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 HMS Holdings (Nasdaq: HMSY) fell more than 15% in early trading after the company reported decent Q3 results but reduced its fourth-quarter revenue outlook.

So what: Third-quarter revenue climbed 15% to $92.4 million as profit improved 31% to $0.17. Analysts were calling for $0.16 in earnings on $96.76 million in revenue, Bloomberg reports.

Now what: Color me surprised. If anything, given all the back-and-forth over health-care legislation, you'd think HMS services for cutting costs and waste from government and private health-care plans would be in high demand. Apparently that's not the case. Do you agree? Would you buy shares at current prices? Please weigh in using the comments box below.

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Fool contributor Tim Beyers is a member of the Motley Fool Rule Breakers stock-picking team. He didn't own shares in any of the companies mentioned at the time of publication. Check out Tim's portfolio holdings and Foolish writings, or connect with him on Google+ or Twitter, where he goes by @milehighfool. You can also get his insights delivered directly to your RSS reader.

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