Shares of (NASDAQ: ROKU) recently surged more than 30% in response to a second-quarter earnings report the company announced after the market closed on Thursday, July 27.

The recent rally drove Roku's year-to-date return up to an eye-popping 120% last week, and plenty of investors want to know if it has more fuel in the tank.

Is Roku still a good growth stock to buy? Let's look at the recent results that pushed it higher to find out.

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Source Fool.com