The three core engines that drive the stock market
While individual stocks are subject to company-specific news, the aggregate stock market (represented by benchmarks like the S&P 500 and Nasdaq-100) is governed by massive macro-level financial forces.
| Market Engine | Key Catalysts | Impact on Equities |
|---|---|---|
| 1. Monetary Policy & Liquidity | Federal Reserve policy, interest rate hikes/cuts, Quantitative Easing / Tightening (QE/QT) | Controls money supply; lower rates expand equity valuation multiples, higher rates compress multiples |
| 2. Corporate Earnings & Economy | Aggregate S&P 500 EPS, GDP growth, industrial output, corporate profit margins | Determines the underlying earnings base upon which stock valuations are built |
| 3. Market Sentiment & Risk Appetite | VIX Volatility Index, retail vs. institutional positioning, credit spreads, geopolitical stability | Drives sharp short-to-medium term expansions (bull runs) and contractions (panics/corrections) |