BTC climbed above $36,000 for the first time in around 18 months during Asian trading hours on Thursday, and the bullish momentum fed through to U.S. publicly-traded firms with crypto exposure, such as the Coinbase (COIN) exchange, software developer MicroStrategy (MSTR) – which owns a large number of bitcoin, trading platform Robinhood (HOOD) and mining firms Marathon Digital (MARA) and Riot Blockchain (RIOT).