Over the past year or so I've been tracking all of us analyst performance in forecasting Apple's financial metrics, and ranking us based on the 6 or 7 categories of estimates compiled by Fortune's Apple 2.0 blogger Philip Elmer-DeWitt, and the outcome has always been a consistent underperformance by pros (see here, here, here and here). The comparison and friendly "competition" has almost become laughable, if it weren't for the serious amount of capital that these "professional" analysts look over, and thus the effect of their cluelessness on Apple's share price gets felt.
However, all this time I've been applying a somewhat forgiving methodology on my rankings. By averaging out all the categories with equal weights, the resulting score improperly reflects the relative importance and sensitivity on the stock price of these variables. It should be clear to all investors that forecasting earnings and revenue is most critical, while the number of iPods sold has very little effect (for quite a few years now) on Apple's financial performance. Yet by applying the same weight to these, the effect of the most important metrics gets watered-down by the less important ones so the analyst scores and thus the rankings do not reflect what investors should be focusing on out of all the stuff analysts throw out there.

