Mirion Technologies Set to Join S&P SmallCap 600

NEW YORK, Sept. 4, 2025 /PRNewswire/ -- Mirion Technologies Inc. (NYSE: MIR) will replace GMS Inc. (NYSE: GMS) in the S&P SmallCap 600 effective prior to the opening of trading on Tuesday, September 9. S&P 500 and 100 constituent Home Depot Inc. (NYSE: HD) acquired GMS in a deal that was completed today.

Following is a summary of the change 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:

S&P Dow Jones Indices
index_services@spglobal.com

Media Inquiries
spdji.comms@spglobal.com

View original content:https://www.prnewswire.com/news-releases/mirion-technologies-set-to-join-sp-smallcap-600-302547135.html

SOURCE S&P Dow Jones Indices