If you own shares of Advanced Micro Devices, (NASDAQ:AMD)Rambus (NASDAQ:RMBS), or athenahealth, Inc (NASDAQ:ATHN), prepare yourself for a wild ride this week.

All three of these companies are reporting earnings, and all three are heavily shorted -- with lots of investors betting against their short-term success. When these two variables combine, volatility is almost always the result.

Don't believe me? Just check out to the three stocks I called out two weeks ago: they moved an average of 12 percent following their respective earnings releases.

But instead of trying to time the market, I think it's much better for shareholders to prepare themselves for the volatility and focus on the factors that really matter to their long-term investing theses.

To help you do that, I've highlighted some important variables in the slideshow below that are worth watching for.

Warren Buffett: This new technology is a "real threat"
At the recent Berkshire Hathaway annual meeting, Warren Buffett admitted this emerging technology is threatening his biggest cash-cow. While Buffett shakes in his billionaire-boots, only a few investors are embracing this new market which experts say will be worth over $2 trillion. Find out how you can cash in on this technology before the crowd catches on, by jumping onto one company that could get you the biggest piece of the action. Click here to access a FREE investor alert on the company we're calling the "brains behind" the technology.

Sources: Finviz.com, E*Trade.

Brian Stoffel owns shares of Berkshire Hathaway. The Motley Fool recommends Athenahealth and Berkshire Hathaway. The Motley Fool owns shares of Berkshire Hathaway. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.