Greed Index

A sentiment indicator, most commonly CNN's Fear and Greed Index, that aggregates multiple market signals -- including volatility, momentum, safe haven demand, and put/call ratios -- into a single score from 0 (extreme fear) to 100 (extreme greed). Contrarian investors use it as a timing tool, since Warren Buffett's famous advice is to "be fearful when others are greedy and greedy when others are fearful."