized and unrealized gain (loss)# |  |  | 3.38 |  |  |  | 20.82 |  |  |  | 12.62 |  |  |  | 101.07 |  |  |  | (2.34 | ) |  |  | (7.31 | )
Change in net asset value from operations |  |  | 2.99 |  |  |  | 20.14 |  |  |  | 12.44 |  |  |  | 91.17 |  |  |  | (2.47 | ) |  |  | (7.88 | )
Net asset value, at December 31, 2021 |  | $ | 44.91 |  |  | $ | 61.56 |  |  | $ | 21.54 |  |  | $ | 511.08 |  |  | $ | 13.32 |  |  | $ | 59.69 |
Market value per share, at December 31, 2020 † |  | $ | 41.35 |  |  | $ | 41.44 |  |  | $ | 9.07 |  |  | $ | 421.40 |  |  | $ | 15.81 |  |  | $ | 68.20 |
Market value per share, at December 31, 2021 † |  | $ | 44.92 |  |  | $ | 61.55 |  |  | $ | 21.70 |  |  | $ | 521.80 |  |  | $ | 13.33 |  |  | $ | 59.81 |
Total Return, at net asset value |  |  | 7.1 | % |  |  | 48.6 | % |  |  | 136.8 | % |  |  | 21.7 | % |  |  | (15.6 | )% |  |  | (11.7 | )%
Total Return, at market value |  |  | 8.6 | % |  |  | 48.5 | % |  |  | 139.3 | % |  |  | 23.8 | % |  |  | (15.7 | )% |  |  | (12.3 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 0.97 | % |  |  | 1.36 | % |  |  | 1.10 | % |  |  | 1.53 | % |  |  | 0.95 | % |  |  | 1.00 | %
Net investment income gain (loss) |  |  | (0.91 | )% |  |  | (1.34 | )% |  |  | (1.06 | )% |  |  | (1.48 | )% |  |  | (0.90 | )% |  |  | (0.96 | )%
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.95% and 0.95%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
For the Year Ended December 31, 2021
Per Share Operating Performance |  | Ultra Silver |  |  | Ultra VIX Short-Term Futures ETF * |  |  | Ultra Yen |  |  | UltraShort Australian Dollar |  |  | UltraShort Bloomberg Crude Oil |  |  | UltraShort Bloomberg Natural Gas |
Net asset value, at December 31, 2020 |  | $ | 50.71 |  |  | $ | 1,066.78 |  |  | $ | 59.83 |  |  | $ | 44.45 |  |  | $ | 232.23 |  |  | $ | 951.82 |
Net investment income (loss) |  |  | (0.42 | ) |  |  | (5.94 | ) |  |  | (0.48 | ) |  |  | (0.46 | ) |  |  | (1.13 | ) |  |  | (3.93 | )
Net realized and unrealized gain (loss)# |  |  | (15.45 | ) |  |  | (936.78 | ) |  |  | (12.06 | ) |  |  | 4.26 |  |  |  | (166.84 | ) |  |  | (700.49 | )
Change in net asset value from operations |  |  | (15.87 | ) |  |  | (942.72 | ) |  |  | (12.54 | ) |  |  | 3.80 |  |  |  | (167.97 | ) |  |  | (704.42 | )
Net asset value, at December 31, 2021 |  | $ | 34.84 |  |  | $ | 124.06 |  |  | $ | 47.29 |  |  | $ | 48.25 |  |  | $ | 64.26 |  |  | $ | 247.40 |
Market value per share, at December 31, 2020 † |  | $ | 51.28 |  |  | $ | 1,065.00 |  |  | $ | 59.82 |  |  | $ | 43.89 |  |  | $ | 232.80 |  |  | $ | 947.60 |
Market value per share, at December 31, 2021 † |  | $ | 34.74 |  |  | $ | 124.30 |  |  | $ | 47.29 |  |  | $ | 48.41 |  |  | $ | 63.75 |  |  | $ | 242.20 |
Total Return, at net asset value |  |  | (31.3 | )% |  |  | (88.4 | )% |  |  | (21.0 | )% |  |  | 8.5 | % |  |  | (72.3 | )% |  |  | (74.0 | )%
Total Return, at market value |  |  | (32.3 | )% |  |  | (88.3 | )% |  |  | (20.9 | )% |  |  | 10.3 | % |  |  | (72.6 | )% |  |  | (74.4 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 1.02 | % |  |  | 1.74 | % |  |  | 0.95 | % |  |  | 1.03 | % |  |  | 1.22 | % |  |  | 1.56 | %
Net investment income gain (loss) |  |  | (0.98 | )% |  |  | (1.72 | )% |  |  | (0.90 | )% |  |  | (0.98 | )% |  |  | (1.16 | )% |  |  | (1.52 | )%
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.95% and 0.95%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.
