Core Insights - Vertiv, Lumentum, EchoStar, and Coherent are set to join the S&P 500 on March 23 as part of a quarterly rebalancing [1] Company Summaries - Vertiv is recognized for its critical digital infrastructure solutions [1] - Lumentum specializes in optical and photonic products [1] - EchoStar provides satellite communication solutions [1] - Coherent is known for its laser technology and photonics [1]

Core Insights - Four companies identified by KBW analyst Shreyank Gandhi are among the largest not included in the index [1] Group 1 - The companies were selected from a list compiled by the analyst [1]