Vertiv Holdings, Lumentum Holdings, Coherent, and EchoStar Set to Join S&P 500; Others to Join S&P 100, S&P MidCap 400, and S&P SmallCap 600

NEW YORK, March 6, 2026 /PRNewswire/ — S&P Dow Jones Indices („S&P DJI“) will make the following changes to the S&P 100, S&P 500, S&P MidCap 400, and S&P SmallCap 600 indices:

• NAPCO Security Technologies Inc. (NASD: NSSC) will replace Alexander & Baldwin Inc. (NYSE: ALEX) in the S&P SmallCap 600 effective prior to the opening of trading on Friday, March 13. An investor group comprised of MW Group and funds affiliated with DivcoWest and Blackstone Real Estate is acquiring Alexander & Baldwin in a deal that is expected to close soon, pending final closing conditions.
• The following changes to the S&P 100, S&P 500, S&P MidCap 400, and S&P SmallCap 600 will take effect before the market opens on Monday, March 23, as part of the quarterly rebalance. The changes ensure that each index is more representative of its market–capitalization range. The companies being removed from the S&P SmallCap 600 are no longer representative of the small–cap market space.

Following is a summary of the changes that will take place prior to the open of trading on the effective date:

ABOUT S&P DOW JONES INDICES