Note 8 - Financial Highlights (iShares S&P Commodity-Indexed Trust [Member])

9 Months Ended

Sep. 30, 2013

iShares S&P Commodity-Indexed Trust [Member]

Note 8 - Financial Highlights [Line Items]

Net Asset Value And Financial Highlights [Text Block]

8 - Net Asset Value and Financial Highlights

The Trust is presenting the following net asset values and financial highlights related to investment performance and operations for a Share outstanding for the period from January 1, 2013 to September 30, 2013. The net investment income (loss) and total expense ratios are calculated using average net assets. The net asset value presentation is calculated using daily Shares outstanding. The net investment income (loss) and total expense ratios have been annualized and include the allocation of net investment income (loss) and expenses from the Investing Pool. The total return is based on the change in net asset value of a Share during the period. An investor’s return and ratios may vary based on the timing of capital transactions.

Net asset value per Share, beginning of period	$	32.84
Net investment loss		(0.17	)
Realized and unrealized loss		(0.29	)
Net decrease in net assets from operations		(0.46	)
Net asset value per Share, end of period	$	32.38
Ratio to average net assets:
Net investment loss(a)		(0.69	)%
Expenses(a)		0.75	%
Total return(b)		(1.40	)%

(a) Percentage is annualized.

(b) Percentage is not annualized.