Condensed Schedule of Investments (USD $)	Sep. 30, 2011		Dec. 31, 2010
United States Treasury bills
Treasury Bill, Face Value	$ 5,000,000	[1]	$ 5,000,000	[2]
Treasury Bill, Fair Value	4,996,138		4,999,789
Treasury Bill, Percent of Net Assets	63.13%		44.45%
Futures Contracts
Futures contract held long - Agriculture, Fair Value			279,103
Futures contract held long - Agriculture, Percent of Net Assets			2.48%
Futures contract held long - Metals, Fair Value			900
Futures contract held long - Metals, Percent of Net Assets			0.01%
Futures contract held long - Energy, Fair Value			90,000
Futures contract held long - Energy, Percent of Net Assets			0.80%
Futures contract held long - Currency, Fair Value	1,500		233,955
Futures contract held long - Currency, Percent of Net Assets	0.02%		2.08%
Total futures contracts held long, Fair Value	1,500		603,958
Total futures contracts held long, Percent of Net Assets	0.02%		5.37%
Futures contracts held short - Agriculture, Fair Value	305,511
Futures contracts held short - Agriculture, Percent of Net Assets	3.86%
Futures contract held short - Energy, Fair Value	43,940
Futures contract held short - Energy, Percent of Net Assets	0.56%
Futures contract held short - Currency, Fair Value	398,147		43,706
Futures contract held short - Currency, Percent of Net Assets	5.03%		0.39%
Total futures contracts held short, Fair Value	747,598		43,706
Total futures contracts held short, Percent of Net Assets	9.45%		0.39%
Net unrealized gain (loss) on open futures contracts, Fair Value	749,098		647,664
Net unrealized gain (loss) on open futures contracts, Percent of Net Assets	$ 9.47%		$ 5.76%

[1] Matures January 2012 (cost $4,986,097)

[2] Matures January 2011 (cost $4,998,420)