NEW YORK , April 2, 2026 /PRNewswire/ -- Atmus Filtration Technologies Inc. (NYSE: ATMU) will replace Air Lease Corp. (NYSE: AL) in the S&P SmallCap 600 effective prior to the opening of trading on Thursday, April 9. Sumitomo Corporation & Consortium are acquiring Air Lease Corp 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:

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