NEW YORK, July 16, 2026 /PRNewswire/ -- S&P SmallCap 600 constituent Molina Healthcare Inc. (NYSE: MOH) will replace National Storage Affiliates Trust (NYSE: NSA) in the S&P MidCap 400, and Construction Partners Inc. (NASD: ROAD) will replace Molina Healthcare in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, July 22. S&P 500 constituent Public Storage (NYSE: PSA) is acquiring National Storage Affiliates Trust in a deal that is expected to be completed on or about that date pending final conditions.