Apple's stock is down almost 15 points today in the wake of news that CEO Steve Jobs is taking another medical leave. Quite frankly, I can't believe more people don't sell short Apple (and Google as well for that matter).

In order to maintain the virtual monopoly they currently have in the tech industry requires constant innovation. Without Jobs, people doubt if Apple can maintain its hold on the industry. His uncertain future can have huge ramifications across the sector.

But again, I really don't understand why Apple and Google are two of the most commonly held securities considering the always changing landscape of technological culture and applications. No way these companies can maintain their control with all of the burgeoning companies not only domestically but throughout the world (Russia, China, India) not to mention the emerging markets who will present another market share up for grabs.

At over $600 a share, Google is the most overvalued piece of junk in the market IMO>