美股的波动，不可持续。波动率指数(VIX)在今天的交易中大幅上涨164%。目前其交易价格处于2020年3月新冠疫情暴跌以来的最高水平。除COVID之外，VIX交易价格第二次如此高企的，是2007-2009年的金融危机。The VIX is up a MASSIVE 164% in today's session. It is trading at the highest level since March 2020, the COVID CRASH.The only 2nd time aside from COVID when the VIX traded as high was the GREAT FINANCIAL CRISIS OF 2007-2009.