Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Mar. 31, 2020 | Dec. 31, 2019 |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 98.00% | | 100.42% | |
United States Treasury Obligations, Value | | $ 111,993,384 | | $ 123,646,647 | |
Affiliated Investments, Value | | 845,180,412 | | 105,630,007 | |
Investments in Securities, Value | | 957,173,796 | | 229,276,654 | |
Investments in Securities, Cost | | 956,655,628 | | 229,340,530 | |
Restricted for maintenance margin | | $ 34,995,000 | | $ 8,068,540 | |
Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 86.53% | | 46.26% | |
Affiliated Investments, Value | | $ 845,180,412 | | $ 105,630,007 | |
Affiliated Investments, at Cost | | $ 844,801,306 | | $ 105,742,951 | |
U.S. Treasury Bills, 1.520% due April 2, 2020 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 5.73% | | 24.44% | [1] |
United States Treasury Obligations, Value | | $ 56,000,015 | | $ 55,784,836 | [1] |
United States Treasury Obligations, Principal Value | | $ 56,000,000 | | $ 56,000,000 | [1] |
Investment Interest Rate | | 1.52% | | 1.52% | [1] |
Investment Maturity Date | | Apr. 2, 2020 | | Apr. 2, 2020 | [1] |
U.S. Treasury Bills, 1.505% due May 28, 2020 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2] | 4.20% | | | |
United States Treasury Obligations, Value | [2] | $ 40,995,780 | | | |
United States Treasury Obligations, Principal Value | [2] | $ 41,000,000 | | | |
Investment Interest Rate | [2] | 1.505% | | | |
Investment Maturity Date | [2] | May 28, 2020 | | | |
U.S. Treasury Bills, 0.050% due June 11, 2020 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2] | 1.54% | | | |
United States Treasury Obligations, Value | [2] | $ 14,997,589 | | | |
United States Treasury Obligations, Principal Value | [2] | $ 15,000,000 | | | |
Investment Interest Rate | [2] | 0.05% | | | |
Investment Maturity Date | [2] | Jun. 11, 2020 | | | |
United States Treasury Obligations [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 11.47% | | 54.16% | |
United States Treasury Obligations, Value | | $ 111,993,384 | | $ 123,646,647 | |
Investments in Securities, Cost | | $ 111,854,322 | | $ 123,597,579 | |
Exchange-Traded Fund [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | 8.23% | | 34.99% | |
Affiliated Investments, Value | [3] | $ 80,385,830 | | $ 79,893,780 | |
Affiliated Investments, Shares | [3] | 757,000 | | 757,000 | |
Affiliated Investments, at Cost | [3] | $ 80,006,724 | | $ 80,006,724 | |
Money Market Mutual Fund - Invesco Premier U.S. Government Money Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 78.30% | [4] | 11.27% | [5] |
Affiliated Investments, Value | | $ 764,794,582 | [4] | $ 25,736,227 | [5] |
Affiliated Investments, Shares | | 764,794,582 | [4] | 25,736,227 | [5] |
Investment Interest Rate | | 0.54% | [4] | 1.47% | [5] |
Investments in Securities, Cost | | $ 764,794,582 | [4] | $ 25,736,227 | [5] |
US Treasury Bills, 1.520% Due February 6, 2020 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | | | 14.87% | |
United States Treasury Obligations, Value | | | | $ 33,950,912 | |
United States Treasury Obligations, Principal Value | | | | $ 34,000,000 | |
Investment Interest Rate | | | | 1.52% | |
Investment Maturity Date | | | | Feb. 6, 2020 | |
US Treasury Bills, 1.560% Due March 5, 2020 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 14.85% | |
United States Treasury Obligations, Value | [1] | | | $ 33,910,899 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 34,000,000 | |
Investment Interest Rate | [1] | | | 1.56% | |
Investment Maturity Date | [1] | | | Mar. 5, 2020 | |
| |
[1] | United States Treasury Obligations of $8,068,540 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[2] | United States Treasury Obligations of $34,995,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[3] | Affiliated company. The security and the Fund are affiliated by having the same investment adviser. See Note 8. | |
[4] | The security and the Fund are advised by wholly-owned subsidiaries of Invesco Ltd. and are therefore considered to be affiliated. The rate shown is the 7-day SEC standardized yield as of March 31, 2020. | |
[5] | The security and the Fund are advised by wholly-owned subsidiaries of Invesco Ltd. and are therefore considered to be affiliated. The rate shown is the 7-day SEC standardized yield as of December 31, 2019. | |