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 equipment maker Graco (NYSE: GGG) fell as much as 11% during trading today after releasing earnings last night.

So what: Revenue rose 8% to $234.1 million but earnings per share fell 5% to $0.58, below expectations. The results did include a $4 million charge related to the acquisition of ITW's finishing business.

Now what: The results weren't all that bad; expectations may have just gotten ahead of the company this quarter. The first quarter of last year was a record quarter and the company spent money investing in product development and invested $8 million in capital expenditures during the quarter. I think this is a blip in the long-term business and think a forward P/E ratio of 17 provides a good value after today's drop.

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This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.