Additional Valuation Information (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Summary of the Tiered Valuation Input Levels

The Fund's policy is to recognize transfers in and out of the valuation levels as of the end of the reporting period. During the three months ended March 31, 2018 and the year ended December 31, 2017, there were no transfers between valuation levels.

The following is a summary of the tiered valuation input levels as of March 31, 2018:

	Level 1		Level 2		Level 3		Total
Investments in Securities
United States Treasury Obligations	$	—	$	403,014,990	$	—	$	403,014,990
Exchange-Traded Fund		79,999,760		—		—		79,999,760
Money Market Mutual Fund		17,586,592		—				17,586,592
Total Investments in Securities		97,586,352		403,014,990		—		500,601,342
Other Investments - Assets (a)
Currency Futures Contracts		2,298,198		—		—		2,298,198
Total Investments	$	99,884,550	$	403,014,990	$	—	$	502,899,540

^(a) Unrealized appreciation (depreciation).

The following is a summary of the tiered valuation input levels as of December 31, 2017:

	Level 1			Level 2		Level 3		Total
Investments in Securities
United States Treasury Obligations	$	—		$	460,172,505	$	—	$	460,172,505
Exchange-Traded Fund		79,689,390			—		—		79,689,390
Money Market Mutual Fund		1,322,308			—				1,322,308
Total Investments in Securities		81,011,698			460,172,505		—		541,184,203
Other Investments - Liabilities (a)
Currency Futures Contracts		(7,972,637	)		—		—		(7,972,637	)
Total Investments	$	73,039,061		$	460,172,505	$	—	$	533,211,566

^(a) Unrealized appreciation (depreciation).