Net Asset Value And Financial Highlights

9 Months Ended

Sep. 30, 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 Three Months Ended September 30, 2012 and 2011 and for the Nine Months Ended September 30, 2012 and 2011. 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 net investment income and total expense ratios have been annualized. 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.

	Three Months Ended						Nine Months Ended
	September 30, 2012			September 30, 2011			September 30, 2012			September 30, 2011
Net Asset Value
Net asset value per Share, beginning of period	$	28.14		$	32.00		$	28.81		$	32.37
Net realized and change in unrealized gain (loss) on United States Treasury Obligations and Futures		1.41			(2.00	)		0.87			(2.22	)
Net investment income (loss)		(0.06	)		(0.07	)		(0.19	)		(0.22	)
Net income (loss)		1.35			(2.07	)		0.68			(2.44	)
Net asset value per Share, end of period	$	29.49		$	29.93		$	29.49		$	29.93
Market value per Share, beginning of period	$	28.22		$	31.74		$	28.88		$	32.35
Market value per Share, end of period	$	29.41		$	29.67		$	29.41		$	29.67
Ratio to average Net Assets*
Net investment income (loss)		(0.83	)%		(0.87	)%		(0.87	)%		(0.84	)%
Total expenses		0.91	%		0.91	%		0.93	%		0.92	%
Total Return, at net asset value **		4.80	%		(6.47	)%		2.36	%		(7.54	)%
Total Return, at market value **		4.22	%		(6.52	)%		1.84	%		(8.28	)%

* Percentages are annualized.

** Percentages are not annualized.