Financial Highlights (Tables)

9 Months Ended

Sep. 30, 2018

Financial Highlights [Abstract]

Operating Performance Calculation Per Unit

The following is the per Unit operating performance calculation for the three months ended September 30, 2018 and 2017:

	Class 0			Class 2
Per unit operating performance
Net asset value per unit, June 30, 2017	$	137.79		$	100.07
Net income:
Net investment loss		(0.54	)		(0.58	)
Net gain on investments		1.56			1.12
Net income		1.02			0.54
Net asset value per unit, September 30, 2017	$	138.81		$	100.61
Net asset value per unit, June 30, 2018	$	141.08		$	101.69
Net gain:
Net investment loss		(0.40	)		(0.48	)
Net gain on investments		1.45			1.04
Net gain		1.05			0.56
Net asset value per unit, September 30, 2018	$	142.13		$	102.25

The following is the per Unit operating performance calculation for the nine months ended September 30, 2018 and 2017:

	Class 0			Class 2
Per unit operating performance
Net asset value per unit, December 31, 2016	$	146.92		$	107.43
Net loss:
Net investment loss		(2.24	)		(2.52	)
Net loss on investments		(5.87	)		(4.30	)
Net loss		(8.11	)		(6.82	)
Net asset value per unit, September 30, 2017	$	138.81		$	100.61
Net asset value per unit, December 31, 2017	$	140.90		$	101.94
Net gain:
Net investment loss		(1.11	)		(1.38	)
Net gain on investments		2.34			1.69
Net gain		1.23			0.31
Net asset value per unit, September 30, 2018	$	142.13		$	102.25

Ratios to Average Members' Capital and Total Return

The following represents ratios to average members’ capital and total return for the three months ended September 30, 2018 and 2017:

	Class 0						Class 2
	2018			2017			2018			2017
Total return before Incentive Allocation		0.74	%		0.74	%		0.55	%		0.54	%
Incentive Allocation		0.00			0.00			0.00			0.00
Total return after Incentive Allocation		0.74	%		0.74	%		0.55	%		0.54	%
Net investment loss before Incentive Allocation		(0.28	)%		(0.39	)%		(0.47	)%		(0.57	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Net investment loss after Incentive Allocation		(0.28	)%		(0.39	)%		(0.47	)%		(0.57	)%
Total expenses before Incentive Allocation		0.70	%		0.63	%		0.89	%		0.81	%
Incentive Allocation		0.00			0.00			0.00			0.00
Total expenses after Incentive Allocation		0.70	%		0.63	%		0.89	%		0.81	%

The following represents ratios to average members’ capital and total return for the nine month periods ended September 30, 2018 and 2017:

	Class 0						Class 2
	2018			2017			2018			2017
Total return before Incentive Allocation		0.87	%		(5.52	)%		0.30	%		(6.35	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Total return after Incentive Allocation		0.87	%		(5.52	)%		0.30	%		(6.35	)%
Net investment loss before Incentive Allocation		(0.77	)%		(1.58	)%		(1.34	)%		(2.44	)%
Incentive Allocation		0.00			0.00			0.00			0.00
Net investment loss after Incentive Allocation		(0.77	)%		(1.58	)%		(1.34	)%		(2.44	)%
Total expenses before Incentive Allocation		1.90	%		2.17	%		2.46	%		3.03	%
Incentive Allocation		0.00			0.00			0.00			0.00
Total expenses after Incentive Allocation		1.90	%		2.17	%		2.46	%		3.03	%