The London-based cryptocurrency miner, Argo Blockchain (NASDAQ:ARBK) (GB:ARB), is under duress as its mining operations continue to weaken. Roth Capital analyst Darren Aftahi remains concerned about the elevated oil and gas prices at its Helios, Texas mining facility. The higher prices are impacting the company's margins. ARBK stock has plunged 84.1% so far this year. Amid the operational limitations, the company announced the exit of Perry Hothi, its Chief Technology Officer. Moreover, Argo shocked investors with its plan to increase liquidity by raising ~$27 million through an additional share sale to a strategic investor.
