Net Asset Value and Financial Highlights

12 Months Ended

Dec. 31, 2012

Net Asset Value and Financial Highlights

(10) Net Asset Value and Financial Highlights

The Fund is presenting the following net asset value and financial highlights related to investment performance for a Share outstanding for the Years Ended December 31, 2012, 2011 and 2010. The net investment income and total expense ratios are calculated using average net asset value. The net asset value presentation is calculated using daily Shares outstanding. The total return is based on the change in net asset value of the Shares during the period. An individual investor’s return and ratios may vary based on the timing of capital transactions.

Net asset value per Share is the net asset value of the Fund divided by the number of outstanding Shares.

	Year Ended December 31, 2012			Year Ended December 31, 2011			Year Ended December 31, 2010
Net Asset Value
Net asset value per Share, beginning of period	$	54.07		$	51.82		$	37.63
Net realized and change in unrealized gain (loss) on United States Treasury Obligations and Futures		3.44			2.66			14.48
Net investment income (loss)		(0.41	)		(0.41	)		(0.29	)
Net increase (decrease)		3.03			2.25			14.19
Net asset value per Share, end of period		57.10			54.07		$	51.82
Market value per Share, beginning of period	$	53.88		$	51.82		$	37.67
Market value per Share, end of period	$	57.09		$	53.88		$	51.82
Ratio to average Net Assets
Net investment income (loss)		(0.71	)%		(0.71	)%		(0.68	)%
Total expenses		0.77	%		0.77	%		0.78	%
Total Return, at net asset value		5.60	%		4.34	%		37.71	%
Total Return, at market value		5.96	%		3.98	%		37.56	%