Odaily News According to order flow data tracked by Amberdata, as the price of Bitcoin rose, buying activity for Bitcoin call options with a strike price of $75,000 and above on Deribit surged, and investors also sold put options. Greg Magadini, director of derivatives at Amberdata, said: "This flow pattern indicates a bullish outlook for Bitcoin spot prices (due to put option selling), while also expecting price volatility to accelerate." (Coindesk)