# 20 largest VIX spikes

with Volatility S&P 500 index ( VIX ) spiking by 43.2% at close as on 15 Apr 2013 , which is the fifth largest one day jump, we looked how VIX index and the S&P 500 index fares the next day during the previous 20 largest one day jumps.

Below the table with 20 previous largest one day VIX spikes and the next day returns. As can be seen in the table below, VIX has fallen 75% (15/20) of the times next day , with the average fall standing at -6.06% , while the median fall stands at -8.86%. Also worth noting in those 20 largest falls , twice the volatility index followed with another 20% spike on 6th May 2010, and on 3rd Aug 1990.

## 20 Largest VIX spikes and subsequent VIX returns

## 20 Largest VIX spikes and subsequent S&P 500 Index returns

Below the table with the next day S&P 500 Index returns. As can be seen in the table below, S&P 500 Index has risen 70% ( 14/20) of the times the next day, with the average gain standing at 9.2 points or 0.8%. The median next day change is 5.31 points or 0.63%. Do note that in those 20 largest VIX falls , twice S&P 500 index followed with another 1.5% ++ losses as on 6th May 2010, and on 3rd Aug 1990.

h/t @ Ryan Detric and from the post here at stock twits : Today was the largest $VIX move ever (+43%) on an $SPY drop b/t -2.5% and -2.0%. Whoa; http://stks.co/jRYe