Shares of Stronghold Digital Mining (SDIG) tumbled more than 25% in after-hours trading on Tuesday after the bitcoin miner that uses waste coal for energy reported a fourth-quarter revenue and loss that both came in well short of analysts’ average estimate.
![The State of Eth2, Jan 2021 [ENG/普通话]](https://storage.googleapis.com/ethereum-hackmd/upload_47c90a1331094cf794adf6539a7f8205.jpg "The State of Eth2, Jan 2021 [ENG/普通话]")
