Crypto shares fall as bitcoin slide on waning optimism on Trump's crypto reserve plan

** Shares of cryptocurrency and blockchain-related companies down premarket, hurt by weakness in bitcoin** Bitcoin , world's biggest cryptocurrency, falls ~3%, while Ether drops ~2.3%** Optimism on digital currency after Trump's proposal for a national strategic reserve of cryptocurrencies continues to wane down as market participants awaits more details about the crypto initiative** Crypto exchange Coinbase Global down ~5.6%, U.S.-listed shares of blockchain farm operator Bitfarms Ltd down ~2.8%** Crypto miners Riot Platforms Inc , Hut 8 Mining and Marathon Digital down between ~3.5% and ~8.4%