S&P Dow Jones Indices announced on October 23, 2026 that Howard Hughes Holdings Inc. will be added to the S&P SmallCap 600, effective prior to the opening of trading on Wednesday, October 28, 2026, replacing Arcosa Inc. following its acquisition by CRH plc.

Key Highlights

  • Addition effective date: Howard Hughes Holdings Inc. (NYSE:HHH) joins the S&P SmallCap 600 prior to the open of trading on October 28, 2026.
  • GICS sector assignment: Howard Hughes Holdings is classified under the Real Estate sector in the index.
  • Deletion: Arcosa Inc. (NYSE:ACA), classified in the Industrials sector, is removed from the S&P SmallCap 600 on the same effective date.
  • Reason for change: S&P 500 constituent CRH plc (NYSE:CRH) acquired Arcosa in a deal that closed October 23, 2026, triggering the index change.

Howard Hughes Holdings to Enter S&P SmallCap 600 as Arcosa Exits After CRH Acquisition

According to the announcement from S&P Dow Jones Indices, Howard Hughes Holdings Inc., listed on NYSE under the ticker HHH and classified under the Real Estate GICS sector, will be added to the S&P SmallCap 600 index. The change takes effect prior to the opening of trading on Wednesday, October 28, 2026.

The filing disclosed that the addition is a direct result of the removal of Arcosa Inc. (NYSE:ACA), which had been a component of the S&P SmallCap 600 in the Industrials sector. Arcosa's deletion was triggered by its acquisition by CRH plc (NYSE:CRH), an S&P 500 constituent, in a transaction that the announcement stated closed on October 23, 2026, the same day the notice was issued.

S&P Dow Jones Indices, a division of S&P Global (NYSE:SPGI), administers the S&P SmallCap 600. The index change summary provided in the release lists two simultaneous actions on October 28, 2026: the addition of Howard Hughes Holdings and the deletion of Arcosa, both prior to the market open on that date.

What Was Disclosed

S&P Dow Jones Indices disclosed that Howard Hughes Holdings Inc. (NYSE:HHH) will replace Arcosa Inc. (NYSE:ACA) in the S&P SmallCap 600, effective October 28, 2026, following Arcosa's acquisition by CRH plc, which closed October 23, 2026.