It could of easily gone higher as part of a larger corrective move...
The big tip off for me that were still in the current wave (3) degree set.. Was it failed to clear its last corrective wave off +32.25 as shown on this mornings chart of the SPX.
Remember folks, there was a whole lot of selling going on today in the last 2 hours or so by people that did not want to be around for tomorrow's illiquid shortened session.