iShares
 
Bonds99.71%
Cash0.00%
Other*0.28%
*May include dividends booked but not yet received.
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Holdings Detail as of 2/7/2012 (Holdings subject to change)

CUSIP Name % Net
Assets
Market
Value ($)
Maturity Credit
Rating
Moody's
/S&P
Effective Duration Effective
Duration
Coupon Yield
to
Maturity
Yield
to
 Worst
Sector
-- TREASURY NOTE 14.38 $369,160,784 5/31/2012 P-1 /
A-1+
0.31 0.75 0.14 0.14 Treasuries
-- TREASURY NOTE 12.77 $327,822,829 9/30/2012 P-1 /
A-1+
0.64 0.38 0.14 0.14 Treasuries
-- TREASURY NOTE 12.13 $311,408,690 9/15/2012 P-1 /
A-1+
0.60 1.38 0.14 0.14 Treasuries
-- TREASURY BILL 11.11 $285,138,016 4/26/2012 P-1 /
A-1+
0.22 0.00 0.09 0.09 Treasuries
-- TREASURY NOTE 10.88 $279,421,433 6/30/2012 P-1 /
A-1+
0.39 4.88 0.17 0.17 Treasuries
-- TREASURY NOTE 8.34 $214,023,439 2/29/2012 P-1 /
A-1+
0.06 0.88 0.38 0.38 Treasuries
-- TREASURY NOTE 7.73 $198,519,550 7/31/2012 P-1 /
A-1+
0.48 4.62 0.17 0.17 Treasuries
-- TREASURY NOTE 6.79 $174,388,655 10/15/2012 P-1 /
A-1+
0.68 1.38 0.16 0.16 Treasuries
-- TREASURY NOTE 6.05 $155,301,987 11/30/2012 P-1 /
A-1+
0.81 0.50 0.17 0.17 Treasuries
-- TREASURY NOTE 4.39 $112,787,519 8/15/2012 P-1 /
A-1+
0.52 1.75 0.16 0.16 Treasuries
-- TREASURY NOTE 3.97 $102,022,651 5/15/2012 P-1 /
A-1+
0.27 1.38 0.15 0.15 Treasuries
-- TREASURY NOTE 0.97 $24,809,497 7/15/2012 P-1 /
A-1+
0.44 1.50 0.15 0.15 Treasuries
-- TREASURY NOTE 0.21 $5,297,610 6/30/2012 P-1 /
A-1+
0.39 0.62 0.14 0.14 Treasuries
-- BLACKROCK FDS III 0.00 $77,975 -- Aaa /
AA+
0.00 0.00 0.00 0.00 S-T Securities
 

Please note: Total allocation percentages may not equal 100% due to rounding or omission of holdings of less than 1%. Information on certain fund holdings of less than 1% may not be widely available and may not be included in this list.