iShares
The iShares Russell Midcap Index Fund seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the mid-capitalization sector of the U.S. equity market, as represented by the Russell Midcap Index. The index represents the 800 smallest companies in the Russell 1000 Index.

Top Holdings* as of 5/17/2012

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Name % of Fund
EL PASO CORP 0.57%
INTUITIVE SURGICAL INC 0.53%
ECOLAB INC 0.49%
SPECTRA ENERGY CORP 0.48%
EQUITY RESIDENTIAL 0.46%
HJ HEINZ CO 0.46%
MARSH & MCLENNAN COS 0.45%
BED BATH & BEYOND INC 0.45%
DISCOVER FINANCIAL SERVICES 0.44%
CONSOLIDATED EDISON INC 0.44%
Total4.77%

Sector Breakdown as of 5/17/2012*

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Sector % of Fund Sector % of Fund  
 
Financial ...
21.28%
 
Materials ...
7.17%
 
Consumer D...
16.76%
 
Energy
7.12%
 
Producer D...
12.90%
 
Consumer S...
6.33%
 
Technology
11.19%
 
S-T Securi...
0.09%
 
Health Care
9.42%
 
Other/Unde...
0.08%
 
Utilities
7.65%
 
*Holdings are subject to change

Avg. Annualized Total Returns (NAV) qtr. as of 3/31/2012

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  1 Year 3 Years 5 Years 10 Years Since Inception
IWR 3.18% 28.90% 2.91% 7.71% 7.49%
Index Index 3.31% 29.13% 3.03% 7.85% 7.63%

Yield as of 4/30/2012

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Description %
30-Day SEC Yield 30-Day SEC Yield 1.42%
12-Month Yield 12-Month Yield
--

Fundamentals & Risk as of 4/30/2012

Description Value
Price to Earnings Ratio Price to Earnings Ratio22.74
Price to Book Ratio Price to Book Ratio3.78
Beta Beta (vs S&P 500)
vs S&P 500 		1.22
Standard Deviation (3 year) Standard Deviation 18.12%

Profile as of 5/18/2012

Description Value
Total Net Assets$6,040,051,062
Expense Ratio0.21%
Shares Outstanding59,900,000
Number of Holdings
as of 5/17/2012		 782
Inception Date7/17/2001
Related IndexRUMCINTR
Net Asset Value
as of 5/18/2012		 $100.84
  • $-1.12
  • -1.10%

Price

as of 5/18/2012 		$100.76
  • $-1.17
  • -1.15%
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 or redeemed, may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted. This information must be accompanied by standardized returns. For standardized returns and performance data current to the most recent month end, click the "Performance" tab above.

Fees & Expenses

Expense Type %
Management Fees 0.20%
+
 Acquired Fund Fees & Expenses ‡ 0.01%
=
 Total Annual Fund Operating Expenses 0.21%

Trading Information

Identifier Type Symbol
TickerIWR
Related IndexRUMCINTR
NAVIWR.NV
Underlying Trading ValueIWR.IV
Shares OutstandingIWR.SO
Estimated CashIWR.EU
Total CashIWR.TC
CUSIP464287499
Options Available

Carefully consider the iShares 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 (1-800-474-2737), or by viewing or downloading a prospectus. Read the prospectus carefully before investing.

Investing involves risk, including possible loss of principal.

‡ “Acquired Fund Fees and Expenses” reflect the Fund's pro rata share of the indirect fees and expenses incurred by investing in one or more acquired funds, such as mutual funds, business development companies, or other pooled investment vehicles. Acquired Fund Fees and Expenses are reflected in the prices of the acquired funds and thus included in the total returns of the Fund.

The iShares Funds ("Funds") are distributed by BlackRock Investments, LLC (together with its affiliates, "BlackRock").

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.

Options involve risk and are not suitable for all investors. Prior to buying or selling an option, a person must receive a copy of Characteristics and Risks of Standardized Options. Copies of this document may be obtained from your broker, from any exchange on which options are traded or by contacting The Options Clearing Corporation, One North Wacker Dr., Suite 500, Chicago, IL 60606 (1-888-678-4667). The document contains information on options issued by The Options Clearing Corporation. The document discusses exchange traded options issued by The Options Clearing Corporation and is intended for educational purposes. No statement in the document should be construed as a recommendation to buy or sell a security or to provide investment advice.

If you need further information, please feel free to call the Options Industry Council Helpline. They will be able to provide you with balanced options education and tools to assist you with your iShares options questions and trading. The Options Industry Council Helpline phone number is 1-888-Options (1-888-678-4667) and their website is www.888options.com.

The Russell Index is a trademark of Russell Investment Group ("Russell") and has been licensed for use by BlackRock. iShares Funds are not sponsored, endorsed, issued, sold or promoted by Russell. Nor does this company make any representation regarding the advisability of investing in iShares Funds. Index data source: Russell.

Shares of iShares Funds are bought and sold at market price (not NAV) and are not individually redeemed from the Fund. Brokerage commissions will reduce returns.

Certain sectors and markets perform exceptionally well based on current market conditions and iShares funds can benefit from that performance. Achieving such exceptional returns involves the risk of volatility and investors should not expect that such results will be repeated.

© 2000-2012 BlackRock. All rights reserved. iShares® and BlackRock® are registered trademarks of BlackRock. All other trademarks, servicemarks or registered trademarks are the property of their respective owners.

© 2000-2012