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.


July 13 Weekly Loss My Watchlist
Bridgepoint Education (NYSE: BPI) $9.77 (55%) Add
SUPERVALU (NYSE: SVU) $2.32 (54%) Add
James River Coal (Nasdaq: JRCC) $2.00 (44%) Add
MAKO Surgical (Nasdaq: MAKO) $14.61 (39%) Add
Green Mountain Coffee (Nasdaq: GMCR) $19.70 (20%) Add

Source: Barron's.

Bridgepoint Education flunked out after failing to receive accreditation from one governing body. Things went from bad to worse after another regional accrediting body also voiced concerns about the online educator.

SUPERVALU also shed more than half of its "valu" after the deficit-rattled grocery store chain suspended its dividend. The company is in a precarious capital preservation mode, and it's exploring strategic alternatives if it doesn't go under first.

James River Coal was blasted after Patriot Coal filed for bankruptcy. Sometimes a faltering rival is an opportunity, but in this case we're looking at falling coal prices as the culprit -- and that makes every player vulnerable. BB&T Capital Markets analyst Mark Levin told Reuters that James River Coal is often mentioned as "another potential victim" when it comes to filing for bankruptcy.

MAKO tumbled on Tuesday after the orthopedic robotics speedster reported disappointing sales of its RIO system. Medical professionals who have already bought the system continue to use the high-tech device, but winning over new buyers has been the rub.

Green Mountain Coffee Roasters was poured out by investors after an analyst revised his profit targets to show a decline in profitability for both fiscal 2013 and fiscal 2014.

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.