Please see this image for S&P500 futures daily chart analysis.
S&P500 Futures have been facing major resistance at 4700 level and have not been able to stay above 4720 for much time, and have been facing major selling pressure above 4700-4720 level, which is now the main Resistance Level. Because this level has become such a big resistance for a long time, whenever it breaks, there will be at least 100-150 point upside rally till 4850 level. A closing above 4720 can be considered a decisive breakout, with target 4830. That upmove can be rapid.
On the lower side, 4500 level is a strong support, and it will present a good buying opportunity. For now, we have to remain cautious again, and see if 4600 support level holds. There is no clean or safe trade in the current market, and we will do a fresh analysis tomorrow. Thanks.