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.

Company

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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The Motley Fool owns shares of Bridgepoint Education, MAKO Surgical, Green Mountain Coffee Roasters, and SUPERVALU. Motley Fool newsletter services have recommended buying shares of MAKO Surgical and Green Mountain Coffee Roasters. Motley Fool newsletter services have recommended writing puts on Bridgepoint Education, buying calls on SUPERVALU, and creating a lurking gator position in Green Mountain Coffee Roasters. The Motley Fool has a disclosure policy. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. Try any of our Foolish newsletter services free for 30 days.

Longtime Fool contributor Rick Munarriz calls them as he sees them. He does not own shares in any of the stocks in this story, except for Green Mountain. Rick is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early.