The Volatility Index ($VIX) made its highest weekly close since December of 2013. It spiked above and held the 20 level. This level has been widely watched and for good reason.
Here is a 20 year chart of the VIX overlaid with a regression line. A regression line is the best-fit straight line of closes over the period, in this case, weekly closes. The 20 level has been the best-fit straight line level over the last 20 years.
