5 of Last Week's Biggest Losers

There's never a shortage of stocks going the wrong way in any given chunk of time. No stock goes straight up, and sometimes fundamentals can get a bit wobbly. Let's take a closer look at five of this past week's biggest sinkers.

Source: Barron's.

Let's start with Lumber Liquidators. The discount retailer of hardwood flooring pre-announced that sales climbed by only 2% in its latest quarter, weighed down by a 7.1% plunge in comparable-store sales. That's not good when analysts were holding out for a 16% pop in sales. The 344-store chain is now seeing a decline in profitability for the period. Analysts were holding out for a healthy increase. The news took down the shares of other home-improvement specialists. 

GT Advanced Technologies kicked off the week on a bad note when two analysts -- UBS and Canaccord Genuity -- downgraded the stock. The stock's been buzzing on reports that the maker of sapphire materials for LED screens will pay a major part in the iPhone 6 and iWatch rollouts later this year, but now at least two Wall Street pros are taking a cautionary stance.

GW Pharmaceuticals is coming off of its highs, and now the bears are getting the munchies. The biotech with a marijuana-based investigational drug making headway as a treatment for a rare type of childhood epilepsy has been one of the market's biggest momentum stocks since two states legalized pot. However, with the market selling off some of the recent rally's biggest winners this past week, it isn't a surprise to see GW Pharmaceuticals -- a 10-bagger over the past year -- take a step back. 

"Don't be afraid to take a profit and accept the risk that it might go back down," CNBC's Jim Cramer wrote on Friday. He did recommend the stock earlier when it was trading lower, and while his buy thesis remains unchanged, he did warn investors to not have more than 10% of their portfolio in speculative situations, including this one.

CHC Group was one of the handful of companies reporting earnings this past week, but the energy helicopter services provider couldn't get airborne. Its mixed results -- weaker-than-expected 3% top-line growth, but a narrower loss than was anticipated -- weren't bad, but its soft guidance left investors bolting from the stock as if they were wearing propellers.

Finally we have The Container Store slipping after hosing down its near-term outlook. The home storage and organization retailer warned that comps in its latest quarter slipped 0.8%. 

"Consistent with so many of our fellow retailers, we are experiencing a retail 'funk'," its CEO noted in the release that ultimately lowered his chain's top- and bottom-line prospects for the entire fiscal year.