NEW YORK, March 15, 2023 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P MidCap 400 and S&P SmallCap 600: 

• CVR Energy Inc. (NYSE: CVI) will replace Atlas Air Worldwide Holdings Inc. (NASD: AAWW) in the S&P SmallCap 600 effective prior to the opening of trading on Tuesday, March 21. Apollo Global Management Inc. (NYSE: APO) is acquiring Atlas Air Worldwide Holdings in a transaction expected to close soon pending final conditions.
   
• S&P SmallCap 600 constituent Exponent Inc. (NASD: EXPO) will replace IAA Inc. (NYSE: IAA) in the S&P MidCap 400, and Certara Inc. (NASD: CERT) will replace Exponent in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, March 22. Ritchie Bros. Auctioneers Inc. (TSX/NYSE: RBA) is acquiring IAA in a transaction expected to close soon pending final conditions.

Following is a summary of the changes that will take place prior to the open of trading on the effective date:

For more information about S&P Dow Jones Indices, please visit www.spdji.com

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