Exponent Set to Join S&P MidCap 400; CVR Energy and Certara to Join S&P SmallCap 600

NEW YORK, March 15, 2023

• 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:

Effective Date	Index Name		Action	Company Name	Ticker ARIVA.DE Börsen-Geflüster Kurse Apollo Gl. M 112,22 $ +0,30% Atlas Air Worldwide -   0,00% Certara 16,57 $ +1,66% CVR Energy 33,22 $ -0,48% Exponent 95,21 $ +19,5% IAA -   0,00% Ritchie Brothers Auctioneers -   0,00% S&P Global Inc 415,78 $ +0,07%	GICS Sector
March 21, 2023	S&P SmallCap 600	Addition		CVR Energy	CVI	Energy
	S&P SmallCap 600	Deletion		Atlas Air Worldwide Holdings	AAWW	Industrials
March 22, 2023	S&P MidCap 400	Addition		Exponent	EXPO	Industrials
	S&P MidCap 400	Deletion		IAA	IAA	Industrials
	S&P SmallCap 600	Addition		Certara	CERT	Health Care
	S&P SmallCap 600	Deletion		Exponent	EXPO	Industrials

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