S&P 500 Index
Broad U.S. equity benchmark, daily
The S&P 500 is the market’s primary risk barometer. It aggregates growth expectations, earnings, inflation/discount-rate dynamics, and liquidity into one price. When the index rallies with tightening credit spreads and easing financial conditions, risk appetite is healthy; when it sells off alongside widening spreads, the macro regime is turning defensive.
Historical S&P 500 Chart
Related Indicators
How to interpret the S&P 500
Earnings x multiple
The index is the product of earnings expectations and valuation multiples. Multiples are heavily influenced by rates and liquidity; earnings are influenced by growth and margins. When yields rise, multiples can compress even if earnings hold.
Breadth and leadership
It’s useful to watch whether rallies are broad or concentrated. Narrow leadership can signal fragile risk appetite, while broad participation usually indicates healthier underlying conditions.
Credit confirmation
The cleanest confirmation comes from credit. If the S&P is rallying but high yield spreads are widening, the rally may be vulnerable. If spreads tighten and NFCI eases, risk-on is more durable.
Cross-checks
Pair the index with Fed Funds, the 10-year yield, high yield spreads, and inflation (Core PCE). Those variables largely determine the discount rate regime.
Current Reading
Interpreting the Signal
Best cross-checks
Look at credit spreads and long yields. The S&P can rally on “rate cuts” pricing, but it usually needs stable credit to sustain the move.
Release Notes
Updated daily. Large moves often occur around CPI, payrolls, and FOMC events as discount-rate expectations reprice.
- Frequency: Daily
- Unit: Index
- Benchmark: Broad U.S. equities