On April 7, according to 4E monitoring, the tariff storm swept the world, market panic was widespread, and the selling of risky assets intensified. After falling nearly 10% last week, U.S. stock futures fell sharply at the beginning on Monday. The S & P 500 and Nasdaq futures fell more than 5%. As of press time, their declines narrowed, reporting a decline of 2.39% and 3.17% respectively, and Dow futures fell 2.42%. Asia-Pacific stock markets also suffered heavy losses at the opening. The Nikkei index plunged 8.1%, South Korea's KOSPI index fell 5.14%, the three major A-share stock indexes all fell more than 4%, and Hong Kong's Hang Seng Index fell 9.28% at the opening. The performance of the crypto market across the board is highly synchronized with that of U.S. stocks. Bitcoin moved in a narrow range around 83,000 over the weekend. It began to fall below key support in the early hours of Monday, hitting a low of US$77100, setting a nearly one-month low. Other mainstream currencies also fell sharply. Ethereum fell 13.5% to US$1580. The total global crypto market value shrank from US$2.4 trillion to US$2.16 trillion, a drop of 10%. The amount of open positions across the network in the past 24 hours was US$886 million. The market is in a state of extreme panic.