Argo Blockchain, a crypto miner whose shares trade on the London Stock Exchange (ARB) and Nasdaq (ARBK), said it requested a 24-hour suspension of U.S. trading. U.K. markets are closed Tuesday. On Dec. 12, the company said it was close to restructuring without having to declare bankruptcy. At that time, it said it was in advanced negotiations to sell some of its assets and carry out an equipment financing transaction to strengthen its balance sheet and improve its liquidity. More info: https://bit.ly/3PWkHLV