New York, May 10, 2006 MSCI US Equity Indices The following are changes in constituents for the MSCI US Equity Indices, which will take place as of the close of May 31, 2006. SUMMARY OF THE CHANGES INCLUDED IN THIS ANNOUNCEMENT: Index MSCI MSCI MSCI MSCI US US US US PRIME MARKET 750 INDEX SMALL CAP 1750 INDEX INVESTABLE MARKET 2500 INDEX MICRO CAP INDEX MSCI US PRIME MARKET 750 INDEX Additions MIRANT CORP CBOT HOLDINGS INC MARTIN MARIETTA MATRLS USG CORP AKAMAI TECHNOLOGIES OSHKOSH TRUCK CORP TEREX CORP CNX GAS CORP PHARMACEUTICAL PRDCT DEV AMR CORP ARCH CAPITAL GROUP CORP EXECUTIVE BOARD CO VERTEX PHARMACEUTICALS MCDERMOTT INTERNATIONAL SL GREEN REALTY CORP WESTERN DIGITAL COLONIAL BANCGROUP INTERCONTINENTAL ONEOK UNITED DOMINION REALTY CHARLES RIVER LABS INTL BORGWARNER MSCI US SMALL CAP 1750 INDEX Additions SYNOPSYS VISHAY INTERTECHNOLOGY VALSPAR CORP NATIONAL INSTRUMENTS FAIR ISAAC CORP BROOKDALE SR FAIRCHILD SEMICON INTL A MEREDITH CORP COMMON AGERE SYSTEMS PACKAGING CORP OF AMER SPANSION INC A HEARST-ARGYLE TV A DRESSER-RAND GROUP INC ROCKWOOD HOLDINGS INC IHS INC A AMERICAN COMMER. LINES INVESTORS BANCORP INC JETBLUE AIRWAYS CORP INTERNATIONAL CO UNDER ARMOUR A GLOBAL CASH ACCESS INC Page 1 of 6 Nb of Securities Added Nb of Securities Deleted 22 106 99 111 11 52 34 42 Deletions SYNOPSYS VISHAY INTERTECHNOLOGY VALSPAR CORP NATIONAL INSTRUMENTS FAIR ISAAC CORP FAIRCHILD SEMICON INTL A MEREDITH CORP COMMON AGERE SYSTEMS PACKAGING CORP OF AMER HEARST-ARGYLE TV A JETBLUE AIRWAYS CORP Deletions MARTIN MARIETTA MATRLS USG CORP AKAMAI TECHNOLOGIES OSHKOSH TRUCK CORP TEREX CORP PHARMACEUTICAL PRDCT DEV AMR CORP ARCH CAPITAL GROUP CORP EXECUTIVE BOARD CO VERTEX PHARMACEUTICALS MCDERMOTT INTERNATIONAL SL GREEN REALTY CORP WESTERN DIGITAL COLONIAL BANCGROUP ONEOK UNITED DOMINION REALTY CHARLES RIVER LABS INTL BORGWARNER WP STEWART & CO SEMITOOL OPLINK COMMUNICATIONS MSCI US Equity Indices - May 10, 2006 © MSCI 2006, All rights reserved. APOLLO INV CORP ADAMS RESPIRATORY THERAP RACKABLE SYSTEMS VISTAPRINT LTD HERCULES OFFSHORE INC BASIC ENERYG SVS ALON USA ENERGY INC CF INDUSTRIES HOLDINGS HITTITE MICROWAVE CORP WILLIAMS SCOTSMAN INT. NUVELO NEWMARKET CORP HEARTLAND PAYMENT SYSTM ITC HOLDINGS CORP NETLOGIC MICROSYSTEMS TAL INTERNATIONAL GRP PACIFIC ETHANOL INC PARALLEL PETROLEUM CORP MEDIS TECHNOLOGIES SCHICK TECH INC DEALERTRACK HOLD ESCALA GROUP BANKRATE TRONOX A TRADESTATION GROUP AMERICAN SCIENCE & ENGR. ARENA PHARMACEUTICALS BRONCO DRILLING CO INC K&F INDUSTRIES