Bitcoin Mining Profitability Starts Falling After Stellar Year: Research

But between Nov. 9 and Dec. 22, cash flows from bitcoin mining using Bitmain’s Antminer S19 have decreased by 36%, Jaran Mellerud, a researcher at Norway-based Arcane, told CryptoX. For the S9 they’ve dropped 50%, he said. Mellerud attributed the slide to “a 28% drop in the bitcoin price over the same period, coupled with a 12% increase in [mining] difficulty.”