Bitmine Immersion Technologies, Inc. (AMEX:BMNR) shares tumbled on Thursday, erasing an entire month’s worth of gains, as cryptocurrencies fell below key levels. However, Tom Lee‘s Ethereum (CRYPTO: ETH) treasury company maintained gains of nearly 600% since its June debut. BMNR stock is down. See the real-time price action here. Crypto DropsOver the last five days, Bitmine stock has fallen more than 16% as crypto markets hit the brakes, with Ethereum dropping below the critical $4,000 level. The correction ...