Epic 34% spike in the VIX Monday.
The 1oth largest daily percent increase since 1990 and biggest since August 2011, which, at the time was in the midst of a nasty correction/mini bear market. The S&P500 is only off just under 3 percent from its recent highs made last week.
The following table show the post S&P500 returns after large VIX spikes.
(click here if table is not observable)