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What: Shares of Harmonic (Nasdaq: HLIT) have popped today, up by as much as 16%, after the company reported fourth-quarter earnings.

So what: Revenue tallied up to $143.6 million, resulting in earnings per share of $0.12. The top line bested the $140.5 million estimate, while earnings came in right on target. Full year revenue was $549.3 million with earnings of $0.41 per share.

Now what: First-quarter guidance came in lighter than expected, which frequently is punishing for companies. Revenue is forecast between $132 million and $142 million, lower than the $144.75 consensus estimate, but it seems like investors are focusing on the bright side of things. CEO Patrick Harshman chalked up the year's results to increased video processing wins throughout its expanding global customer base.

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Fool contributor Evan Niu holds no position in any company mentioned. Click here to see his holdings and a short bio. 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.