Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Financial Instruments [Abstract]

Net Unrealized Gain (Loss) on Open Contracts

The net unrealized gains (losses) on open contracts, reported as a component of "Trading Equity" on the Statements of Financial Condition, and their longest contract maturities were as follows:

	Net Unrealized Gains/(Losses) on Open Contracts									Longest Maturities
Date	Exchange-Traded			Off-Exchange-Traded			Total			Exchange-Traded	Off-Exchange-Traded
	$			$			$
Mar. 31, 2013		(1,170,739	)		(180,599	)		(1,351,338	)	Sep. 2014	Jun. 2013
Dec. 31, 2012		(2,010,679	)		905,178			(1,105,501	)	Sep. 2014	Mar. 2013