I argue below for monitoring AAPL’s price swings obsessively, since the stock will give us an infallible ‘read’ on the stock market as a whole. On Wednesday, for instance, when AAPL began its bounce precisely from a 185.87 downside target I’d billboarded two nights earlier, the broad averages whipped around 180 degrees and took off like a shot. It was exactly 2:07 p.m. ET, and the Dow was banging out its intraday low at 24935, down 350 points.  The subsequent 328-point upthrust hit 25263, at which point the Dow was within 25 points of unchanged. The blue chip average relapsed in the final hour, presumably because its guiding light, AAPL, was unable to sustain altitude. I’ve provided benchmarks for AAPL for Thursday that will allow you to see for yourself how the stock’s targeted highs and lows can be used to precisely time price swings in the broad averages. For the foreseeable future, AAPL will be leading them by the nose.