shares of iris energy ltd which owns and operates bitcoin mining data centers powered by 100 renewable energy were trading lower in wednesdays afterhours session following the release of secondquarter financial results which showed a decline in bitcoin mining revenue at 607 pm et the companys shares had fallen 1532 to trade at 362 per share the stock finished the days regular session with a 6699 gain closing at 427 per share after the bell the company said secondquarter bitcoin mining revenue was 138 million below the 162 million reported in the prior quarter primarily driven by reduction in the number of bitcoin mined and decrease in the bitcoin price the company said it mined 722 bitcoin in the second quarter compared to 780 bitcoin in the first quarter iris energy also said it had electricity costs of 74 million above the 66 million in the first quarter in the second quarter iris energy reported a net loss after income tax of 144 million compared to a 179 million loss in the first quarter