Banks were the sector led the 2007/2007 amd early 2009 down side moves, and now Banks are leading again. $BKX touched/broke 200ema. and I expect SPX will follow before this correction complete.
The next id the current SPX daily chartMonday I think the low would be around 1030
and high around 1045/1047. Another possibility is SPX break down below 1025 and then it opens the chance for 1000.