NEW YORK, March 4, 2025 /PRNewswire/ -- Albertsons Companies Inc. (NYSE: ACI) will replace Aspen Technology Inc. (NASD: AZPN) in the S&P MidCap 400 effective prior to the opening of trading on Tuesday, March 11. S&P 500 constituent Emerson Electric Co. (NYSE: EMR) is acquiring Aspen Technology 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:

Effective Date 

Index Name        

Action 

Company Name 

Ticker 

GICS Sector 

March 11, 2025  

S&P MidCap 400  

Addition  

Albertsons Companies

ACI  

Consumer Staples  

March 11, 2025  

S&P MidCap 400  

Deletion  

Aspen Technology  

AZPN  

Information Technology  

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