HOLDINGS ANDERSONS (THE) COVAD COMM GROUP CENTENNIAL BANK KENEXA CORP SUPERIOR WELL SERVICES FIRST CASH FINL SVCS ASHFORD HOSPITALITY T. GREENBRIER COS RETAIL VENTURES ARES CAPITAL COR ULTIMATE SOFTWARE GROUP IROBOT CORP PIKE ELECTRIC CORP AMERICAN VANGUARD CORP PALOMAR MEDICAL TECH BJ'S RESTAURANTS FIRST AVENUE NETWORKS FIRST ACCEPTANCE CORP SMART & FINAL WILSHIRE BANCORP KFORCE RUTH'S CHRIS STEAK HOUSE IKANOS COMMUNICATIONS TRUMP ENTERTAINM UNITED PANAM FINANCIAL VIRGINIA COMMERCE BNCORP LTC PROPERTIES ADVANCED ANALOGIC TECH. MONRO MUFFLER BRAKE SULPHCO INC MCMORAN EXPLORATION CO TRICO MARINE SER CASCADE BANCORP REDDY ICE HOLDINGS INC WILLBROS GROUP CONSOLIDATED COMM. CBEYOND COMMUNICATIONS HORIZON LINES INC RBC BEARINGS INC Page 2 of 6 DRUGSTORE.COM OSI SYSTEMS ANAREN FEDERAL AGRICULT. MTG C ARDEN GROUP A PEGASYSTEMS DOT HILL SYSTEMS CORP TRIMERIS QAD KEITHLEY INSTR. COMMON INTEGRATED SILICON SOL'N 4KIDS ENTERTAINMENT PIXELWORKS FINANCIAL INSTITUTIONS INSPIRE PHARMACEUTICALS NEOPHARM C&D TECHNOLOGIES WELLMAN HOUSEVALUES CLARK STURM RUGER & CO CORVEL CORP GLOBAL POWER EQUIPMENT HOOPER HOLMES SAGA COMMUNICATIONS A REGENT COMMUNICATIONS QUANTA CAPITAL HLDGS IMMUNOGEN HANDLEMAN CO ANTIGENICS MOVIE GALLERY MSCI US Equity Indices - May 10, 2006 © MSCI 2006, All rights reserved. NARA BANCORP INTERCHANGE FINL SVCS WAUWATOSA HOLDINGS INC GENCO SHIPPING & TRADING MEDICAL PROPERTIES TRUST TRICO BANCSHARES JER INVESTORS TRUST DIRECTED ELEC YARDVILLE NAT'L BANCORP JAMES RIVER GROUP INC CENTER FINANCIAL CORP TRUE RELIGION AP NASH FINCH CO HEARTLAND FINANCIAL USA CORE MARK HOLDIN COLEY PHARMACEUTICAL GRP BLUEGREEN CORP MSCI US INVESTABLE MARKET 2500 INDEX Additions MIRANT CORP CBOT HOLDINGS INC CNX GAS CORP INTERCONTINENTAL BROOKDALE SR SPANSION INC A DRESSER-RAND GROUP INC ROCKWOOD HOLDINGS INC IHS INC A AMERICAN COMMER. LINES INVESTORS BANCORP INC INTERNATIONAL CO UNDER ARMOUR A GLOBAL CASH ACCESS INC APOLLO INV CORP ADAMS RESPIRATORY THERAP RACKABLE SYSTEMS VISTAPRINT LTD HERCULES OFFSHORE INC BASIC ENERYG SVS ALON USA ENERGY INC CF INDUSTRIES HOLDINGS HITTITE MICROWAVE CORP WILLIAMS SCOTSMAN INT. NUVELO NEWMARKET CORP HEARTLAND PAYMENT SYSTM ITC HOLDINGS CORP NETLOGIC MICROSYSTEMS TAL INTERNATIONAL GRP PACIFIC ETHANOL INC PARALLEL PETROLEUM CORP MEDIS TECHNOLOGIES SCHICK TECH INC DEALERTRACK HOLD ESCALA GROUP BANKRATE TRONOX A TRADESTATION GROUP AMERICAN SCIENCE & ENGR. ARENA PHARMACEUTICALS BRONCO DRILLING CO INC K&F INDUSTRIES HOLDINGS ANDERSONS (THE) COVAD