S&P500 puts in the "outside down day".....

S&P500 Daily Close @ 10/18/2012

Apple & the NDX100 may have given us the sign that we were looking for (THE WEEKLY 10/12/2012); now the S&P500 confirms it with a 'bearish engulfing' day.
Now or never for the correction to kick into high- gear and find out where the supports are?
Nasdaq McClellan Oscillator < Zero & the Summation Index 'closing' in fast @ the Zero Line (heading 'due South'); INTC, MSFT, IBM & GOOGLE now leading with Apple.