Dear Valued Visitor,

We have noticed that you are using an ad blocker software.

Although advertisements on the web pages may degrade your experience, our business certainly depends on them and we can only keep providing you high-quality research based articles as long as we can display ads on our pages.

To view this article, you can disable your ad blocker and refresh this page or simply login.

We only allow registered users to use ad blockers. You can sign up for free by clicking here or you can login if you are already a member.

Dendreon Corporation (DNDN), Allied Nevada Gold Corp. (ANV), Nanosphere, Inc. (NSPH): Five of Last Week’s Biggest Losers

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 Aug. 8 Weekly Loss
Allied Nevada Gold Corp. (NYSEMKT:ANV) $3.71 37%
Nanosphere, Inc. (NASDAQ:NSPH) $2.14 31%
Dendreon Corporation (NASDAQ:DNDN) $3.39 26%
Fusion-IO, Inc. (NYSE:FIO) $11.33 23%
Jamba, Inc. (NASDAQ:JMBA) $13.71 12%

Source: Barron’s.

Let’s start with Allied Nevada Gold Corp. (NYSEMKT:ANV). The gold and silver miner proved to be fool’s gold after falling woefully short of Wall Street expectations. Allied Nevada Gold Corp. (NYSEMKT:ANV) earned half as much as the market was expecting and its $59 million in revenue was a huge miss when pitted against the $81.4 million that the pros were modeling.

Allied Nevada Gold Corp. (NYSEMKT:ANV) also spooked investors by announcing the delay of a construction of a new mill until it can perform some more due diligence. At least one analyst didn’t have a problem performing the due diligence, as Cowen downgraded the stock two days after the report.

There will be blood at Nanosphere, Inc. (NASDAQ:NSPH). The molecular diagnostics company is starting to gain traction for its gram positive blood culture test, but it’s not growing as quickly as it thought it would. Nanosphere, Inc. (NASDAQ:NSPH) revised its outlook on Wednesday. It now sees no more than $11 million in revenue on 150 to 200 customer placements. Back in May it was eyeing $13 million to $15 million in revenue with as many as 250 customer placements.

Dendreon Corporation (NASDAQ:DNDN)Dendreon Corporation (NASDAQ:DNDN) surrendered its entire weekly drop on Friday after posting disappointing results. The biotech fell short on both ends of the income statement, as its loss of $0.45 a share on $73.3 million in revenue missed Wall Street’s targets of a deficit of $0.42 a share on $75.6 million in revenue.

However, the real bad news came in its outlook. Provenge is Dendreon Corporation (NASDAQ:DNDN)’s moneymaker, and the biotech is warning that the prostate cancer treatment won’t see year-over-year growth. Between its costly price tag and heightened competition, investors are getting cold feet ahead of the immunotherapy’s likely approval in Europe.

Fusion-IO, Inc. (NYSE:FIO) also took a hit this week. The data storage specialist posted a slight decline in revenue for its latest quarter, and adjusted earnings fell even harder. Investors were holding out for improvement on the top line.

Fusion-IO, Inc. (NYSE:FIO) is forecasting revenue to climb 20% during the fiscal year that began last month. That may come as a relief after the disappointing quarter it just had, but analysts were holding out for a 30% bounce.

Jamba, Inc. (NASDAQ:JMBA) shares were squeezed after pouring out ho-hum results. Revenue climbed just 2% in its latest quarter for the parent company of the 829-unit Jamba Juice smoothie chain. Wall Street was betting on 6% top-line growth.

Earnings were in line with expectations, but it was disappointing to see Jamba’s stores fail to thrive in a climate of warm temperatures and new menu additions. Jamba, Inc. (NASDAQ:JMBA) did stick to its store-level outlook for all of 2013, but it wasn’t enough to satisfy investors that were thirsty for more.

Ready for a bounce
If you owned some of these losers, how about following the smart money into winners?

The article 5 of Last Week’s Biggest Losers originally appeared on and is written by Rick Munarriz.

Longtime Fool contributor Rick Munarriz owns shares of Jamba. The Motley Fool owns shares of Dendreon.

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

DOWNLOAD FREE REPORT: Warren Buffett's Best Stock Picks

Let Warren Buffett, George Soros, Steve Cohen, and Daniel Loeb WORK FOR YOU.

If you want to beat the low cost index funds by 19 percentage points per year, look no further than our monthly newsletter.In this free report you can find an in-depth analysis of the performance of Warren Buffett's entire historical stock picks. We uncovered Warren Buffett's Best Stock Picks and a way to for Buffett to improve his returns by more than 4 percentage points per year.

Bonus Biotech Stock Pick: You can also find a detailed bonus biotech stock pick that we expect to return more than 50% within 12 months.
Subscribe me to Insider Monkey's Free Daily Newsletter
This is a FREE report from Insider Monkey. Credit Card is NOT required.