The post-earnings behavior of Alphabet (NASDAQ: GOOGL) (NASDAQ: GOOG) stock may understandably befuddle some investors. If you missed the news, the tech giant just posted massive profit growth in the latest quarter and sees an apparent recovery in ad spending. However, that did not negate the robust but lower growth in its Google Cloud segment.

The stock has sunk nearly 10% since the report. Yet, such sharp, short-term swings in the share price could provide a key advantage to long-term investors. Let's see why.

Alphabet filed what most would consider a solid earnings report for the third quarter. It was not so much good and bad news as it was good news and great news. Revenue in Q3 climbed 11% yearly to almost $77 billion.

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Source Fool.com