There have been two main schools of thought on the bull side over the last few weeks, and the first expected that this retracement would be shortish, and would be followed by a wave 5 move to take equities to new highs and an interim top before a much bigger summer retracement. The second have been expecting a much bigger retracement now, probably taking us through May and slightly beyond, before a big renewed push up in the summer. We are most likely at the point of decision between those two scenarios now. A break up should deliver the first scenario and a break down may well deliver the second. I should stress that I've not entirely discounted alternative bear scenarios, but unless we see a clear topping pattern followed through to below the 1292 SPX October high, it's not worth spending much time on these IMO.
As I suggested was likely yesterday morning, SPX pushed up to test the highlighted strong resistance area and the last bounce high, and has reversed there so far. A break over 1396 will trigger a double bottom (and arguably IHS) target over the last high and the obvious next target not far above there is the 1442 pivot level. Short term there is significant negative divergence on the 15min RSI and that is a strong signal for reversal UNLESS we have started a new impulse wave up. If we see weakness today I'm seeing strong support in the 1377 area, and a move below there would weaken the bullish scenario here:



