[Crypto Fear Index Drops to 20, Market in Extreme Fear] On January 1, according to Alternative data, the Crypto Fear and Greed Index is at 20 today (21 yesterday), indicating the market is in a state of extreme fear. The index ranges from 0 to 100 and is calculated based on factors such as volatility, market trading volume, social media activity, market surveys, Bitcoin market dominance, and Google trend analysis.