(NASDAQ: GOOGL) (NASDAQ: GOOG) stock has run like wildfire over the past year, riding the recovery of tech stocks, the rebound of digital advertising, and the accelerating adoption of artificial intelligence (AI). Share prices of the search leader gained 52% during the past 12 months, nearly double the 27% gains of the S 500.

Investor confidence is on the upswing, fueled by the company's improving financial results, which suggests that the advertising market -- which represents the lion's share of Alphabet's revenue -- will continue to gain ground.

Investors who sat out the recent rally are left asking themselves the quintessential investing question: Is a pullback coming, or should they buy Alphabet before the stock runs even higher? Let's see what the evidence suggests.

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Source Fool.com