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, jewelers were delivering dazzling returns. Not this week. Technical services firms are the latest to top the hotheads, with a 19.8% average gain over the past 30 days.

Who are the other hotties? Have a look:

  • Engineering firms are in the second spot, designing returns for investors who've watched these stocks advance by an average of 19.7% over the past month.
  • And in third are the LED makers, whose stocks have lit the way to an average return of 17.8% since early May.

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 (out of 5)

No. of CAPS Ratings

Bullish CAPS Ratings

Bull Ratio

VSE Corp. (NASDAQ:VSEC)

*****

34

34

100%

TGC Industries (AMEX:TGE)

*****

306

302

98.7%

SAIC Inc. (NYSE:SAI)

*****

452

430

95.1%

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

Arcadis NV (NASDAQ:ARCAF)

*

14

5

35.7%

CACI International (NYSE:CAI)

**

44

12

27.3%

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:

SAIC is a Motley Fool Inside Value pick. You can obtain 30 days of full access to Inside Value for free by clicking here.

Fool contributor Tim Beyers, who is ranked 4,335 out of more than 29,500 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. The Motley Fool's disclosure policy is hotter than city asphalt in the summer heat.