In this episode of Motley Fool Hidden Gems Investing, Motley Fool contributor Rachel Warren sits down with Bethany McLean, veteran investigative journalist and co-author of The Smartest Guys in the Room, to continue their discussion. McLean turns the lens to the market right now, talking about: Why the free cash flow of the Magnificent Seven is quietly turning negative Why the circular financing inside the AI ecosystem makes it nearly impossible to see what's really going on, Why the S&P 500 index fund you think is keeping you diversified is actually one of the most concentrated AI bets you can make. To catch full episodes of all The Motley Fool's free podcasts, check out our podcast center.
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This podcast was recorded on Aug. 2, 2026. Bethany McLean: Your index fund isn't your index fund anymore, meaning that the S&P 500 index funds are heavily weighted toward the hyperscaler, so your index fund is a bit on the AI economy. If you think that your index fund is still helping you profit from a broad swath of the market, it's not.
Rachel Warren: That was Bethany McLean, veteran investigative journalist and co-author of The Smartest Guys in the Room. I'm Motley Fool analyst Rachel Warren. Last week, Bethany and I talked through the psychology of corporate fraud, the red flags investors miss, and what really separates a visionary CEO from a fraudster.
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