When a stock hits a fresh high, that can signal that it’s on its way to greatness -- or that it has run its course. Even with the risk of the latter, searching for these outperformers can reveal companies that are doing something right, much to their investors' delight.

Digging deeper
With that in mind, we'll use the aggregate intelligence of the 110,000-plus investors participating in Motley Fool CAPS to find stocks hitting 52-week highs today. The community's approval (signified by four- and five-star ratings) could be a sign that further research is in order.

Here are three such stocks:

 

Today’s High

Industry

CAPS Rating

Fools Saying Outperform

The Western Union Company (NYSE:WU)

$28.00

Diversified services

*****

952 of 981

H.J. Heinz Company (NYSE:HNZ)

$51.44

Food and beverage

***

308 of 349

Union Pacific Corp (NYSE:UNP)

$83.91

Transportation

*****

788 of 820

Source: Motley Fool CAPS, as of July 30, 2008

Other Five-Star Diversified Services Companies
Jacobs Engineering Group, Inc. (NYSE:JEC) -- up 31.6% in the past year.
Giant Interactive (NYSE:GA) -- stock price is 44.9% cheaper than IPO in November.

Other Five-Star Transportation Companies
Norfolk Southern Corp. (NYSE:NSC) -- up 41.7% in the past year.
Burlington Northern Santa Fe Corp (NYSE:BNI) -- up 24% in the past year.

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Fool analyst Dan Dzombak wishes he had bought these stocks last year. Unfortunately, he does not have a financial position in any of the stocks mentioned in this article.

HJ Heinz is a Motley Fool Income Investor pick. Western Union is a Motley Fool Inside Value recommendation. Try any of our Foolish newsletters today, free for 30 days. The Motley Fool has a disclosure policy.