The VIX Index
This measure of expected S&P 500 volatility was already above its historical average before Sept. 15, when Lehman Brothers declared bankruptcy. Since then, the VIX has remained at or near record highs.
This measure of expected S&P 500 volatility was already above its historical average before Sept. 15, when Lehman Brothers declared bankruptcy. Since then, the VIX has remained at or near record highs.
