NEW YORK, Feb. 13, 2013 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the the S&P SmallCap 600 index after the close of trading on Tuesday, February 19:

• MB Financial Inc. (NASD:MBFI) will replace Robbins & Myers, Inc. (NYSE:RBN). S&P 100 & 500 constituent National Oilwell Varco Inc. (NYSE:NOV) is acquiring Robbins & Myers in a deal expected to be completed soon pending final approvals.
• C&J Energy Services Inc. (NYSE:CJES) will replace PSS World Medical Inc. (NASD:PSSI). S&P 500 constituent McKesson Corp. (NYSE:MCK) is acquiring PSS World Medical in a deal expected to be completed soon pending final approvals.                                               

MB Financial offers commercial banking products and services. Headquartered in Chicago, IL, the company will be added to the S&P SmallCap 600 GICS (Global Industry Classification Standard) Regional Banks Sub-Industry index.

C&J Energy Services provides hydraulic fracturing, coiled tubing, and pressure pumping services. Headquartered in Houston, TX, the company will be added to the S&P SmallCap 600 GICS Oil & Gas Equipment & Services Sub-Industry index.

Following is a summary of the changes:

Additions to and deletions from S&P Dow Jones Indices do not in any way reflect an opinion on the investment merits of the companies involved.

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For more information:

Dave Guarino
Communications
S&P Dow Jones Indices
dave_guarino@spdji.com 
(201) 755-5334

David Blitzer
Managing Director and Chairman of the Index Committee
S&P Dow Jones Indices
david_blitzer@spdji.com
(917) 376-1204

SOURCE S&P Dow Jones Indices