Yahoo! (NASDAQ:YHOO) reported second-quarter earnings yesterday, and despite issuing mixed results, shares have bounced as much as 8.5% higher today. Yahoo! missed analysts' expectations on revenue, but reported greater-than-expected earnings per share. But the real story isn't the numbers, says Motley Fool analyst Matt Argersinger. What's the key to Yahoo!'s outperformance? CEO Marissa Mayer.

Erin Kennedy has no position in any stocks mentioned. Fool contributor Matthew Argersinger has no position in any stocks mentioned. The Motley Fool recommends Facebook and Google. The Motley Fool owns shares of Facebook and Google. 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.