ST bullish, volatile flatness will continue until SPX breaks out of 2580 - 2680 range
SPX 2645/50 is strong support - break below this on daily close will be severely bearish
SPX 2680.85 strong resistance, break above leads to 2720, possibly higher
Markets could be bullishly or bearishly sideways for some time.
My probable scenario - attempt to go higher and then reverse