[Crypto Fear Index Rises to 28, Entering 'Fear' Zone] On December 3, data from Alternative shows that the Crypto Fear and Greed Index is at 28 (previously 23 yesterday), indicating the market has recovered from the 'Extreme Fear' zone to the 'Fear' zone. The Fear Index ranges from 0-100 and is calculated based on factors such as volatility, market trading volume, social media sentiment, market surveys, Bitcoin market dominance, and Google keyword analysis.