Bitcoin-related stocks drop in premarket trading after Elon Musk appears to tweet a break-up with the world's most popular cryptocurrency.Bitcoin (BTC-USD) falls 5.4% in the past 24 hours to $36.7K.Marathon Digital (MARA) stock slumps 3.1%, MicroStrategy (MSTR) stock -1.1%, Riot Blockchain (RIOT) -1.8%, Coinbase Global (COIN) -1.6%, Silvergate Capital (SI) -1.3%.Tesla (TSLA) stock, though, gains 1.7%.Other cryptocurrencies also decline: Ethereum (ETH-USD) -6.5% to $2,634, Binance Coin (BNB-USD) -9.2% to $383, dogecoin (DOGE-USD) -11% to 36 cents, Cardano (ADA-USD) -8.6% to $1.68.SA contributor Keyanoush Razavidinani lays out indicators he uses to show Bitcoin price trends and momentum