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:
| Effective Date | Index Name | Action | Company Name | Ticker | GICS Sector |
| October 6, 2025 | S&P MidCap 400 | Addition | Bentley Systems | BSY | Information Technology |
| October 6, 2025 | S&P MidCap 400 | Deletion | Western Union | WU | Financials |
| October 6, 2025 | S&P SmallCap 600 | Addition | Western Union | WU | Financials |
| October 6, 2025 | S&P SmallCap 600 | Deletion | Mr. Cooper Group | COOP | Financials |
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