The "signals are conflicting" is consistent with this stage of the market DECLINE. The Bulls and Bears are battling to establish the TREND. Once the SPX breaks and "closes" BELOW the 200-day MA, you see a dramatic change in the sentiment both in the TA and in the public retoric (CNBC).
If the TREND is STILL "UP", my STOP LOSS at 1500 will be hit. On the other hand when the NDX "closes" BELOW 1427, we will have "confirmation" that next leg of the DECLINE is underway; which is Wave (iii) of 3 of C...the "Regognition Wave".