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, makers of organic light-emitting diodes were smiling bright. Not today. This time, firms specializing in acquisitions are sizzling like bacon on a griddle, up by an average of -- get this -- 437.9% over the past 30 days.

You've seen our other hotheads before. Financiers have come in from the cold to rank second, up 25.8% since early August. Greek stocks, meanwhile, are sunning themselves in third, having returned 16.9% over the same period.

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

National Bank of Greece

(NYSE:NBG)

*****

216

214

99.1%

Excel Maritime Carriers

(NYSE:EXM)

*****

468

454

97.0%

Star Maritime Acquisition

(AMEX:SEA)

*****

44

42

95.4%

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

Alternative Asset Management

(NYSE:AMV)

*

11

7

63.6%

CBRE Realty Finance

(NYSE:CBF)

*

80

43

53.8%

Crystal River Capital

(NYSE:CRZ)

*

133

56

42.1%

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 7,737 out of more than 60,000 participants in CAPS, didn't own shares in 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 is hotter than city asphalt in the summer heat.