Following a failed challenge of the $70,000 level during early Monday trading hours in Asia, bitcoin {{BTC}} fell below $67,000 in U.S. morning action. Recently, bitcoin's price was lower 2.3% over the past 24 hours, underperforming the broad-market CoinDesk 20 Index's 1% loss during the same period. Bitcoin mining stocks also suffered, but one outlier was TeraWulf (WULF), which recently pivoted to high-performance computing to power artificial intelligence (AI) data centers.