NEW YORK, June 9, 2011 /PRNewswire/ -- OYO Geospace Corp. (NASD: OYOG) will replace LaBranche & Co Inc. (NYSE: LAB), and NuVasive Inc. (NASD: NUVA) will replace American Medical Systems Holdings Inc. (NASD: AMMD) in the S&P SmallCap 600 index after the close of trading on Wednesday, June 15. S&P MidCap 400 constituent Endo Pharmaceuticals Holdings Inc. (NASD: ENDP) is acquiring American Medical Systems Holdings, and S&P TMI constituent Cowen Group Inc. (NASD: COWN) is acquiring LaBranche in deals expected to be completed on or about that date pending final approvals.
Standard & Poor's will monitor these transactions, and post any relevant updates on its website: www.standardandpoors.com.
OYO Geospace designs and manufactures instruments and equipment used in the acquisition and processing of seismic data. Headquartered in Houston, TX, the company will be added to the S&P SmallCap 600 GICS (Global Industry Classification Standard) Oil & Gas Equipment & Services Sub-Industry index.
NuVasive designs, develops, and markets products for the surgical treatment of spine disorders. Headquartered in San Diego, CA, the company will be added to the S&P SmallCap 600 GICS Health Care Equipment Sub-Industry index.
Following is a summary of the changes:
S&P SMALLCAP 600 INDEX - June 15, 2011
GICS ECONOMIC SECTOR
Oil & Gas Equipment & Services
Health Care Equipment
LaBranche & Co.
Investment Banking & Brokerage
American Medical Systems Holdings
Health Care Equipment
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SOURCE Standard & Poor's