Krystal Biotech Set to Join S&P MidCap 400; Tutor Perini and V2X to Join S&P SmallCap 600

S&P Dow Jones Indices will make the following changes to the S&P MidCap 400, S&P SmallCap 600: S&P SmallCap 600 constituent Krystal Biotech Inc. will replace Taylor Morrison Home Corp. in the S&P MidCap 400, and Tutor Perini Corp. will replace Krystal Biotech in the S&P SmallCap 600 effective prior to the opening of trading on Friday, July 24. S&P 500 & 100 constituent Berkshire Hathaway Inc. is acquiring Taylor Morrison Home in a deal expected to close on or about that date, pending final closing conditions. V2X Inc. will replace Avanos Medical Inc. in the S&P SmallCap 600 effective prior to the opening of trading on Monday, July 27. American Industrial Partners is acquiring Avanos Medical in a deal expected to close soon, pending final closing conditions. 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

July 24, 2026 S&P MidCap 400 Addition Krystal Biotech KRYS Health Care

July 24, 2026 S&P MidCap 400 Deletion Taylor Morrison Home TMHC Consumer Discretionary

July 24, 2026 S&P SmallCap 600 Addition Tutor Perini Corp TPC Industrials

July 24, 2026 S&P SmallCap 600 Deletion Krystal Biotech KRYS Health Care

July 27, 2026 S&P SmallCap 600 Addition V2X VVX Industrials

July 27, 2026 S&P SmallCap 600 Deletion Avanos Medical AVNS Health Care

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