MicroStrategy (MSTR) shares fell 5.94% at the opening of U.S. markets on May 18, leading a decline in cryptocurrency-related stocks. Other notable declines included Coinbase (COIN) down 3.00%, Circle (CRCL) dropping 2.55%, SilverBet (SBET) falling 3.57%, and BitMiner (BMNR) decreasing 4.03%. Meanwhile, broader market indices showed modest gains, with the Dow Jones Industrial Average up 0.04%, the S&P 500 rising 0.15%, and the Nasdaq Composite increasing 0.14%.