 Argo Blockchain PLC LSE:ARB, OTCQX:ARBKF, NASDAQ:ARBK, ETR:0XP may be set to double in value according to stockbroker finnCap which has upgraded the London-listed Bitcoin miner after todays positive third-quarter update. On Tuesday, Argo reported record revenue in the third quarter, bringing in some US26mln, along with US17.3mln of net income and US28.2mln of earnings EBITDA as cryptocurrency prices enjoyed a strong rally through the three-month period. 