Stanley Druckenmiller's Q2 Portfolio Includes Amazon, Alphabet, but His Largest Holding Is Genetic Testing Company Natera
In his latest quarterly filing (13F), billionaire investor Stanley Druckenmiller added positions in Amazon and Alphabet. However, the largest holding in his portfolio is not one of these tech giants or even Nvidia as might be expected — it's molecular diagnostics company Natera (NASDAQ: NTRA). This signals a strong conviction from an experienced macro investor toward a mid-cap firm operating primarily through lab-based DNA testing services. Natera focuses on cell-free DNA analysis for pregnancy, cancer detection, and organ health monitoring. The company reported significant growth in Q1 2026 with $696.6 million in revenue (up nearly 39% YoY) and processed over one million tests in a single quarter for the first time. In Q2, Natera's revenue rose to $752.8 million, with oncology volumes increasing by 54%. The firm also raised its full-year guidance to between $2.85 billion and $2.91 billion. A key driver of growth is Signatera, a personalized molecular residual disease test for cancer detection that has secured regulatory approvals in the U.S., Japan, and EU. Natera's use of AI models trained on over 300,000 patient data points enhances its competitive edge.
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