Hello and welcome to this analysis
S&P appears to be still on its corrective path, the bounce had came from a heavily oversold zone.
Now going forward this fall if it protects 3500 then it could be a exp flat b of iv and spend some more time sideways (triangle) or retest the swing high with c of iv. Breach of 3500 would suggest 5th to take it down to 3350 approx.
Buckle up for more volatility