Condensed Schedule of Investments (Unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Futures contracts held long, Fair Value	$ 88,245	$ 132,275
Futures contracts held long, percent of net assets	2.43%	3.13%
Futures contracts held short, Fair Value	14,445	8,732
Futures contracts held short, percent of net assets	0.40%	2.10%
Net unrealized gain on open futures contracts	102,690	221,007
Net unrealized gain on open futures contracts, percent of net assets	2.83%	5.23%
US Treasury Bills, Face Value		2,000,000
US Treasury Bills, Fair Value		1,999,905
US Treasury Bills, percent of net assets		47.25%
Agriculture
Futures contracts held long, Fair Value	23,814	33,047
Futures contracts held long, percent of net assets	0.66%	0.78%
Futures contracts held short, Fair Value	14,476	46,349
Futures contracts held short, percent of net assets	0.40%	1.10%
Currency
Futures contracts held long, Fair Value	29,859	2,220
Futures contracts held long, percent of net assets	0.82%	0.05%
Futures contracts held short, Fair Value	(20,060)	48,266
Futures contracts held short, percent of net assets	(0.55%)	1.14%
Energy
Futures contracts held long, Fair Value	4,095
Futures contracts held long, percent of net assets	0.11%
Futures contracts held short, Fair Value	(7,439)	(4,613)
Futures contracts held short, percent of net assets	(0.20%)	(0.11%)
Indices
Futures contracts held long, Fair Value	61,000	95,500
Futures contracts held long, percent of net assets	1.68%	2.26%
Futures contracts held short, Fair Value	400	2,950
Futures contracts held short, percent of net assets	0.01%	0.07%
Metals
Futures contracts held long, Fair Value	(30,523)	1,508
Futures contracts held long, percent of net assets	(0.84%)	0.04%
Futures contracts held short, Fair Value	$ 27,068	$ (4,220)
Futures contracts held short, percent of net assets	0.74%	(0.10%)