FX.co ★ S&P500 | Time to sell?

We're seeing S&P 500 test a major resistance at which is an overlap resistance and a 50% Fibonacci retracement. Could prices drop all the way down to 4016 which is the pullback support and 38.2% Fibonacci retracement?

In terms of stop loss, we're looking at 4080 which is the 61.8% Fibonacci retracement and a recent swing high resistance.