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Billionaire Stanley Druckenmiller Bought Amazon and Alphabet in Q2. But His Single Biggest Holding Is Neither of Them -- and It's Not Nvidia Either.

Natera's growth, expanding role in cancer care, and growing diagnostic data platform help explain why Druckenmiller has made it a major portfolio holding, despite valuation and regulatory risks.

Billionaire Stanley Druckenmiller Bought Amazon and Alphabet in Q2. But His Single Biggest Holding Is Neither of Them -- and It's Not Nvidia Either.

Published August 24, 2026 · Category: Finance

Overview

When you look at Stanley Druckenmiller's latest 13F, the headline names are familiar. He added Amazon and Alphabet again. That fits the narrative most people expect from a billionaire macro investor. What surprised me was that his single biggest holding was neither of those giants nor Nvidia. It was a genetic testing company called Natera (NASDAQ: NTRA).

That tells me something important. When a guy with Druckenmiller's track record makes a company almost one-fifth of his portfolio, I pay attention to what that business does and why it might be worth that kind of conviction. So instead of asking why he owns more Amazon, I find myself asking why he is willing to let a mid-cap diagnostics stock sit at the top of the stack.

Details

Natera is not a household consumer brand. It is a molecular diagnostics company focused on cell-free DNA testing. In plain language, it analyzes tiny fragments of DNA circulating in blood to answer questions about pregnancy, cancer, and organ health.

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Source

Originally published at www.fool.com.

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