Riot Platforms (NASDAQ:RIOT) recently said that it has a more than 9% stake in rival Bitcoin (BTC-USD) miner Bitfarms (NASDAQ:BITF) and wants to buy the firm. The miner has made a 950millionoffertobuyBitfarmsafteraprivateapproachwasrejected.RIOTstockisfallingslightlyonthenewswhileBITFstockisontherise.SharesofRiotPlatformsopenedtodayat10.24 per share and a market capitalization of about 3billion.Meanwhile,BITFopenedat2.23 per share and a market cap roughly $845 mil ...