Nvidia co-founder and CEO Jensen Huang is now nearly as rich as longtime billionaire Warren Buffett — and could even soon surpass the Oracle of Omaha, in terms of net worth.

Huang, 63, has a $142 billion net worth — including a $27.6 billion increase since January 1 — according to a Bloomberg estimate on Wednesday evening. Much of his wealth comes from his roughly 3.5% stake in Nvidia, which is currently the world’s most valuable public company.

Nvidia’s market cap briefly passed $4 trillion on Wednesday, making it the first to ever reach that benchmark, and its stock is up roughly 22%, year-to-date. In the technology industry’s artificial intelligence arms race, Nvidia’s computer chips have become valuable components for multiple leading AI developers.

The company currently has a market cap of $4 trillion. Its market valuation could peak near $6 trillion, Loop Capital analyst Ananda Baruah said in a client note on Wednesday, according to Forbes.

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