On March 19, according to 4E monitoring, the three major US stock indexes ended two consecutive gains on Tuesday, with the Nasdaq falling 1.71%, the S & P 500 falling 1.06%, and the Dow falling 0.62%. Technology stocks led the decline, Tesla fell 5.34% due to increased competition, and Nvidia's GTC conference new products failed to boost the stock price fell 3.35%. Crypto market volatility downwards, dragged down by the low opening of US stocks, Bitcoin quickly fell to around $81,000 last night, and the US stock market rebounded after the close, with a deadline of $82,571, down nearly 1% in 24 hours. Ethereum may be boosted by the news of Pectra upgrade, rising 1.3% to $1,940. Most other mainstream tokens fell slightly. Markets focused on the Federal Reserve's monetary policy decision tonight. Although it is a consensus that interest rates are expected to remain unchanged, investors are still looking for "dot plots" and Powell's remarks at the press conference for policymakers' assessments of the potential impact of the tariff war and clues to when the Federal Reserve will cut interest rates again.