Shortly after 3pmET, the S&P 500 was starting to test the day's lows with a heavy volume down-spike around 1508ET. That, as we know, will never do to maintain the illusion of vigor and excitement over the new Utopia we are living through and so, as if by magic, VIX was slammed a rather surprising 0.25 vols out of nowhere, dragging S&P back to VWAP and beyond... But the magic didn't work, the S&P 500 cash index closed infinitesimally red on the day despite this WTF chart...
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Charts: Bloomberg