Following is the analysis using S&P500 Futures Daily and Hourly charts.

SP500 Futures Trading Strategy here is to stay long above 4300 for target 4380. The current/closing price was 4320. The momentum is recovering while price is still falling; so price should also recover in the next 2-3 days. Stop loss of 4300 will protect against any major downside. There is a strong resistance zone between 4380 and 4400, so after existing at 4380, any new long trades should be considered only above 4400, or above 4410 to be safer.

S&P500 Futures Hourly Chart show support coming between 4300-4320. This may get tested again tomorrow, before any clear upmove.