Charles River Laboratories International Set to Join S&P 500; Others to Join S&P MidCap 400 and S&P SmallCap 600

NEW YORK, May 10, 2021 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P 500, S&P MidCap 400, and S&P SmallCap 600:

• S&P MidCap 400 constituent Charles River Laboratories International (NYSE:CRL) will replace FLIR Systems Inc. (NASD:FLIR) in the S&P 500, S&P SmallCap 600 constituent National Storage Affiliates Trust (NYSE:NSA) will replace Charles River Laboratories International in the S&P MidCap 400, and Ellington Financial Inc. (NYSE:EFC) will replace National Storage Affiliates Trust in the S&P SmallCap 600 effective prior to the opening of trading on Friday, May 14. S&P 500 constituent Teledyne Technologies Inc. (NYSE:TDY) is acquiring FLIR Systems in a deal to be completed soon pending final closing conditions.

• Aspen Technology Inc. (NASD:AZPN) will replace Avanos Medical Inc. (NYSE:AVNS) in the S&P MidCap 400, and Avanos Medical will replace Aegion Corp. (NASD:AEGN) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, May 17. New Mountain Capital LLC is acquiring Aegion in a deal expected to be completed soon pending final closing 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

ABOUT S&P DOW JONES INDICES

S&P Dow Jones Indices is the largest global resource for essential index-based concepts, data and research, and home to iconic financial market indicators, such as the S&P 500® and the Dow Jones Industrial Average®. More assets are invested in products based on our indices than products based on indices from any other provider in the world. Since Charles Dow invented the first index in 1884, S&P DJI has been innovating and developing indices across the spectrum of asset classes helping to define the way investors measure and trade the markets.

S&P Dow Jones Indices is a division of S&P Global (NYSE: SPGI), which provides essential intelligence for individuals, companies, and governments to make decisions with confidence. For more information, visit www.spdji.com.

FOR MORE INFORMATION:

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SOURCE S&P Dow Jones Indices

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