The Bitcoin Cash mining profitability has recently ticked upward, reaching parity with BTC. Soon after, a decrease in difficulty, coupled with a Korean-led price surge, made bitcoin cash mining 240% more profitable than bitcoin. This caused hashpower to pour into the BCH network. Two days, major mining pools such as AntPool begun mining bitcoin cash, enabling its network to claim more than one-third of the total hashpower.
Yesterday, the bitcoin cash hashrate share increased to 43% and is just 7% away from reaching parity with bitcoin. However, the upcoming difficulty adjustment will make it much harder to find BCH blocks, a prospect that could make the BCH chain go through technical difficulties.