Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of DigitalGlobe (NYSE: DGI) surged as much as 12% in early trading and closed up nearly 9% on better-than-expected second-quarter results.

So what: Revenue rose slightly to $81.7 million from $81 million in last year's Q2 while booking a $0.01-per-share net loss, reversing last year's one penny of profit. Analysts were expecting a wider loss -- $0.02, to be specific -- on $80.4 million in revenue, The Associated Press reported, citing data from FactSet.

Now what: While I understand the merits of a beat, I think there are better earth-imagery specialists out there. Take GeoEye (Nasdaq: GEOY). This Motley Fool Rule Breakers recommendation has earned $1.41 of profit over the trailing 12 months and trades for a small premium to Wall Street's long-term earnings-growth projections. By contrast, DigitalGlobe trades for more than 140 times analysts' best guesses. Which stock would you rather own? Weigh in using the comments box below.

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