BlockBeats News, May 21st, according to Alternative Data, today's cryptocurrency Fear and Greed Index is 29 (yesterday was 27), indicating the market sentiment remains in "Fear".

Note: The Fear and Greed Index ranges from 0 to 100 and includes the following indicators: Volatility (25%) + Market Trading Volume (25%) + Social Media Hype (15%) + Market Surveys (15%) + Bitcoin's Dominance (10%) + Google Trends Analysis (10%).