Apple investors remain jittery

While Apple might be doing well, I can't help but notice how jittery Apple investors seem to be.  Any bad news relating to Apple seems to cause dramatic drops in stock prices.

We've had several examples of Apple's stock price taking a hit over the past few months.  An unconfirmed rumor spread by Engadget that the iPhone and Leopard were being delayed caused a plunge in price, as did the news of the lower than expected activation of iPhones during the first weekend and now a rumor that surfaced on TheStreet.com that Apple is having iPod and iPhone production problems.  While each time the stock price has recovered (and recovered pretty fast), the sudden negative effect this news has on investors must be worrying for Apple executives because it's a sure sign that any serious problem that Apple may suffer in the future will be severely punished and a recovery could take some time. 

Thoughts?