WTF Just Happened Here?

Early in the day, VIX spiked 'oddly' and instanly broke the options market...

 

Prompting the start of an epic ramp in stocks:

 

Which was all good and fine, until the last minute of the US day-session today, when, as a follow up question, we have just this to ask: WTF just happened here?

 

Here is Central Bank XYZ's VIX fat finger, zoomed in.

When Citi warned earlier to "Be Prepared For All Sorts Of Insanity Today", it wasn't kidding.