If you've been keeping up with the tech industry, you've witnessed artificial intelligence (AI) go from a niche topic to the hottest theme in business. It's almost inescapable at this point. Many businesses have benefited from the AI boom, but maybe none more so than Nvidia (NASDAQ: NVDA).

The chipmaker's stock is up by more than 160% this year alone, continuing a rally that has seen its stock price increase by more than 760% in the past year and a half. It even briefly took the title of the "world's most valuable public company," passing tech titans and Apple.

Nvidia's run has been remarkable, there's no doubt. However, with so many investors rushing to buy the stock, others are wondering whether the hype has pushed it into bubble territory.

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Source Fool.com