COMM GROUP CENTENNIAL BANK KENEXA CORP Page 3 of 6 Deletions WP STEWART & CO SEMITOOL OPLINK COMMUNICATIONS DRUGSTORE.COM OSI SYSTEMS ANAREN FEDERAL AGRICULT. MTG C ARDEN GROUP A PEGASYSTEMS DOT HILL SYSTEMS CORP TRIMERIS QAD KEITHLEY INSTR. COMMON INTEGRATED SILICON SOL'N 4KIDS ENTERTAINMENT PIXELWORKS FINANCIAL INSTITUTIONS INSPIRE PHARMACEUTICALS NEOPHARM C&D TECHNOLOGIES WELLMAN HOUSEVALUES CLARK STURM RUGER & CO CORVEL CORP GLOBAL POWER EQUIPMENT HOOPER HOLMES SAGA COMMUNICATIONS A REGENT COMMUNICATIONS QUANTA CAPITAL HLDGS IMMUNOGEN HANDLEMAN CO ANTIGENICS MOVIE GALLERY MSCI US Equity Indices - May 10, 2006 © MSCI 2006, All rights reserved. SUPERIOR WELL SERVICES FIRST CASH FINL SVCS ASHFORD HOSPITALITY T. GREENBRIER COS RETAIL VENTURES ARES CAPITAL COR ULTIMATE SOFTWARE GROUP IROBOT CORP PIKE ELECTRIC CORP AMERICAN VANGUARD CORP PALOMAR MEDICAL TECH BJ'S RESTAURANTS FIRST AVENUE NETWORKS FIRST ACCEPTANCE CORP SMART & FINAL WILSHIRE BANCORP KFORCE RUTH'S CHRIS STEAK HOUSE IKANOS COMMUNICATIONS TRUMP ENTERTAINM UNITED PANAM FINANCIAL VIRGINIA COMMERCE BNCORP LTC PROPERTIES ADVANCED ANALOGIC TECH. MONRO MUFFLER BRAKE SULPHCO INC MCMORAN EXPLORATION CO TRICO MARINE SER CASCADE BANCORP REDDY ICE HOLDINGS INC WILLBROS GROUP CONSOLIDATED COMM. CBEYOND COMMUNICATIONS HORIZON LINES INC RBC BEARINGS INC NARA BANCORP INTERCHANGE FINL SVCS WAUWATOSA HOLDINGS INC GENCO SHIPPING & TRADING MEDICAL PROPERTIES TRUST TRICO BANCSHARES JER INVESTORS TRUST DIRECTED ELEC YARDVILLE NAT'L BANCORP JAMES RIVER GROUP INC CENTER FINANCIAL CORP TRUE RELIGION AP NASH FINCH CO HEARTLAND FINANCIAL USA CORE MARK HOLDIN COLEY PHARMACEUTICAL GRP BLUEGREEN CORP MSCI US MICRO CAP INDEX Additions SEMITOOL OPLINK COMMUNICATIONS EMPIRE RESOURCES MWI VETERINARY SUPPLY I2 TECHNOLOGIES NEWKIRK REALTY TRUST SOMAXON PHARMACE UNION DRILLING STATE NAT'L BANCSHARES DRUGSTORE.COM OSI SYSTEMS ANAREN Page 4 of 6 Deletions RACKABLE SYSTEMS NUVELO NEWMARKET CORP NETLOGIC MICROSYSTEMS PACIFIC ETHANOL INC PARALLEL PETROLEUM CORP MEDIS TECHNOLOGIES ESCALA GROUP BANKRATE TRADESTATION GROUP AMERICAN SCIENCE & ENGR. ARENA PHARMACEUTICALS MSCI US Equity Indices - May 10, 2006 © MSCI 2006, All rights reserved. FEDERAL AGRICULT. MTG A FEDERAL AGRICULT. MTG C FIVE STAR QUALITY CARE REPUBLIC PROPERT ACCESS INTEGRATED TECH A ARDEN GROUP A PEGASYSTEMS TECHNOLOGY INV C DOT HILL SYSTEMS CORP DIAMOND FOODS INC TRIMERIS NXSTAGE MEDICAL INC HOME SOLUTIONS MAIDENFORM BRANDS INC GENOMIC HEALTH INC UNICA CORP QAD GLADSTONE