10-day realized volatility hits its lowest since just before Bitcoin price fell to $3,100 in late 2018, sparking fresh bearish fears.
Source: https://cointelegraph.com/news/bitcoin-realized-volatility-last-did-this-right-before-2018-sell-off
Bitcoin Realized Volatility Last Did This Right Before 2018 Sell-Off
July 6, 2020
CoinTelegraph