Statements of Financial Condition - USD ($)		Dec. 31, 2021	Dec. 31, 2020
Assets
United States Treasury Obligations, at value (cost $31,997,504 and $54,986,091, respectively)		$ 31,996,668	$ 54,989,124
Affiliated investments, at value (cost $79,277,598 and $86,092,194, respectively)		79,239,151	86,041,269
Other investments:
Variation margin receivable- Commodity Futures Contracts		992,200
Cash held by custodian			1,027,215
Receivable for:
Cash due from broker		497,255
Dividends from affiliates		1,450	1,146
Total assets		112,726,724	142,058,754
Other investments:
Variation margin payable- Commodity Futures Contracts			83,070
Payable for:
Management fee		69,820	83,060
Brokerage commissions and fees		5,002	5,003
Total liabilities		74,822	171,133
Commitments and Contingencies (Note 10)
Equity
Shareholder's equity—General Shares		1,959	2,102
Shareholders' equity—Shares		112,649,943	141,885,519
Total shareholders' equity		112,651,902	141,887,621
Total liabilities and equity		$ 112,726,724	$ 142,058,754
General Shares outstanding		40	40
Shares outstanding		2,300,000	2,700,000
Net asset value per share		$ 48.98	$ 52.55
Market value per share	[1]	$ 49.02	$ 52.76

[1] The mean between the last bid and ask prices.