GRIZZLY BULLS RESEARCH
S&P 500 concentration research snapshot
Data through June 30, 2026
38.15%
Top-10 index weight
June 2025
4.7 pp
Cap minus earnings gap
March 2026
2.0x
Top-10 forward-P/E spread
June 2026
-0.04
Correlation excluding 1965
Six historical decade starts