Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table presents the Trust’s fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis as of September 30, 2017:

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Assets
Net unrealized gain on open contracts:
Futures positions	$	96,744	$	-	$	-	$	96,744
Total fair value	$	96,744	$	-	$	-	$	96,744

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Liabilities
Net unrealized loss on open contracts:
Futures positions	$	-	$	-	$	-	$	-
Total fair value	$	-	$	-	$	-	$	-