With a day of wild swings yesterday at the FOMC presser, VIX (implied volatility based on 30-day SPX options) fell approximately 15% from its prior close.
In fact, VIX slightly pierced the 21 EMA on the daily chart only to climb back well above the 21 EMA and close at 29.61.
Because VIX has accomplished the pullback that was expected based on the inside day and the Bolllinger Band snap, VIX is now likely to continue the uptrend based on the very momentum that led to the Bollinger Band snap. The pullback in VIX may not be complete, or more sideways action in VIX may be required. But given the momentum that was behind the Bollinger Band snap, the uptrend in VIX will likely continue, leading to higher VIX levels corresponding to lower SPX and NDX levels.