Howard Hughes Holdings Inc. is set to replace Arcosa Inc. in the S&P SmallCap 600, effective before the market opens on Wednesday, October 28, 2026. The change follows Arcosa’s removal from the index.
According to the PR Newswire release, Arcosa is acquired by S&P 500 constituent CRH plc as part of a deal that leads to Arcosa’s index replacement. The Seeking Alpha piece centers on the same expected index adjustment, focusing on the S&P SmallCap 600 constituentship change for Howard Hughes Holdings.
Overall, the reporting aligns on the key mechanics—Howard Hughes Holdings joining the SmallCap 600, Arcosa being replaced, and the effective timing—while PR Newswire adds the corporate context that CRH’s acquisition of Arcosa is the driver.
