Bentley Systems Set to Join S&P MidCap 400 and Western Union to Join S&P SmallCap 600

NEW YORK, Oct. 1, 2025 /PRNewswire/ — Bentley Systems Inc. (NASD: BSY) will replace Western Union Co. (NYSE: WU) in the S&P MidCap 400, and Western Union will replace Mr. Cooper Group Inc. (NASD: COOP) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, October 6. Rocket Companies Inc. (NYSE: RKT) acquired Mr. Cooper Group in a deal that closed today, October 1. Western Union’s market capitalization is more representative of the small-cap market space.

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

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