NYSE Signal....so far so good...lower.

NYSE Daily Chart @ Close June 5 2013

The Outside Down Day & Weekly Charts for the NYSE have indeed been prescient in their timing.
The NDX100 was along for the ride (in signalling); the benchmark S&P500 failing to give such clarity.
Further short- term weakness is possible; the immediate Support @ the 38% retrace of gains since Nov. 2012 fast approaching.