The Hidden Pivot support at 1025.75 given here yesterday worked well, since it caught the low of a 25-point decline within 1.25 points. Now that it has been exceeded, albeit only slightly so far, we should use a Fibonacci-based support at 1020.50 as a minimum downside target. Alternatively, an upside thrust that surpasses 1035.75 would hint of a bullish turn to end the week (and quarter).