What is the Fear & Greed Index?
It is a composite sentiment score, bounded from a fear extreme to a greed extreme and split into labelled bands. The score blends inputs such as volatility, momentum, and survey or social signals into one number that summarizes prevailing mood.
How it is calculated
The index combines several weighted sentiment components into one bounded score. The page follows the daily value so you can see the mood swing over time rather than a single reading in isolation.
How to read it
Extreme fear reflects widespread pessimism and has historically overlapped with local bottoms, which is why some treat it as a contrarian buy context. Extreme greed reflects euphoria and crowding. The index is a mood gauge, not a mechanical signal.
What it does not tell you
Sentiment can stay extreme longer than expected, and the index says nothing about valuation or flows. It is context, not a trigger. Live values are in the authenticated app.