Another Bad Day for Apple: Buy, Sell or Hold?

It was another bad day for AAPL with the stock closing down 6.16% from Tuesday when Steve job's medical leave was announced. What to do, if anything? Karen Finerman, president of Metropolitan Capital Advisors, thinks it's a buy (here). Jim Cramer, CNBC Mad Money, thinks that AAPL had just run up too much for a "blowout" quarter to propel the stock any higher (here).
The logic of my systems models suggests that if AAPL is below the dynamic attractor (displayed above) it's a buy opportunity since the stock price should eventually be drawn back to the attractor. Stock prices above the dynamic attractor present an opportunity to take excess profits.

For the month of January 2011 (the finest resolution for my models), an AAPL stock price of 332.68 is very close the attractor value of 331.01 (just a little over, actually). The models suggest that the stock could fall a little further before presenting a buy opportunity. In fact, Apple stock would have a long way to fall to reach improbable lows (290 brackets the lower 98% bootstrap prediction interval).

DISCLAIMER: I'm holding my Apple stock, but that has less to do with the models than with a wait-and-see attitude. Steve Job's medical leave cannot possibly have any effect on company fundamentals for many months into the future. It's a good time to watch what traders do to the stock and compare future time paths with model predictions.