On Tuesday, shares of companies tied to Bitcoin fell broadly in premarket trading as Bitcoin dropped below the $63,000 level. Ethereum also declined more than 2%, trading at $1,814.6. At the time of writing, MicroStrategy (MSTR.US) was down 2%, Coinbase (COIN.US) fell over 2%, Circle (CRCL.US) dropped more than 1%, and Bitmine Immersion Technologies (BMNR.US) declined over 2.9%.