NEW YORK (TheStreet) -- AVG Technologies (AVG)  is gaining in post-market trading after beating estimates for fourth-quarter earnings and sales.

After the bell, shares have added 7.5% to $18.60.

The security software developer posted per-share earnings of 52 cents for the three months to December. Analysts surveyed by Thomson Reuters had expected earnings of 41 cents a share.

Revenue of $101.9 million was 7% higher than a year earlier and beat consensus of $95.22 million.

Over fiscal 2013, the company generated net income of $2.16 a share, 11 cents higher than analyst consensus, and revenue 14% higher to $407.1 million. Analysts had predicted total sales of $400.35 million.

"2013 was a year of strong growth and transformation for AVG," said CEO Gary Kovacs in a statement. "We enter 2014 with a renewed vision and strategic direction that we believe will position AVG as the online security company, providing software and services to protect devices, data, and people."

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TheStreet Ratings team rates AVG TECHNOLOGIES NV as a Hold with a ratings score of C. The team has this to say about their recommendation:

"We rate AVG TECHNOLOGIES NV (AVG) a HOLD. The primary factors that have impacted our rating are mixed -- some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its notable return on equity, solid stock price performance and revenue growth. However, as a counter to these strengths, we also find weaknesses including unimpressive growth in net income, generally higher debt management risk and weak operating cash flow."