#4 · Top-10 Concentration
Latest
43.85%
Min
30.25%
Max
43.85%
Data points
356
Creator threshold
Creator: red-triggered; the top-10 weight has reached a distorted ~39.3%.
Historical state distribution2025-06-13 → 2026-10-07
| Triggered | 186 | 52.2% |
| Warning | 98 | 27.5% |
| Not triggered | 72 | 20.2% |
Combined market-cap weight of the ten largest S&P 500 companies. When an index rally is carried by a handful of mega-caps while breadth deteriorates, the structure is fragile: if the leaders stall, the index cascades.
Terminal data · market-cap batch ÷ S&P 500 total