凌晨！全线大涨，发生了什么？

Core Viewpoint - The Federal Reserve's indications have alleviated panic in the U.S. stock market, leading to significant gains in major indices and tech stocks [1][2][3]. Market Performance - On April 11, U.S. stock indices opened lower but closed higher, with the Dow Jones rising by 1.56%, the S&P 500 by 1.81%, and the Nasdaq by 2.06% [4]. - Major tech stocks saw substantial gains, with Broadcom up 5.59%, Apple up 4.06%, and Nvidia up 3.12% [6]. - The Nasdaq Golden Dragon China Index increased by 1.73%, despite a weekly decline of 5.3% [6]. Volatility and Market Sentiment - The S&P 500 volatility index (VIX) reached its highest level since August of the previous year, exceeding 60 during a turbulent week [7]. - The S&P 500 recorded a weekly increase of 5.7%, marking its best weekly performance since November 2023, with the Nasdaq gaining 7.29% [8]. Federal Reserve's Position - Boston Fed President Susan Collins stated that the Fed is prepared to use its policy tools to stabilize the market if necessary, emphasizing that the current market is functioning well [11][13]. - Collins noted that emergency rate cuts are not the primary tool for addressing market issues, and the Fed has other mechanisms in place to support market operations [16]. Economic Warnings - New York Fed President John Williams warned that tariffs introduced by President Trump could lead to inflation rising to 4% and a potential increase in unemployment [19][21]. - Williams highlighted a significant decline in consumer and business confidence, with inflation expectations rising to 6.7%, the highest since 1981 [22].