Yesterday opened outside of the prior day's range and continued it's negative pressure during the morning before a sharp turnaround at midday saw aggressive short covering, a gap fill and change of intra-day trend to bullish for the remainder of the session.
Overnight the range is 2643.25-58.50, with the initial bullish move after hours with AAPL losing steam. You can see from the daily chart above that the current VPOC since the all time high to now stands at 2657.50, and we have an FOMC announcement later. I've marked zones of interest for today on the RTH profiles below:
Yesterday opened outside of the prior day's range