On the daily charts, SPX closed above the 50ma even after a last hour swoon as BULLS overcame an early low to rally hard as the session progressed but could not maintain it to the close. That's a weak close that extended overnight to more losses in the S&P Futures contract.
This is an hourly SPX chart with Heikin Ashi candles that provides a more trendy outlook and it shows the that last hour dive that changed the complexion of the day's trading with a close below the 20, 50, and 200 ma. That ugly cyan painted zone - I am not the artistic type - is strong resistance and a close above it will be very bullish. SPX 2700 remains strong support.
Note the daily SPX 200ma has move up to 2665. creeping up, not too far away! (this is not shown in this hourly chart)