Stanley Druckenmiller likes to make big bets.
The 72-year-old billionaire once said that if you see something really exciting, “Bet the ranch on it.”
With the tech-heavy Nasdaq Composite down about 2% year to date, perhaps his recent moves can offer investors some hints.
Druckenmiller was formerly George Soros’s right-hand man. He helped make the famous bet against the British pound in 1992, a trade that “broke the Bank of England.”
He is the former chairman and president of Duquesne Capital Management, which he founded in 1981 and managed until it closed in 2010. Over its nearly three decades, the firm delivered an average annual return of 30%.
After Druckenmiller closed Duquesne Capital to outside investors, he actively managed his wealth and investments under a family office structure, now called Duquesne Family Office.
Duquesne Family Office returned 37% over the past year and gained 123.25% over the past five years, according to data from Stockcircle.
Some megacap technology names were among Druckenmiller’s most notable buys in the fourth quarter of 2025, according to Whalewisdom’s data based on 13F filings.
Amazon (AMZN) remained one of the fund’s largest positions, with Druckenmiller adding 300,870 shares worth about $63 million, increasing the stake by 68.8%. Amazon is the fund’s seventh-largest holding.
Notably, Amazon was also one of George Soros’s fund’s largest buys in the fourth quarter, with Soros Fund Management adding 133,385 shares.
Related: Billionaire George Soros buys $137M in AI chips, trims Alphabet
Druckenmiller also sharply raised his Alphabet (GOOGL) position by 276.7% from the previous quarter, adding 282,800 shares worth roughly $89 million.
Druckenmiller’s moves come as both companies continue to ramp up spending on artificial intelligence infrastructure and cloud. Shares of the Google parent surged roughly 30% during the fourth quarter, while Amazon gained 5%.
In contrast, Druckenmiller fully exited Meta, selling all 76,100 shares after the stock tumbled 10% in the previous quarter.
Within semiconductors, Druckenmiller reduced his Taiwan Semiconductor (TSM) stake by 29%, bringing it to his eighth-largest holding, down from the fourth-largest position in Q3 2025.
TSMC is the world’s largest chip foundry and a critical manufacturer for Nvidia (NVDA) and other AI chip makers.
On Jan. 15, the company posted strong fourth-quarter results, as earnings per ADR rose 35% year over year to $3.14. Revenue for the quarter reached $33.73 billion, up 25.5% from a year ago. Gross margin, a key profitability measure, was 62.3%, up from 59.5% a year ago.
