ES1!6329.75 reversed lower from the 6380 area yesterday and tested 6310 during the overnight session, from where the index bounced all the way to 6358 in the premarket. There is notable resistance around 6360–6365. If we are to see new lows below last Friday's low as projected, ES should not exceed 6380 by much.

ES support levels: 6328-6330, 6304-6305,
ES resistance levels: 6349-6352, 6360-6365, 6378-6382

I am expecting a continuation of the downside, but there may be a rally attempt early in the session. If so, it will likely fail at a lower high (below yesterday's high).