The rally is looking a bit toppy but its not dead yet.
Watch the changing slopes of the support and resistance channels. If they keep rolling over and the SP breaks that key support at 740 it could be a real sleigh ride lower back down to 700.
The VIX was elevated all day, even at the high, so there is your 'tell' in addition to the shift in the trend channel to a softer slope.
Chances are they dump the market overnight if that is what is going to happen. But until there is a break through 740 this is just a pullback. We'll have to consult with other short term indicators to see if this is a top, or just a bear trap pullback.
“A nation can survive its fools, and even the ambitious. But it cannot survive treason from within. For the traitor appears not a traitor; he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men. He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist. A murderer is less to fear. The traitor is the plague.” Marcus Tullius Cicero