Billionaire Stanley Druckenmiller quintuples stake in top semiconductor stock

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Billionaire investor Stanley Druckenmiller doesn’t follow the usual playbook. While many investors share the view not to put all eggs in one basket, he says not necessarily.

"If you really see it, put all your eggs in one basket and watch the basket very carefully," the billionaire has said.

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Druckenmiller was formerly the investor and philanthropist George Soros's right-hand man. He played a key role in the famous bet against the British pound in 1992, a trade that reports described as having "broken the Bank of England.”

He was the founder and longtime chairman of Duquesne Capital Management, which he ran from 1981 until closing it 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 under a family office structure called Duquesne Family Office.

Duquesne Family Office has delivered a consistently strong performance across time frames. The portfolio returned 8.91% over the past year, 106.06% over three years, and 129.61% over five years. Over the past decade, it posted a 275.65% return, according to data from Stockcircle.

The fund manager Stanley Druckenmiller had strong words for President Trump's tariff policy.Bloomberg/Getty Images
The fund manager Stanley Druckenmiller had strong words for President Trump's tariff policy.Bloomberg/Getty Images

'I do not support tariffs exceeding 10%': Druckenmiller

In January, Druckenmiller said President Donald Trump’s return had reignited market enthusiasm and bolstered business optimism. Stock prices, however, fell sharply following Trump’s tariff announcement.

At the time he'd said in a CNBC interview that “the risks [from tariffs] are overblown relative to the rewards. ..."

More recently Druckenmiller spoke out against elevated tariffs, warning that such measures could trigger market instability and economic harm. In an April post on X, he wrote that he did not support "tariffs exceeding 10%."

Related: Iconic fund manager has blunt words on markets after Trump return

In the January remarks he'd said that he would focus on individual stocks, not worrying about the broader market.

The billionaire also said he was bullish on companies in which artificial intelligence would lower costs and drive productivity.

As of March 31 Druckenmiller’s top five holdings were Natera  (NTRA) , Teva Pharmaceutical  (TEVA) , Coupang  (CPNG) , Woodward  (WWD) , and Philip Morris  (PM) , a mix of the health care, e-commerce, engineering and tobacco sectors.

Related: Stanley Druckenmiller’s net worth (& how he made Soros $1 billion)

Druckenmiller buys $95 million of Taiwan Semi shares

In the first quarter of 2025 Druckenmiller quintupled (up 456.9%) his stake in Taiwan Semiconductor (TSM)  from the previous quarter, adding 491,265 shares. That chunk of stock was valued at roughly $95 million as of May 19’s stock price.