Welcome back to our 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 week and the week prior, ethanol producers such as BioFuel Energy (NASDAQ:BIOF) were about as popular as Isaiah Washington on the set of Grey's Anatomy. They're once again leading the laggards this week, off by an average of 13.5% over the last 30 days.

Second and third place, meanwhile, may as well be a tie. Why? Because there's really no difference between homebuilders, which are down 13.2%, and residential construction firms, which have fallen 10.6%.

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

Beazer Homes (NYSE:BZH)

*

176

125

71.0%

Brookfield Homes (NYSE:BHS)

*

81

56

69.1%

U.S. BioEnergy

*

143

91

63.6%

WCI Communities (NYSE:WCI)

*

129

81

62.8%

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

Walter Industries (NYSE:WLT)

****

842

820

97.4%

Lafarge SA (NYSE:LR)

****

37

36

97.3%

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:

Fool contributor Tim Beyers, who is ranked 5,169 out of more than 30,800 rated players 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. Tim's portfolio holdings can be found at his Fool profile. His thoughts on growth stocks, Foolishness, and investing in general may be found in his blog. Walter Industries is a Motley Fool Hidden Gems recommendation. The Motley Fool's disclosure policy freezes out Wall Street's worst.