智通财经网·2025-11-21 03:04Group 1 - The core viewpoint is that despite Nvidia's impressive earnings, the US stock market experienced a significant reversal, indicating that traders did not receive the risk "full relief" signal they anticipated, leading them to seek hedges against further losses [1] - The S&P 500 index initially surged by 1.9% but later fell by 1.1%, marking the largest intraday volatility since April, with over $2 trillion in market value evaporating from its peak [1] - The VIX index rose above 26, reflecting increased market fear and uncertainty [1] Group 2 - Goldman Sachs' trading department noted an increase in short positions across macro products, including ETFs and futures, indicating a shift in market sentiment [1] - The report highlighted poor market liquidity, with the depth of S&P 500 orders dropping below $5 million, compared to an average of $11.5 million over the past year, which may amplify market volatility [1] - Historical data shows that since 1957, there have been eight instances of the S&P 500 opening up over 1% and then reversing to close down, with an average positive performance following such events [2]