On April 15, according to 4E monitoring, the U.S. government suspended taxes on electronic products, which boosted market sentiment. However, Trump also said that there was no tariff "exemption" and that related products were only transferred to another tariff category. This capricious policy signal causes market sentiment to fluctuate. The U.S. stock market opened higher and lower on Monday. All three major indices fell during the session, but eventually closed up collectively. At the close, the Dow was up 0.78%, the S & P 500 was up 0.79%, and the Nasdaq was up 0.64%. The top seven technology stocks index closed up 0.18%. The crypto market as a whole followed a moderate rise in U.S. stocks. Bitcoin generally fluctuated at US$85,000. Strategy announced that it had purchased 3459 bitcoins (average price of US$82618) for US$286 million last week, which boosted market sentiment to a certain extent. At deadline, Bitcoin was quoted at US$85031, up 1.12% in 24 hours. The performance of altcoins is divided, with ups and downs mixed, and the market shows structural fluctuations. Investors seek a balance between optimism and caution. The swing of Trump's tariff policy has kept markets vigilant. Trump "stopped" for a day on Monday. For the current market, it is good news that Trump has no new news. Investors are concerned that without clear flexibility and negotiation progress, the market may face further volatility in the short term. Investors expect the White House to present a clearer stance on tariffs in the coming weeks to reduce uncertainty in global supply chains and the economy.