Every week, I take a look at a few companies that lapped their profit targets. When Wall Street's pros are left with quizzical looks, it usually means that the companies have more in the tank than the analysts had figured, and capital appreciation often follows.

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

Lam Research (NASDAQ:LRCX) chipped in with market-thumping fiscal-third-quarter results. The chip-equipment maker earned $1.15 a share, while the market was expecting just $1.06 a share in profitability. Healthy demand for memory chips kept Lam busy. Memory customers accounted for 78% of the company's business during the period.

It's appropriate that the new ticker symbol for Ruby Tuesday (NYSE:RT) is often the abbreviation for "right." The casual-dining chain earned $0.57 a share before stock-based-compensation charges and a lease-related hit for its latest quarter. The showing clocked in comfortably ahead of the $0.50 per share that it had earned a year ago and the $0.53 a share estimate that Wall Street was looking for.

Ruby's strength comes when other chains such as Panera (NASDAQ:PNRA) and P.F. Chang's (NASDAQ:PFCB) have been warning of lackluster store traffic. Ruby Tuesday did concede that it was also experiencing initial weakness in the current quarter, but that doesn't take away from the solid showing it booked for the three months that ended on March 6.

Then we have Pier 1 Imports (NYSE:PIR). The home-furnishings retailer may not be doing so well, but it's all relative. It posted a loss of $0.14 per share from continuing operations, before unusual charges. That is certainly unwelcome news for a retailer over the holiday period, but it could have been worse. Investors were braced for a $0.32-per-share deficit.

So keep watching the companies that beat 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.

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.