What the Fear & Greed Index measures
CNN's Fear & Greed Index is a composite sentiment indicator that combines 7 different market signals into a single 0-100 scale. Zero represents extreme fear, 100 represents extreme greed. The components include market momentum (price vs 125-day moving average), stock price strength (52-week highs vs lows), safe haven demand (bond vs stock returns), put/call ratio, VIX, junk bond demand, and market breadth.
The composite approach makes it more robust than any single indicator. A reading below 20 (extreme fear) signals that multiple independent measures simultaneously indicate excessive pessimism. Historically, extreme fear readings have been followed by above-average returns over the next 3-6 months.
Extreme greed (above 80) signals widespread optimism and complacency across multiple measures simultaneously. While markets can remain in extreme greed for months, the risk/reward for new long positions is historically poor — limited upside if the complacency is justified, and significant downside if a catalyst breaks the mood.
Fear and greed indicators are not trend-following tools — they identify sentiment extremes that are likely to revert. Using them to add to positions in the direction of an extreme (buying more because everyone is bullish) is the wrong application. Using them to identify when the crowd is maximally wrong is the right one.
The seven components
Market momentum compares the S&P 500 to its 125-day moving average. A significant premium to the MA signals overbought conditions; a discount signals oversold. Stock price strength tracks how many stocks are hitting 52-week highs versus lows on the NYSE — broad participation (many new highs) is healthy; narrow markets with few new highs signal weakening breadth.
Safe haven demand compares bond versus stock returns over 20 days — a flight to bonds suggests fear. The VIX component directly incorporates options market fear. Junk bond demand measures the yield spread between high-yield and investment-grade corporate bonds — tightening spreads signal greed, widening signals fear.
Put/call ratio (discussed in the previous lesson) and market breadth (advancing vs declining stocks) round out the composite. The breadth component is particularly useful because broad selling (most stocks declining, not just index heavyweights) indicates genuine market stress rather than rotation.
Using Fear & Greed in practice
The most actionable application: set alerts for extreme readings (below 20 or above 80) and combine them with structural analysis. Extreme fear at a key volume profile support level or a major multi-year VPOC is a high-conviction long setup. Extreme greed at a prior all-time high with weakening breadth is a caution flag for longs.
Don't trade the indicator in isolation — use it as a weighting factor for your directional bias. If you're planning to buy a dip and Fear & Greed is at 15 (extreme fear), you can size more aggressively and hold longer. If you're buying a dip and Fear & Greed is at 75 (greed), the same setup gets smaller size and a tighter stop.
Track the direction of change as much as the absolute reading. Moving from extreme fear to neutral over several weeks is often the most powerful price action period — the short squeeze and fear unwind happening simultaneously. Tracking the rate of change in sentiment can signal these acceleration phases.