Welcome back to another Foolish review of the coldest stocks as ranked by Motley Fool CAPS. We're looking at the three worst-performing industries over the past 30 days and your favorite short and long candidates in each.

Last time, ethanol producers were more out of place than Dick Cheney at a MoveOn.org convention. This week, they're unwelcome by association. Renewable fuel stocks are off by an average of 22.7% since mid-October.

I'd give you second place next, but there's little difference between renewable-fuel stocks and renewable-energy technology. Not surprisingly, stocks from this sector are also down 22.7% over the last 30 days.

It's a steep drop from there. Stocks from Norway, our third-place finisher, are off just 11.9% on average.

According to you, our Foolish readers, the worst stocks in these industries to own now -- i.e., those rated one or two out of a maximum five stars in CAPS -- are:

Company

CAPS Stars

No. of CAPS Ratings

Bearish CAPS Ratings

Bear Ratio

BioFuel Energy (NASDAQ:BIOF)

*

69

42

60.9%

U.S. BioEnergy

*

207

125

60.4%

Aventine (NYSE:AVR)

*

351

162

46.2%

Pacific Ethanol (NASDAQ:PEIX)

*

519

210

40.5%

Source: Motley Fool CAPS.

And your favorite long candidates -- i.e., those rated four or five stars in CAPS -- are:

Company

CAPS Stars

No. of CAPS Ratings

Bullish CAPS Ratings

Bull Ratio

Norsk Hydro (NYSE:NHY)

*****

343

338

98.5%

Statoil (NYSE:STO)

*****

305

300

98.4%

Source: Motley Fool CAPS.

Do you agree? Disagree? Let us know what you think by signing up for CAPS today. It's 100% free to participate.

Cap off your day with related CAPS Foolishness:

Norsk Hydro is an Income Investor recommendation. Try this market-beating publication free for 30 days.

Fool contributor Tim Beyers, who is ranked 10,213 out of more than 65,000 participants in CAPS, is a sucker for growth stocks and a regular contributor to David Gardner's Motley Fool Rule Breakers service. Tim didn't own shares of any of the companies mentioned in this story at the time of publication. Find Tim's portfolio here and his latest blog commentary here. The Motley Fool's disclosure policy freezes out Wall Street's worst.