What is the Fear and Greed Index? Definition, Formula, and Example
The Fear and Greed Index is a composite market sentiment gauge that scores investor psychology from 0 (extreme fear) to 100 (extreme greed) using seven equally-weighted indicators of price action, volatility, and breadth.
Plain-English Definition
The Fear and Greed Index is a composite sentiment indicator, published daily by CNN Business, that scores broad-market investor psychology on a scale of 0 to 100. A reading of 0 signals extreme fear; 100 signals extreme greed; 50 is neutral. The index aggregates seven equally-weighted sub-indicators that span price momentum, volatility, breadth, options positioning, and credit spreads to produce a single number designed to summarize whether the equity market is in panic or euphoria.
How It Is Calculated
Each of the seven inputs is normalized to a 0–100 score and averaged. The seven components:
1. Market Momentum — S&P 500 versus its 125-day moving average.
2. Stock Price Strength — net 52-week highs minus 52-week lows on NYSE.
3. Stock Price Breadth — McClellan Volume Summation Index of advancing vs declining volume.
4. Put/Call Ratio — 5-day average CBOE equity put/call ratio.
5. Market Volatility — VIX versus its 50-day moving average.
6. Safe Haven Demand — 20-day return difference between stocks (S&P 500) and Treasury bonds.
7. Junk Bond Demand — yield spread between high-yield and investment-grade corporate bonds.
Composite = arithmetic mean of the seven scores. The published score is bucketed: 0–24 Extreme Fear, 25–44 Fear, 45–55 Neutral, 56–75 Greed, 76–100 Extreme Greed.
Worked Example
A 2026-05-12 reading constructed from public inputs:
| Component | Reading | Score |
|---|---|---|
| Momentum: SPY 7% above 125-day MA | Greed | 78 |
| 52-week highs vs lows: 145 vs 28 on NYSE | Greed | 72 |
| McClellan Volume Summation: +3,200 | Greed | 68 |
| Put/Call ratio (5-day): 0.65 | Greed | 60 |
| VIX 14 vs 50-day MA of 17 | Greed | 70 |
| Stocks +4.2% vs bonds -0.8% (20d) | Greed | 75 |
| HY spread 280 bp vs IG | Neutral | 50 |
| Composite | Greed | ~67 |
The index reads in greed territory — historically a regime where forward 30-day returns are below average and drawdown risk is elevated.
When Traders Use It
The Fear and Greed Index is a contrarian timing tool. Readings below 25 (extreme fear) have coincided with the March 2020 COVID low, the December 2018 Fed-pivot low, and the October 2022 CPI low — each a medium-term equity bottom. Readings above 75 (extreme greed) have preceded the February 2020, July 2023, and January 2022 pullbacks. Portfolio managers reduce gross exposure on extreme-greed prints and add risk on extreme-fear prints, typically scaling positions over multiple sessions rather than reversing in one day.
Limitations and Misconceptions
The index is a coincident-to-lagging measure, not a forecast. It tells you where sentiment is *right now*, not where price goes next. Components are equally weighted regardless of regime — during a credit crisis the junk bond component carries more signal than during an equity-only correction, but the formula ignores this. The index is also a US-equity construct; it says nothing about commodities, rates, or non-US equities. Finally, "extreme" readings can persist for months in a strong trend — the index hit extreme greed in January 2017 and stayed there for most of the year as the S&P 500 rallied another 18%.