It has to be said that the SPX doesn't look like a complete correction. It just looks like a single impulse up. However, if we count the move from 1042.17 as [A] up to yesterday's high and [B] down to yesterday's low, today's rally would be the [C] wave and, therefore, a simple impulse would complete wave ii.
Here's the ES chart:
Note: it can be counted as complete, but squiggles being what they are, don't be surprised if there is still another up leg to go.