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ARCHIVE
Every S&P Index change, with the price reaction
One page for each announcement: who joined, who left, and what the share prices did in the minutes and hours after the news.
Effective
July 23, 2026 at 5:00:00 PM
S&P index changes, July 2026: Krystal Biotech
On 20 July 2026, S&P Dow Jones Indices announced 6 index changes affecting 5 companies in the S&P MidCap 400 and S&P SmallCap 600. The most notable move was Krystal Biotech joining the S&P MidCap 400 from the S&P SmallCap 600.
Effective
July 21, 2026 at 5:00:00 PM
S&P index changes, July 2026: Molina Healthcare
On 16 July 2026, S&P Dow Jones Indices announced 4 index changes affecting 3 companies in the S&P MidCap 400 and S&P SmallCap 600. The most notable move was Molina Healthcare joining the S&P MidCap 400 from the S&P SmallCap 600.
Effective
July 16, 2026 at 5:00:00 PM
S&P index changes, July 2026: BrightSpring Health Services
On 14 July 2026, S&P Dow Jones Indices announced 4 index changes affecting 3 companies in the S&P MidCap 400 and S&P SmallCap 600. The most notable move was BrightSpring Health Services joining the S&P MidCap 400 from the S&P SmallCap 600.
Effective
June 28, 2026 at 5:00:00 PM
S&P index changes, June 2026: Honeywell Aerospace
On 23 June 2026, S&P Dow Jones Indices announced 12 index changes affecting 10 companies in the S&P 100, S&P 500, S&P MidCap 400 and S&P SmallCap 600. The most notable move was Honeywell Aerospace joining the S&P 100 and S&P 500.
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