Statements of Financial Condition (Unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Assets
United States Treasury Obligations, at value (cost $295,916,080 and $244,424,302, respectively)	$ 295,936,983	$ 244,408,079
Affiliated Investments, at value (cost $31,186,969 and $39,110,095, respectively)	31,298,707	39,094,237
Other investments:
Unrealized appreciation on LME Commodity Futures Contracts		31,489,170
Receivable for:
Dividends from affiliates	24,831	17,523
Total assets	327,260,521	315,009,009
Other investments:
LME Commodity Futures Contracts payable	365,350	731,031
Unrealized depreciation on LME Commodity Futures Contracts	19,970,080
Payable for:
Management fees	203,012	182,156
Brokerage commissions and fees	4,438	4,561
Total liabilities	20,542,880	917,748
Commitments and Contingencies (Note 10)
Equity
Shareholder's equity—General Shares	705	776
Shareholders' equity—Shares	306,716,936	314,090,485
Total shareholders' equity	306,717,641	314,091,261
Total liabilities and equity	$ 327,260,521	$ 315,009,009
General Shares outstanding	40	40
Shares outstanding	17,400,000	16,200,000
Net asset value per share	$ 17.63	$ 19.39
Market value per share	$ 17.61	$ 19.43