Financial Highlights (Tables)

6 Months Ended

Jun. 30, 2013

Financial Highlights [Abstract]

Operating performance calculation per unit

The following is the per Unit operating performance calculation for the three month periods ended June 30, 2013 and 2012:

	Class 0			Class 2
Per share operating performance
Net asset value per unit, March 31, 2012	$	126.14		$	100.65
Net loss:
Net investment loss		(1.21	)		(1.47	)
Net loss on investments		(6.16	)		(4.88	)
Net loss		(7.37	)		(6.35	)
Net asset value per unit, June 30, 2012	$	118.77		$	94.30
Net asset value per unit, March 31, 2013	$	122.47		$	95.80
Net loss:
Net investment loss		(0.86	)		(1.13	)
Net loss on investments		(0.48	)		(0.39	)
Net loss		(1.34	)		(1.52	)
Net asset value per unit, June 30, 2013	$	121.13		$	94.28

The following is the per Unit operating performance calculation for the six month periods ended June 30, 2013 and 2012:

	Class 0			Class 2
Per share operating performance
Net asset value per unit, December 31, 2011	$	123.17		$	98.77
Net loss:
Net investment loss		(2.41	)		(2.95	)
Net loss on investments		(1.99	)		(1.52	)
Net loss		(4.40	)		(4.47	)
Net asset value per unit, June 30, 2012	$	118.77		$	94.30
Net asset value per unit, December 31, 2012	$	114.88		$	90.29
Net income:
Net investment loss		(1.74	)		(2.28	)
Net gain on investments		7.99			6.27
Net income		6.25			3.99
Net asset value per unit, June 30, 2013	$	121.13		$	94.28

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 June 30, 2013 and 2012:

	Class 0						Class 2
	2013			2012			2013			2012
Total return before Incentive Allocation		(1.09	)%		(5.84	)%		(1.59	)%		(6.31	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Total return after Incentive Allocation		(1.09	)%		(5.84	)%		(1.59	)%		(6.31	)%
Net investment loss before Incentive Allocation		(0.70	)%		(0.96	)%		(1.18	)%		(1.46	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Net investment loss after Incentive Allocation		(0.70	)%		(0.96	)%		(1.18	)%		(1.46	)%
Total expenses before Incentive Allocation		0.74	%		1.26	%		1.22	%		1.78	%
Incentive Allocation		0.00			0.00			0.00			0.00
Total expenses after Incentive Allocation		0.74	%		1.26	%		1.22	%		1.78	%

The following represents ratios to average members’ capital and total return for the six month periods ended June 30, 2013 and 2012:

	Class 0						Class 2
	2013			2012			2013			2012
Total return before Incentive Allocation		5.44	%		(3.57	)%		4.42	%		(4.53	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Total return after Incentive Allocation		5.44	%		(3.57	)%		4.42	%		(4.53	)%
Net investment loss before Incentive Allocation		(1.46	)%		(1.96	)%		(2.42	)%		(2.99	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Net investment loss after Incentive Allocation		(1.46	)%		(1.96	)%		(2.42	)%		(2.99	)%
Total expenses before Incentive Allocation		1.56	%		2.54	%		2.52	%		3.57	%
Incentive Allocation		0.00			0.00			0.00			0.00
Total expenses after Incentive Allocation		1.56	%		2.54	%		2.52	%		3.57	%