U.S. Macro Indicator
Continuously updated series (no discrete release)
Latest reading: 36.9 % (2026-07-23).
Top-10 constituent weight of the S&P 500 (via SPY ETF holdings) — a market-concentration gauge. Rising concentration means index-level strength can mask weaker breadth among the remaining constituents, making the index more sensitive to a handful of mega-cap earnings and valuations.
| Period | Value | |
|---|---|---|
| 2026-07-23 | 36.9 % | |
| 2026-07-16 | 37.7 % | |
| 2026-07-09 | 37.3 % |