Today's 3 Worst Stocks

Losing ground for the first time in five weeks, the S&P 500 Index lost less than 1 point, or less than 0.1%, to close at 1,649 as stocks head into the long weekend. Though posting slight losses, U.S. equities fared far better than most international markets, many of which fell following weak industrial data from China earlier this week. Doing their best impression of weak foreign stocks, these three companies ended as the worst in the S&P Friday.

Five-day periods just don't get much bleaker than the one GameStop experienced this week. Today's 10.8% decline brought weekly losses to 19.2%, as Microsoft's Xbox One release was the initial downward catalyst for the stock and the new console will likely make the majority of the used-game industry out of business. Today's slip comes after GameStop announced quarterly results. Sales and income both fell, foreshadowing what could be a depressing future for shareholders.

The second-largest laggard of the day, , lost 5.3% after a weak quarter of its own. The quarter wasn't so much weak as expensive: Increasing costs brought margins down. The company lost nearly $70 million in the first quarter, even though core revenue ticked upwards. But with operating expenses rising nearly 30% and interest expense surging 87%, it's tough to post an impressive quarter.

Lastly, shares of materials company Allegheny Technologies slipped 3.1% for a third straight day of losses. The week's earlier data from China initiated the slump, as investors fear sluggish industrial production in the Far East will either spread to the West or limit demand in high-growth markets abroad. Credit Suisse also lowered its price target for the stock today, citing an increase in nickel supply.

With the U.S. relying on the rest of the world for such a large percentage of our goods, many investors are ready for the end of the "made in China" era. Well, it may be here. Read all about the biggest industry disrupters since the personal computer in 3 Stocks to Own for the New Industrial Revolution. Just click here to learn more.

The article Today's 3 Worst Stocks originally appeared on

Fool contributor John Divine has no position in any stocks mentioned. You can follow him on Twitter @divinebizkid and on Motley Fool CAPS @TMFDivine.The Motley Fool recommends and owns shares of GameStop and Microsoft. 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.

Copyright © 1995 - 2013 The Motley Fool, LLC. All rights reserved. The Motley Fool has a disclosure policy.