Those arrows and ribbon is nothing but impulse system ( its same as my prev charts of impulse bars, only thing is its space saver and easy to visualize )
There was some long build up witnessed in December series in last half an hour along with put writing ( see o.i. put call ratio which is rising )
Well those things hardly pass as reversal signals, only thing is shorts covering their positions and bears not willing to open fresh shorts as risk reward ratio is not in favor.( in technical term there is a word call it 'oversold' ! )