Earnings season is upon us once again, and that means that we're primed for more volatility -- at least when it comes to shares of Cal-Maine Foods (NASDAQ:CALM)Athenahealth (NASDAQ:ATHN), and Angie's List (NASDAQ:ANGI). That's because all three of these companies are not only reporting earnings, but are heavily shorted, or have lots of investors betting against their short-term prospects.

When these two forces collide, volatility is almost always the result. If you don't believe me, check out the three stocks I highlighted earlier this month, which moved an average of 5% following their respective earnings releases.

But let's be clear: I don't think you should use this information to time the market. There's absolutely no way to know if these big moves will be up or down. Instead, I suggest that current or perspective shareholders of these three companies check out the slideshow below to know what's really worth paying attention to and what's just noise.

Brian Stoffel owns shares of Amazon.com. The Motley Fool recommends Amazon.com and Athenahealth. The Motley Fool owns shares of Amazon.com. 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.