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There's never a shortage of losers in the stock market.

Let's take a closer look at five of this past week's biggest sinkers.


Sept. 7 Closing Price

Weekly Loss

My Watchlist

Audience (Nasdaq: ADNC) $6.90 (62%) Add
LeapFrog (NYSE: LF) $9.15 (16%) Add
AuRico Gold (NYSE: AUG) $5.97 (14%) Add
Pandora (NYSE: P) $10.47 (13%) Add
Sigma Designs (Nasdaq: SIGM) $6.09 (11%) Add

Source: Barron's.

Audience was the market's biggest loser, shedding nearly two-thirds of its value after revealing that the audio-signal processor specialist's technology may not be available in the upcoming iPhone 5. The drop may seem severe, but it's more a reaction to Audience's ability to license its technology in the future than the licensing revenue that it will have to live without.

Kindle Fires weren't the only tablets getting cheaper this week. LeapFrog lowered the price of its LeapPad1 by $20 to $79.99. The learning toy was one of last holiday season's biggest winners, but investors don't usually warm up to margin-stinging price cuts.

AuRico Gold wasn't all that golden last week. The gold producer hosed down the production estimates at its flagship Ocampo mine.

Pandora slipped after a report revealed that iTunes was working on a rival service that would be made available for iOS, Mac, and Windows devices. It may be a bit of an overreaction given the fact that many other companies have rolled out similar custom streaming platforms, but iTunes remains the top dog in digital music.

Finally, Sigma Designs may have posted a narrower quarterly loss than the market was expecting, but BWS Financial still downgraded the chip maker after the report.

Ready for a bounce
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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.