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, energy investors were hopped up on more juice than a Major League Baseball team, but not today. Natural gas explorers top this week's list of hotheads, up 31.5% over the past 30 days.

Who are the other hotties? Have a look:

  • Platinum, for the second straight week, is richer than gold. Stocks in this sector are, as a group, up 20.6% over the last 30 days.
  • Nonmetallic mineral miners, meanwhile, are unearthing returns in the third spot. Stocks in this sector are, as a group, up 19.1% over the past 30 days.

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

International Royalty

*****

46

46

100.0%

TGC Industries

*****

293

289

98.6%

Anglo American

*****

257

250

97.3%

China Natural Gas

*****

35

34

97.1%

Rio Narcea Gold Mine (AMEX:RNO)

*****

264

256

96.9%

Great Basin Gold (AMEX:GBN)

*****

56

53

94.6%

Storm Cat Energy (AMEX:SCU)

*****

37

35

94.6%

New Gold (AMEX:NGD)

*****

16

15

93.8%

Source: Motley Fool CAPS.

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

Company

CAPS Stars

No. of CAPS Ratings

Bearish CAPS Ratings

Bear Ratio

Fronteer Development

*

265

92

34.7%

Stillwater Mining

*

50

13

26.0%

Solitario Resources (AMEX:XPL)

**

10

2

20.0%

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 5,531 out of more than 28,300 in CAPS, didn't own shares in any of the companies mentioned in this article at the time of publication. All of his portfolio holdings can be found at Tim's Fool profile. His thoughts on hot stocks, Foolishness, and investing in general may be found in his blog. The Motley Fool's disclosure policy is hotter than city asphalt in the summer heat.