CAP CO HANA BIOSCIENCES GOLF GALAXY INC KEITHLEY INSTR. COMMON GLADSTONE INVEST INTEGRATED SILICON SOL'N WORLDSPACE INC A ESCHELON TELECOM INC COMBINATORX INC UNITED RETAIL GROUP REPUBLIC COS GROUP INC FLOTEK INDS VOCUS INC NGP CAP RES CO MVC CAPITAL INC 4KIDS ENTERTAINMENT INTERLEUKIN GENETICS PIXELWORKS FINANCIAL INSTITUTIONS ARROWHEAD RESEARCH INSPIRE PHARMACEUTICALS NEOPHARM C&D TECHNOLOGIES WELLMAN METRETEK TECHNOLOGIES METABASIS THERAPEUTICS NCI INC A AMERISAFE INC WEBSITE PROS INC HOUSEVALUES SYNERGETICS USA ACCENTIA BIOPHARM. UNITED FINANCIAL BANCORP CLARK NAPCO SECURITY SYSTEMS HURCO COMPANIES INC INSITE VISION STURM RUGER & CO TRX INC CORVEL CORP GLOBAL POWER EQUIPMENT CANO PETROLEUM I LMI AEROSPACE UNIVERSAL STAINLESS &ALL HOOPER HOLMES CARIBOU COFFEE CO INC FIRST SECURITY GROUP TN PENN TREATY AMERICAN PURE CYCLE CORP SAGA COMMUNICATIONS A BTU INTERNATIONAL Page 5 of 6 ANDERSONS (THE) KENEXA CORP FIRST CASH FINL SVCS ASHFORD HOSPITALITY T. GREENBRIER COS RETAIL VENTURES ULTIMATE SOFTWARE GROUP AMERICAN VANGUARD CORP PALOMAR MEDICAL TECH BJ'S RESTAURANTS FIRST ACCEPTANCE CORP SMART & FINAL WILSHIRE BANCORP KFORCE UNITED PANAM FINANCIAL VIRGINIA COMMERCE BNCORP LTC PROPERTIES MONRO MUFFLER BRAKE MCMORAN EXPLORATION CO CASCADE BANCORP WILLBROS GROUP NARA BANCORP INTERCHANGE FINL SVCS GLOBAL SOURCES TRICO BANCSHARES YARDVILLE NAT'L BANCORP CENTER FINANCIAL CORP NASH FINCH CO HEARTLAND FINANCIAL USA BLUEGREEN CORP MSCI US Equity Indices - May 10, 2006 © MSCI 2006, All rights reserved. DUNE ENERGY TEMECULA VALLEY BANCORP REGENT COMMUNICATIONS QUANTA CAPITAL HLDGS DXP ENTERPRISES HALOZYME THERAP IMMUNOGEN CYNOSURE INC-A ROTECH HEALTHCAR HANDLEMAN CO CLINICAL DATA IN JONES SODA CO TWIN DISC INC TGC INDUSTRIES LADENBURG THALMANN MITCHAM INDUSTRIES DOCUMENT SECURITY SYST. AKORN COGDELL SPENCER INC TALEO CORP A AMERIGON LEGACY BANCORP INC/MA IMERGENT PATRIOT CAPITAL HYPERDYNAMICS CORP ADA-ES SUNESIS PHARMACEUTICALS GLOBIX CORP CUISINE SOLUTIONS INC ANTIGENICS MOVIE GALLERY This information is the property of Morgan Stanley Capital International Inc. (MSCI). It is provided for informational purposes only, and is not a recommendation to participate in any particular trading strategy. It may not be reproduced or redisseminated in any form without prior written permission from MSCI. This information may not be used to verify or correct data, or any compilation of data or index or in the creation of any indices. 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