If that gap fills now...this trade is toast. We'd likely go down to visit the December lows and fill the gaps on 12/27/16 & 12/29/16 that nobody seemed to mind on the run up so far this year. The setup is for a breakout...and if that doesn't happen, then breakdown is the only other option and I assure you 21.52 would not be the low. The trading yesterday and thus far today is defying any and all logic and/or technicals.
I will hold judgment until after I see how things react to the magical Fed minutes.