Howard Hughes Holdings Inc. (NYSE: HHH) will replace Arcosa Inc. (NYSE: ACA) in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, October 28. S&P 500 constituent CRH plc (NYSE: CRH) has acquired Arcosa in a deal that closed today, October 23.

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 28, 2026 S&P SmallCap 600 Addition Howard Hughes Holdings HHH Real Estate October 28, 2026 S&P SmallCap 600 Deletion Arcosa ACA Industrials

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