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, fertilizer producers were coming up roses, and they still smell sweet, enjoying a 28.5% average gain over the past 30 days.

Who are the other hotties? Have a look:

  • In second place, stocks from Hawaii, land of sugar and white-sand beaches, have become a sugar daddy for investors, up 22.9% as a group since late May.
  • And in third place, solar stocks are lighting the way to superior returns, up 17.3% on average over the past month.

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

Kyocera
(NYSE:KYO)

****

56

55

98.2%

Agrium (NYSE:AGU)

****

98

95

96.9%

Suntech Power (NYSE:STP)

****

1,272

1,228

96.5%

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

Hoku Scientific (NASDAQ:HOKU)

*

44

23

52.3%

Canadian Solar (NASDAQ:CSIQ)

*

137

70

51.1%

Trina Solar (NYSE:TSL)

*

452

194

42.9%

Hawaiian Holdings (AMEX:HA)

*

28

10

35.7%

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 No. 2,838 out of more than 31,300 rated players in CAPS, didn't own shares in 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 hot stocks, Foolishness, and investing in general may be found in his blog. Suntech Power is a Rule Breakers pick. The Motley Fool's disclosure policy is hotter than city asphalt in the summer heat.