Financial Highlights (Tables)

3 Months Ended

Mar. 31, 2015

Financial Highlights [Abstract]

Operating performance calculation per unit

The following is the per unit operating performance calculation for the three month periods ended March 31, 2015 and 2014:

	Class 0			Class 2
Per unit operating performance
Net asset value per unit, December 31, 2013	$	127.72		$	98.41
Net loss:
Net investment loss		(0.76	)		(1.05	)
Net loss on investments		(12.93	)		(9.93	)
Net loss		(13.69	)		(10.98	)
Net asset value per unit, March 31, 2014	$	114.03		$	87.43
Net asset value per unit, December 31, 2014	$	149.37		$	113.58
Net income:
Net investment loss		(1.04	)		(1.41	)
Net gain on investments		11.60			8.95
Net income		10.56			7.54
Net asset value per unit, March 31, 2015	$	159.93		$	121.12

Ratios to average members' capital and total return

The following represents ratios to average members' capital and total return for the three month periods ended March 31, 2015 and 2014:

	Class 0						Class 2
	2015			2014			2015			2014
Total return before Incentive Allocation		8.83	%		(10.72	)%		8.33	%		(11.16	)%
Incentive Allocation		(1.76	)		0.00			(1.69	)		0.00
Total return after Incentive Allocation		7.07	%		(10.72	)%		6.64	%		(11.16	)%
Net investment loss before Incentive Allocation		(0.66	)%		(0.63	)%		(1.19	)%		(1.13	)%
Incentive Allocation		(1.69	)		0.00			(1.60	)		0.00
Net investment loss after Incentive Allocation		(2.35	)%		(0.63	)%		(2.79	)%		(1.13	)%
Total expenses before Incentive Allocation		0.73	%		0.68	%		1.25	%		1.18	%
Incentive Allocation		1.69			0.00			1.60			0.00
Total expenses after Incentive Allocation		2.42	%		0.68	%		2.85	%		1.18	%