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The performance quoted represents past performance and does not guarantee future results. Investment return and principal value of an investment will fluctuate so that an investor's shares, when sold, may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted.


1.73
1.70
4.69
0.49
1.95
0.60
Govt
Govt
14.28
15.99
4.24
3.13
4.37
2.84
Govt
Govt
6.74
7.20
4.49
2.50
3.69
2.21
Govt
Govt
6.30
0.00
5.10
6.36
7.57
7.63
A+
A1
4.66
3.67
4.36
3.14
5.10
4.04
AAA
Aaa
6.75
5.83
0.00
3.52
3.54
6.38
Govt
Govt
0.38
0.31
1.49
0.34
1.37
0.22
Govt
Govt
4.12
4.25
3.00
1.47
2.77
1.45
Govt
Govt
9.37
10.33
4.25
3.30
4.31
3.03
Govt
Govt
1.93
1.88
4.10
5.58
6.15
6.25
A+
A1
4.25
4.25
4.27
5.98
6.75
6.80
A+
A1
5.75
5.98
4.72
6.25
7.07
6.89
A
A2
3.72
3.75
4.20
3.39
4.49
3.47
AA+
Aa1
5.05
5.35
4.39
3.94
4.82
3.79
AA+
Aa1
3.91
1.29
3.06
1.27
5.41
3.63
Govt
Govt
4.92
N/A
8.76
15.25
12.32
14.10
B+
B2
7.38
8.24
4.85
3.83
4.55
4.69
AA
Aa2
7.61
8.57
4.64
3.87
4.57
4.76
AA
Aa3
7.51
8.51
6.05
3.94
4.62
4.76
AA+
Aa3
6.95
N/A
5.08
7.94
7.87
N/A
BBB-
Baa3
N/A
N/A
2.82
1.91
N/A
N/A
Govt
Govt
N/A
2.34
2.38
2.18
N/A
2.56
AA
Aa3

Definitions:

Effective Duration
A measure of the responsiveness of a bond or portfolio's price to changes in interest rates. Effective Duration takes into account the possible changes in expected bond cash flows due to interest rate changes.

Distribution Yield
The Distribution Yield relates the amount of dividends paid to the market price. This measure is only a component of the total return of the fund and should be used along with price return to calculate a total return. This yield calculation is relevant for shareholders because it is the yield they receive.

30 Day SEC Yield
A standard yield calculation developed by the Securities and Exchange Commission that allows for fairer comparisons among bond funds. It is based on the most recent 30-day period. This yield figure reflects the interest earned during the period after deducting the fund's expenses for the period.

Average Yield to Maturity
The average YTM is the interest rate that will make the present value of the cash flows from a bond equal to its market price plus accrued interest. The average yield to maturity considers not only the coupon income, but any capital gain or loss that the investor will realize by holding the bonds to maturity. It also considers the reinvestment of the coupons.



Carefully consider the funds' investment objectives, risk factors, and charges and expenses before investing. This and other information can be found in the funds' prospectuses, which may be obtained by calling 1-800-iShares or click here to view or download a prospectus. Read the prospectus carefully before investing.

Investing involves risk, including possible loss of principal.

In addition to the normal risks associated with equity investing, narrowly focused investments, investments in smaller companies and investments in single countries typically exhibit higher volatility. REIT investments include illiquidity and interest rate risk. Products of companies in which technology funds invest may be subject to severe competition and rapid obsolescence. International investments may involve risk of capital loss from unfavorable fluctuations in currency values, from differences in generally accepted accounting principles or from economic or political instability in other nations. Emerging markets involve heightened risks related to the same factors as well as increased volatility and lower trading volume. Bonds and bond funds will decrease in value as interest rates rise.

† The total annual operating expenses of the iShares Barclays Aggregate Bond Fund and iShares Barclays MBS Bond Fund include “acquired fund fees and expenses” which are related to the funds' investments in the BGI Prime Money Market Fund (the “money market fund”). “Acquired fund fees and expenses” represent the funds' pro rata share of the fees and expenses charged by the money market fund and may vary based on the funds' allocation of assets to the annualized net expenses of the money market fund. Annual operating expenses do not include the effect of interest earned by investments in the money market fund, which is expected to offset the money market fund's fees and expenses.

An investment in the fund(s) is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Index returns are for illustrative purposes only and do not represent actual iShares performance. Index performance returns do not reflect any management fees, transaction costs or expenses. Indexes are unmanaged and one cannot invest directly in an index. Past performance does not guarantee future results.

The iShares Funds ("Funds") are distributed by SEI Investments Distribution Co. (SEI). Barclays Global Fund Advisors (BGFA) serves as the investment advisor to the Funds. BGFA is a subsidiary of Barclays Global Investors, N.A., a majority-owned subsidiary of Barclays Bank PLC, none of which is affiliated with SEI.

The iShares Funds are not sponsored, endorsed, issued, sold or promoted by Cohen & Steers Capital Management, Inc., Dow Jones & Company, Inc., European Public Real Estate Association ("EPRA®"), FTSE International Limited ("FTSE"), FTSE/Xinhua Index Limited ("FXI"), iBoxx®, J.P. Morgan Securities Inc., KLD Research & Analytics, Inc., MSCI Inc., Morningstar Inc., The NASDAQ Stock Market, Inc., National Association of Real Estate Investment Trusts ("NAREIT"), New York Stock Exchange, Inc., Frank Russell Company, or Standard & Poor's, nor are they sponsored or endorsed by Barclays Capital. None of these companies make any representation regarding the advisability of investing in the Funds. Neither SEI nor Barclays Global Investors, nor any of their affiliates, are affiliated with the companies listed above except Barclays Capital, which is an affiliate of Barclays Global Investors.

FXI does not make any warranty regarding the FTSE/Xinhua Index. All rights in the FTSE/Xinhua index vest in FXI. Neither FTSE nor NAREIT makes any warranty regarding the FTSE NAREIT Real Estate 50 Index, FTSE NAREIT Residential Index, FTSE NAREIT Retail Index, FTSE NAREIT Mortgage REITs Index or FTSE NAREIT Industrial/Office Index; all rights vest in NAREIT. Neither FTSE nor NAREIT makes any warranty regarding the FTSE EPRA/NAREIT Global Real Estate ex-US Index, FTSE EPRA/NAREIT North America Index, FTSE EPRA/NAREIT Europe Index, or FTSE EPRA/NAREIT Asia Index; all rights vest in FTSE, NAREIT, and EPRA. All rights in the FTSE Developed Small Cap ex-North America Index vest in FTSE. "FTSE" is a trade- and servicemark of London Stock Exchange and The Financial Times Limited; "NAREIT®" is a trademark of NAREIT; "EPRA®" is a trademark of EPRA. "Xinhua" is a trade- and servicemark of Xinhua Financial Network Limited.


©2008 Barclays Global Investors. All rights reserved. iShares® is a registered trademark of Barclays Global Investors, N.A.. All other trademarks, servicemarks or registered trademarks are the property of their respective owners.