The cryptocurrency Fear & Greed Index has plummeted into the extreme fear territory following the crash in Bitcoin and other assets. Bitcoin Fear & Greed Index Is Now Pointing At “Extreme Fear” The “Fear & Greed Index” is an indicator created by Alternative that uses the data of several factors to determine the net sentiment present among traders in the Bitcoin and wider cryptocurrency markets. The factors in question include volatility, trading volume, market cap dominance, social media sentiment, and Google Trends. The index makes use of a scale running from 0-100 for representing the investor mentality
source: https://www.newsbtc.com/bitcoin-news/bitcoin-crashes-105000-sentiment-sinks-extreme-fear/