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 RealPage (NASDAQ:RP) got hammered today, down by 17%, after the company reported earnings with uninspiring guidance.

So what: Adjusted revenue rose to $83.2 million, shy of market forecasts that were calling for $84.2 million. Non-GAAP earnings per share was right on target, though, at $0.12, so nothing to call home about there. The real pessimism centered on guidance.

Now what: Guidance for the current quarter expects revenue in the range of $85.5 million to $87.5 million. Even the high end of guidance would fall short of the $89.4 million that investors were expecting. The bottom line could potentially meet the consensus of $0.14 per share if RealPage stretches a little bit.

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Fool contributor Evan Niu, CFA, has no positions in the stocks mentioned above. The Motley Fool has no positions in the stocks mentioned above. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.