IMAP Podcast Series - Independent Thought
Episode 50: What does owning the S&P500 actually mean in 2026?
Aug 18, 2026
Lucie Bradley
Our host Emily Barlow (Evidentia Private) is joined by Amit Pathak (S&P Dow Jones Indices) to discuss:
- S&P 500's cap-weighting naturally tilting toward AI leaders
- How the Top 10 holdings now make up ~40% of the index, up from 18% a decade ago
- Active investors still driving price discovery
- How companies are choosing to stay private longer, yet the S&P 500 still captures the largest, most liquid slice of the U.S. market.
- Index providers prioritising rules-based methodology over predicting winners