There are many reasons why the price of a stock can have a big move upward in just seven days. Whatever is behind it, a surge in the price of a stock is an alarm. It's a bit like hearing a cheer. Upon further investigation, it might turn out to be nothing -- but it could be a major event.
The question to ask is: Has something materially changed within a company to radically alter its desirability as an investment? Let's attempt to answer that for some stocks seeing recent upward price action.
To help, we'll enlist the 115,000-plus members of our Motley Fool CAPS community. Stocks are rated from one to the maximum five stars by CAPS. So far, our data has shown that five-star stocks have seriously outperformed the market.
Without further ado, here are some of this week's biggest movers:
Company
Sector
CAPS Rating
One-Week Price Change*
Sequenom (Nasdaq: SQNM)
Health Care
**
33.2%
Secure Computing (Nasdaq: SCUR)
Technology
*****
24.8%
Ultrashort Real Estate Proshares (AMEX: SRS)
Financial Services
***
14.1%
Vertex (Nasdaq: VRTX)
**** Continued...
Tom Hutchinson is a Motley Fool contributor.
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