Every week, I take a look at a few companies that lapped their profit targets. Leaving Wall Street's pros with quizzical looks can be a good thing. It usually means that the companies have more in the tank than analysts figured, and capital appreciation often follows.

Let's look at a few companies that humbled the prognosticators this past week.

We can start with iMergent (NYSE:IIG). The company behind the StoresOnline Pro e-commerce enabling program earned $0.41 a share in its latest quarter. That was well ahead of both the $0.17 per share it earned a year ago and the $0.34 that the pros were expecting.

The company is projecting slower growth in fiscal 2008. It's also being tested -- and even banned in some states -- for its hard-sell seminar tactics. However, the public still loves the prospect of making a mint online, and iMergent is there to dangle the keys.

J. Crew (NYSE:JCG) is another topper. The retailer knows all about tops -- and bottoms, too -- as one of the trendy apparel chains that's in demand these days. The company earned $0.32 a share in its fiscal second quarter, comfortably above the $0.29-per-share market consensus. The chain, headed by former Gap (NYSE:GPS) rock star Mickey Drexler, has consistently beaten Wall Street since it went public last summer.  

Finally, we have Casey's General Stores (NASDAQ:CASY), turning a profit of $0.59 a share in its latest quarter. The discount retailer's bottom-line showing was a refreshing upgrade compared with the $0.45 per share that analysts were ready to settle for. Times may be tight, but thrifty-shopper magnets such as Casey's and Duckwall's (NASDAQ:DUCK) ALCO stores are doing just fine.

So keep watching the companies that lap expectations. Over time, it will be a rewarding experience for investors as the market rewards the overachievers. That's the kind of surprise we look for in the Rule Breakers newsletter service. Want in? Check out a 30-day trial subscription.

Either way, come back next Monday to learn about more stocks that blew the market away.

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Longtime Fool contributor Rick Munarriz is a fan of toppers. He does not own shares in any of the companies in this story. He is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early. The Fool has a disclosure policy.