Well, I can think of a number of reasons, all related to low priced competition. First, their custom hardware (Adrenaline, Nitris, Mojo, DS, and the like), once a significant revenue generator, has largely disappeared (at least in the Media Composer market) in favor of cheap third party solutions. Second, they've been forced to cut the pricing of their basic software license by a huge margin over the last few years, and in a rather saturated marketplace for "high end" tools. Third, although they practically own the audio recording and rerecording market, it's also rather saturated, with a number of large players seeing little need to upgrade their hardware (hence why future versions of Protools will likely require such upgrades, especially on the ProTools HD side). Finally, the broadcast automation market is not growing, as broadcast itself is not growing. In short, I think it's a bit difficult to thrive in a business that is hell bent on getting things for free or as close as possible to that, and is not experiencing large growth, not to mention the difficulties of not being diversified enough to have other products and markets to mitigate the stagnant ones. Avid is not the only company facing those challenges. Just ask any owner of a post production business....
I would also point out that Apple has seen their stock price go down by over 40 points in two days, all because they are still living in the legendary shadow of a man who's been gone for almost 2 years, a legend that no company can possibly live up to. In an age of instant communication, no secrets, pop culture gone mad, and polarized politics, it's really tough to have things evaluated reasonably.
I would also point out that Apple has seen their stock price go down by over 40 points in two days, all because they are still living in the legendary shadow of a man who's been gone for almost 2 years, a legend that no company can possibly live up to. In an age of instant communication, no secrets, pop culture gone mad, and polarized politics, it's really tough to have things evaluated reasonably.