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, subprime lenders had shed the slime and stepped into the sun. Back to the shade, fellas. Time to make room for the nickel miners. They're up 29.2% on average over the past 30 days.

But it's our second-place stocks that shine brightest. That's where diamond miners place, and they're up 23.4% since mid-August. Bringing up the rear are the fertilizer producers, whose 22.4% average return smells especially sweet.

According to you, our Foolish readers, the best stocks in these industries to own now -- i.e., those with four or five of the maximum five stars in CAPS -- are:

Company

CAPS Stars

No. of CAPS Ratings

Bullish CAPS Ratings

Bull Ratio

Companhia Vale de Rio Doce (NYSE:RIO)

*****

1,846

1,814

98.3%

Agrium (NYSE:AGU)

*****

169

167

98.8%

Anglo American (NASDAQ:AAUK)

*****

408

399

97.7%

BHP Billiton (NYSE:BHP)

*****

1,131

1,111

98.2%

Aber Diamond (NASDAQ:ABER)

*****

33

32

96.9%

Rio Narcea Gold Mines (AMEX:RNO)

*****

447

432

96.6%

Source: Motley Fool CAPS.

Normally I'd list your favorite short candidates here. This time, however, you don't have any. No one- or two-star stocks made this week's list of the worst of the worst.

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 8,812 out of more than 65,000 participants in CAPS, didn't own shares in any of the companies mentioned in this article at the time of publication. Find Tim's portfolio here and his latest blog commentary here. The Motley Fool's disclosure policy is hotter than city asphalt in the summer heat.