With the major market indexes sitting close to new highs, some of the most prominent billionaire investors continue to favor well-entrenched industry leaders that are involved in artificial intelligence (AI).

Chase Coleman's net worth is estimated at more than $5 billion, according to Forbes. His firm, Tiger Global Management, continues to hold a stake in Nvidia (NASDAQ: NVDA), the leading supplier of AI chips, which has delivered a 447% return to shareholders over the last 18 months.

Andreas Halvorsen is CEO of Viking Global Investors and has a net worth estimated at more than $7 billion. The firm oversees a multibillion-dollar stock portfolio, and its largest investment in the second quarter was Amazon (NASDAQ: AMZN).

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Source Fool.com