Statements of Assets and Liabilities - USD ($)		Dec. 31, 2019	Dec. 31, 2018
Assets
Cash		$ 31,242,158	$ 10,033,297
Short-term investments	[1]	721,080,429	1,135,484,485
Short-term investments held at broker (restricted)	[2]	29,438,936	64,242,167
Receivable for variation margin on open futures contracts (Note 9)		0	920,643
Total Assets		781,761,523	1,210,680,592
Liabilities
Sponsor’s fees payable		465,837	805,937
Brokerage commissions and fees payable		0	8,046
Payable for variation margin on open futures contracts (Note 9)		5,952,581	0
Total Liabilities		6,418,418	813,983
Commitments and contingent liabilities (Note 7)
Net Assets		$ 775,343,105	$ 1,209,866,609
Shares issued and outstanding (in shares)	[3]	47,750,000	86,500,000
Net asset value per Share (Note 2G) (in dollars per share)		$ 16.24	$ 13.99

[1] Cost of short-term investments: $720,991,393 and $1,135,426,788, respectively.

[2] Cost of short-term investments held at broker (restricted): $29,427,850 and $64,238,656, respectively.

[3] No par value, unlimited amount authorized.