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 health-care IT services specialist MedAssets (Nasdaq: MDAS) climbed as high as 12% in intraday trading Monday after its quarterly results topped Wall Street expectations.

So what: Driven by strong growth in all of its segments, MedAssets posted an adjusted profit of $0.23 per share, versus the average analyst estimate of $0.16 per share. The stock has been crushed in 2011, down about 40% over the past six months, so shareholders are naturally hopeful that today's results trigger the start of a prolonged comeback.

Now what: I wouldn't jump into the stock just yet. Unfortunately, management also cut its full-year revenue and low-end earnings outlook today, suggesting that longer-term picture isn't quite as bright as the rally indicates. With the larger, more-established, dividend-paying rival McKesson (NYSE: MCK) available at a reasonable price, passing on MedAssets seems prudent.  

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