Jason Schwarz is the author of The Apple Revolution, an e-book.

NEW YORK (TheStreet) -- A common sense interpretation of Apple (AAPL) - Get Report fundamentals leads most investors to conclude that this stock should go straight up. Mac sales were up 74% in October and November, the iPhone is on track to have its first quarter of unit sales of 10 million, the iPod Touch continues to gain market share among gamers, the Tablet will be released in 2010. But for some reason, the stock sits dormant in December; if only investing were so easy.

Common sense wins in the long run, but the short run can be dominated by sophisticated trading strategies that test your conviction. Apple happens to be the investment vehicle of choice, not only for the longs but the shorts as well. For many of the same reasons you love Apple stock, the shorts do, too.

Here are seven reasons why investors love to short Apple.

1. Apple is the market leader.

I don't mean Apple is the leader of the PC market or the smartphone market; I'm talking about the stock market. The

Dow Jones Industrial Average

would have hit 11,000 by now if Apple were having a strong December.

This one stock has become so important to the market that its action is contagious. This influence makes Apple a prized possession for both the longs and the shorts. Knocking down an easier target like

Research In Motion




(C) - Get Report

doesn't generate the same snowball effect. This begs the question: Why would anybody want to keep a strong stock and a strong market down? That leads to No. 2.

2. Apple always bounces back.

If you can keep a good stock down, then you are able to load up for the ride back up. It's like a slingshot -- the harder you pull, the more propulsion you generate.

Over the long run, Apple fundamentals will certainly take the stock higher, but hedge funds want to maximize the ride. Keeping a great stock down allows them to profit from quick predetermined trades rather than being fully invested all the time.

If they can control the price action on the downside, they can take even bigger risks during the inevitable periods of upside momentum. After riding the Apple slingshot, the hedge funds go back and do it again and again.

3. The predictability of Apple reduces a short's risk.

Everyone knows when the next iPod, iPhone,and iMac refreshes will hit. This has turned into a calendar-driven catalyst stock. During the quiet time, the stock is vulnerable.

4. New media have changed the game.

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Anybody can say anything and the masses will believe it. The topic of Apple currently dominates this new media. There is no accountability or verification of sources like the old days. In such an environment, hidden agendas can be pushed endlessly without disclosure.

On any given day, you will find 20 different articles written about Apple with 99% of the content being speculative in nature. The stock responds to this outside speculation in the absence of official clarification from the company.

5. Apple secrecy.

As the unparalleled leader in tech innovation, Apple feels that it is necessary to keep future products veiled to all competitors, consumers and investors. I'm not here to criticize Apple for this practice because it certainly has its merits, but it does open the stock up to volatility. Apple has yet to sell a single Tablet, yet hedge funds already have made millions from rumors surrounding the product. The lack of transparency from Apple creates a perfect storm for short-term traders.

6. Apple innovation.

This company is so good that it causes imaginations to run wild. A hedge fund could float a story that Apple is thinking of buying


in order to develop a new brand of Apple cars and people would go nuts. The name Saturn would instantly become a symbol of quality and innovation. If a similar rumor were floated about


(IBM) - Get Report

, investors wouldn't be as quick to jump.

The constant innovation coming out of Apple provides traders with endless material for believable speculation.

7. Steve Jobs is the visionary of the century.

This one man is the single greatest asset in corporate America, which causes Apple stock to trade with a Steve Jobs premium, a variable that the shorts can use as well. Apple's stock is always vulnerable to losing Jobs.

If Steve Ballmer were to leave


(MSFT) - Get Report

, nobody would care; that doesn't help the shorts. Jobs is different. A hedge fund could float a factual article that gives statistics on liver transplant patients, and it might move the stock.

These seven reasons make Apple an ideal short play for sophisticated traders who want to make money coming and going. The chaos of it all can cause individual investors to become frustrated with the volatility.

Apple shares closed up $3.57, or 1.9%, to $195.43 on Friday.

Written by Jason Schwarz in Westlake Village, Calif.

At the time of publication, Schwarz was long Apple.

Jason Schwarz is an option strategist for Lone Peak Asset Management in Westlake Village, Calif. He is also the founder of the popular investment newsletter available at www.economictiming.com. Over the past few years, Schwarz has gained acclaim for his market calls on the price of oil, Bank of America, Apple, E*Trade, and his precision investing in S&P 500 option LEAPS. His book, The Alpha Hunter, is set to be released by McGraw Hill in December 2009.