纳指跌超1.6%，恐慌指数VIX飙升20%

Core Viewpoint - The U.S. stock market experienced significant declines, with major indices falling sharply, indicating increased market volatility and investor concern [1] Group 1: Market Performance - On February 5, the three major U.S. stock indices saw their losses widen, with the Nasdaq Composite dropping over 1.6% [1] - The VIX, known as the fear index, surged by 20%, reaching a new high not seen since December of the previous year [1]