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

Last time, gaming stocks such as The9 (NASDAQ:NCTY) and Shuffle Master (NASDAQ:SHFL) were cashing in. They've since folded, leaving renewable-energy firms raking in the chips.

No, really. So hot are the green gurus that biofuel specialist Verenium (NASDAQ:VRNM) and its peers took all three spots in this week's list. Each group was up at least -- wait for it -- 60% over the past 30 days.

According to you, our Foolish readers, the best stock (yup, only one) in these industries to own now -- i.e., the one with four or five of the maximum five stars in CAPS -- is:

Company

CAPS Stars

No. of CAPS Ratings

Bull Ratio

30-Day Price Change

Archer Daniels Midland (NYSE:ADM)

****

1,015

92.9%

26.0%

Sources: Motley Fool CAPS and Yahoo! Finance, as of Dec. 21.

And your favorite short candidates -- i.e., those rated with one or two stars in CAPS -- are:

Company

CAPS Stars

No. of CAPS Ratings

Bear Ratio

30-Day Price Change

U.S. BioEnergy

*

251

58.2%

78.2%

BioFuel Energy (NASDAQ:BIOF)

*

56

57.1%

68.0%

VeraSun Energy (NYSE:VSE)

*

371

50.1%

80.9%

Aventine Renewable Energy

*

385

49.1%

66.9%

Pacific Ethanol (NASDAQ:PEIX)

*

611

44.0%

107.4%

Sources: Motley Fool CAPS and Yahoo! Finance, as of Dec. 21.

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