Statements of Financial Condition - USD ($)		Dec. 31, 2016	Dec. 31, 2015
Assets
United States Treasury Obligations, at value (cost $702,232,971 and $626,932,029, respectively)		$ 702,215,941	$ 626,952,136
Affiliated investments, at value and cost		19,456,137
Total Investments, at value (cost $721,689,108 and $626,932,029, respectively)		721,672,078	626,952,136
Cash held by custodian	[1],[2]	2,181,236	45,309,372
Receivable for:
Dividends from affiliates		10,304
Variation margin			2,158,236
Total assets		723,863,618	674,419,744
Payable for:
Variation margin		114,786
Management fee		516,160	536,118
Brokerage commissions and fees		3,102	4,999
Total liabilities		634,048	541,117
Commitments and Contingencies (Note 9)
Equity
Shareholder's equity—General Shares		799	827
Shareholders' equity—Shares		723,228,771	673,877,800
Total shareholders' equity		723,229,570	673,878,627
Total liabilities and equity		$ 723,863,618	$ 674,419,744
General Shares outstanding		40	40
Shares outstanding		36,200,000	32,600,000
Net asset value per share		$ 19.98	$ 20.67
Market value per share		$ 19.98	$ 20.62

[1] Cash at December 31, 2014 and prior reflects cash held by the Predecessor Commodity Broker.

[2] Cash at December 31, 2016 and 2015 reflects cash held by the Custodian.