According to the source, the Crypto Fear and Greed Index reads 71 today, signaling Greed and up from 50 Neutral seven days ago, indicating a sharp bullish sentiment shift, source: Alternative.me. The index aggregates volatility, market momentum and volume, social media activity, Bitcoin BTC dominance, and Google Trends into a 0 to 100 score where higher values reflect greed, source: Alternative.me. Alternative.me cautions that when investors are getting too greedy the market may be due for a correction, while extreme fear can present buying opportunities, source: Alternative.me. For trading, a Greed reading above 70 flags sentiment overheating, so traders often tighten risk on momentum longs and watch BTC pairs for potential pullback volatility, source: Alternative.me.