Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value Measurements [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

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, 2012 and December 31, 2011, respectively:

	September 30, 2012
	Level 1			Level 2		Level 3		Total
Assets
Unrealized gain on open contracts:
Futures positions	$	159,905		$	-	$	-	$	159,905
Purchased options on futures contracts		515,818			-		-		515,818
Fixed income securities		-			14,704,345		-		14,704,345
		675,723			14,704,345		-		15,380,068
Liabilities
Unrealized loss on open contracts:
Options written on futures contracts		(569,588	)		-		-		(569,588	)
Total liabilities		(569,588	)		-		-		(569,588	)
Total fair value	$	106,135		$	14,704,345	$	-	$	14,810,480

	December 31, 2011
	Level 1			Level 2		Level 3		Total
Assets
Unrealized gain on open contracts:
Futures positions	$	212,644		$	-	$	-	$	212,644
Forward currency positions		-			151,303		-		151,303
Purchased options on futures contracts		22,525			-		-		22,525
Fixed income securities		-			21,870,890		-		21,870,890
Total assets		235,169			22,022,193		-		22,257,362
Liabilities
Options written on futures contracts		(1,006	)		-		-		(1,006	)
Total fair value	$	234,163		$	22,022,193	$	-	$	22,256,356