For the Year Ended December 31, 2021
|  |  |  |  |  |  |  |  |  |  |  |  |  | VIX Mid- |  |  | VIX Short- |
Per Share Operating |  | UltraShort |  |  | UltraShort |  |  | UltraShort |  |  | UltraShort |  |  | Term Futures |  |  | Term Futures |
Performance |  | Euro |  |  | Gold |  |  | Silver |  |  | Yen |  |  | ETF |  |  | ETF * |
Net asset value, at December 31, 2020 |  | $ | 22.53 |  |  | $ | 31.43 |  |  | $ | 27.73 |  |  | $ | 33.91 |  |  | $ | 36.73 |  |  | $ | 275.14 |
Net investment income (loss) |  |  | (0.22 | ) |  |  | (0.33 | ) |  |  | (0.27 | ) |  |  | (0.34 | ) |  |  | (0.33 | ) |  |  | (1.60 | )
Net realized and unrealized gain (loss)# |  |  | 3.53 |  |  |  | 0.61 |  |  |  | (0.69 | ) |  |  | 7.93 |  |  |  | (5.79 | ) |  |  | (197.92 | )
Change in net asset value from operations |  |  | 3.31 |  |  |  | 0.28 |  |  |  | (0.96 | ) |  |  | 7.59 |  |  |  | (6.12 | ) |  |  | (199.52 | )
Net asset value, at December 31, 2021 |  | $ | 25.84 |  |  | $ | 31.71 |  |  | $ | 26.77 |  |  | $ | 41.50 |  |  | $ | 30.61 |  |  | $ | 75.62 |
Market value per share, at December 31, 2020 † |  | $ | 22.52 |  |  | $ | 31.14 |  |  | $ | 27.40 |  |  | $ | 33.91 |  |  | $ | 36.70 |  |  | $ | 274.80 |
Market value per share, at December 31, 2021 † |  | $ | 25.86 |  |  | $ | 31.66 |  |  | $ | 26.84 |  |  | $ | 41.50 |  |  | $ | 30.57 |  |  | $ | 75.85 |
Total Return, at net asset value |  |  | 14.7 | % |  |  | 0.9 | % |  |  | (3.5 | )% |  |  | 22.4 | % |  |  | (16.7 | )% |  |  | (72.5 | )%
Total Return, at market value |  |  | 14.8 | % |  |  | 1.7 | % |  |  | (2.0 | )% |  |  | 22.4 | % |  |  | (16.7 | )% |  |  | (72.4 | )%
Ratios to Average Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expense ratio^^ |  |  | 0.95 | % |  |  | 1.03 | % |  |  | 1.10 | % |  |  | 0.95 | % |  |  | 1.04 | % |  |  | 1.21 | %
Net investment income gain (loss) |  |  | (0.90 | )% |  |  | (0.98 | )% |  |  | (1.06 | )% |  |  | (0.90 | )% |  |  | (1.00 | )% |  |  | (1.18 | )%
* | 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 applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.
^^ | The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.85% and 0.85%, respectively, if non-recurring fees and expenses, and brokerage commissions and futures account fees were excluded.

X
- References No definition available. + Details
Name: | us-gaap_QuarterlyFinancialInformationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147482964/270-10-50-1B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 270 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//270/tableOfContent + Details
Name: | us-gaap_QuarterlyFinancialInformationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration