Market Trends - Bitcoin rebounded to $91,100 [1] - Ethereum increased above $3,000 [1] Sentiment Analysis - Extreme fear in the crowd may signal a likely market rise [1] - Extreme greed in the crowd may signal a likely market fall [1] Trading Strategy - The industry should monitor social media discussion data for mood swings from retail traders [1] - The industry can profit from counter-signals in crypto [1]