As fundamentals-focused long-term investors, Fools never base an investment decision on the daily gyrations of the market. But the market's daily price movements can be useful when looking for new stock ideas for further research, or to keep tabs on watch-list stocks.

Below you'll find today's biggest movers among our five-star stocks -- the highest rating awarded by our CAPS community of more than 110,000 investors. Have a look, and then visit us on CAPS to dig in further on each of them.

 

Up Today

Sector

Sector Past 30 Days

Fools Saying Outperform

Research

Hercules
Foolcaps
(NYSE:HPC)

25.03%

Specialty Chemicals

-13.20%

100 of 110

Research

Overseas Shipholding Group
Foolcaps
(NYSE:OSG)

8.30%

Shipping

-10.53%

211 of 220

Research

Apco Argentina
Foolcaps
(NASDAQ:APAGF)

8.29%

Independent Oil & Gas

-3.54%

181 of 189

Research

Other Five-Star Specialty Chemicals
ShengdaTech (NASDAQ:SDTH) up 0.25%
PowerShares Water Resources (AMEX:PHO) down -0.15%
Other Five-Star Shipping
Frontline Ltd. (NYSE:FRO) up 3.94%
Nordic American Tanker Shipping Limited (NYSE:NAT) up 2.15%
Other Five-Star Independent Oil & Gas
Chesapeake Energy (NYSE:CHK) up 5.39%
Canadian Natural Resources (NYSE:CNQ) up 5.21%