OpenAI Billionaire Sam Altman Has Invested in These 4 Tech Stocks. Which Is the Best Buy Now?

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There may be no more important business leader these days than OpenAI CEO Sam Altman.

Altman's company kicked off the artificial intelligence (AI) boom with the launch of ChatGPT in November 2022, and since then it's remained at the cutting edge of generative artificial intelligence.

It's received an estimated $13 billion in investments from Microsoft and forged a close partnership with the tech giant, powering AI on products like Azure, Github, and Office. OpenAI has also continued to impress with its own products such as Dall-E, a text-to-image generator, and Sora, a text-to-video generator, in addition to ChatGPT.

Prior to serving as OpenAI CEO, Altman led Y Combinator, the Silicon Valley start-up incubator, and he's made a number of successful investments in start-ups through various funds that have helped him become a billionaire. Keep reading to see four stocks Altman has invested in.

An investor sitting at a table looking at various screens.
Image source: Getty Images.

1. Reddit

Probably the best known of Altman's investments is Reddit (NYSE: RDDT). The social media company revealed Altman to be a major investor in its initial pubic offering (IPO) paperwork. His stake was estimated to be worth $600 million after Reddit's post-IPO pop.

Altman knows Reddit well. He previously served on the company's board and was even its CEO for eight days. He also said in 2014 when he announced his investment in Reddit that he had been a daily Reddit user for the last nine years and got to know Reddit's founders at Y Combinator.

OpenAI also used Reddit's content to train its AI models, and Reddit has sold itself on its AI potential as it believes it has a competitive advantage in AI training data.

Altman clearly knows the company well and, thus far, his investment has paid off.

2. Airbnb

Altman is good friends with Airbnb (NASDAQ: ABNB) CEO Brian Chesky. The two consulted on various initiatives in the past, and Chesky came to Altman's defense when he was briefly fired as OpenAI's CEO.

Altman invested $100,000 in Airbnb in 2008 when the company was in its short-term rental infancy.

It's unclear what the current status of Altman's investment is, but it's paid off handsomely for the OpenAI CEO even if he already sold it. Airbnb continues to grow the top line and generates a wide operating margin, a sign of its competitive advantage.

Today, Airbnb has a market cap of $106.8 billion and is the clear leader in its market.

3. Uber

Altman was also an early investor in Uber (NYSE: UBER), putting $100,000 into the ride-sharing app and recognizing the potential for an app-based transportation marketplace.