NEW YORK, Sept. 4, 2026 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P 500, S&P 100, S&P MidCap 400, and S&P SmallCap 600 indices effective prior to the open of trading on Monday, September 21, 2026, to coincide with the quarterly rebalance. The changes ensure that each index is more representative of its market capitalization range. The companies being removed from the S&P SmallCap 600 are no longer 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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