Here is a continuation of the Daily SPX chart from, A kiss is just a kiss:
Note it will take a move back up over 999 to return this chart to Bullish mode.
About my time frames:
They all work, commensurate with trading styles. I use 30 minutes and under for intraday Scalping, 60 minutes and over for Swing trading and Daily/Weekly for Intermediate Trends which usually govern what side of the smaller time frame charts I trade. Thus, there are multiple "Sell Signal Thresholds" that are discussed here. Needless to say, a Daily-based Sell (as per above chart) is significant.