Siemens Energy shares plunged 31% on Friday morning after the company scrapped its profit forecast.
Wolfgang Rattay | Reuters
Siemens Energy shares plunged on Friday after the company scrapped its profit forecast and warned that costly problems at its wind turbine unit could last for years.
The stock price was last seen down 36% during afternoon deals.
The company, born from the spinoff of the former gas and power division of German conglomerate Siemens, announced late Thursday that a review of issues at subsidiary Siemens Gamesa had found a “substantial increase in failure rates of wind turbine components.”
The Siemens Gamesa board has initiated an “extended technical review” aimed at improving product quality that the parent company said will incur “significantly higher costs” than previously assumed, now estimated to be in excess of 1 billion euros ($1.09 billion).
“It is too early to have an exact estimate of the potential financial impact of the quality topics and to gauge the impact of the review of our assumptions on our business plans,” Siemens Energy said in a statement.
“However, based on our initial assessment as of today, the potential magnitude of the impact leads us to withdraw the profit assumptions for Siemens Gamesa and consequently the profit guidance for Siemens Energy Group for fiscal year 2023.”
Siemens Gamesa has been a thorn in the side of its parent company since its full takeover late last year.
Siemens Energy share price
Siemens Energy CEO Christian Bruch told journalists on a call Friday that “too much had been swept under the carpet” at Siemens Gamesa and that the quality issues were “more severe than [he] thought possible,” according to Reuters.
Nicholas Green, head of European capital goods at Alliance Bernstein, said Siemens Energy would likely be able to climb back from the fall, but the scale of the problems had shocked the market.
“There’s a 17 billion euros service order book and that is delivering service on installed wind farms and in wind turbines for quite a number of years ahead — five years ahead, sometimes 10-year contracts — and to discover that a handful of your components aren’t working as you planned, that maybe you’ll need to go in and replace those components, that is a very large liability that you’re taking on,” he said.
Siemens Energy estimates that component failures may be occurring in between 15% and 30% of its installed fleet of turbines, but Green noted that there is still a “slight question mark about where that liability ends.”
“With luck, when they report back at the beginning of August, they will have managed to put some sort of brackets around the scale of the cost here and the scale of the obligations ahead of them, but certainly it is an alarmingly large hit and it’s taken the market by surprise,” he said.
Peter Thiel, president and founder of Clarium Capital Management LLC, holds hundred dollars bills as he speaks during the Bitcoin 2022 conference in Miami, Florida, U.S., on Thursday, April 7, 2022.
Eva Marie Uzcategui | Bloomberg | Getty Images
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The current wave of interest in Ethereum and related assets follows an announcement by Robinhood that it will enable trading of tokenized U.S. stocks and ETFs across Europe, and a groundswell of interest in stablecoins throughout June following Circle’s wildly successful IPO and ongoing progress in Congress on the Senate’s proposed stablecoin bill, the GENIUS Act.
The price of ether itself also continued its rally, up more than 4% Wednesday. The coin has doubled in price in the past three months.
Thiel is a venture capitalist and hedge fund manager best known as a cofounder of both PayPal and Palantir and an early investor in Facebook. Founders Fund was an investor in Tagomi, the crypto brokerage acquired by Coinbase in 2020, and Polymarket, the prediction market built on Ethereum.
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NVIDIA founder and CEO Jensen Huang speaks during the NVIDIA GTC Paris keynote, part of the 9th edition of the VivaTech technology startup and innovation fair, held at the Dôme de Paris in the Porte de Versailles exhibition center in Paris on June 11, 2025.
Mustafa Yalcin | Anadolu | Getty Images
Nvidia CEO Jensen Huang sold another 225,000 shares of the chipmaker, totaling about $37 million, according to a U.S. Securities and Exchange Commission filing.
The sale comes as part of a plan adopted in March for Huang to sell up to 6 million shares of the leading artificial intelligence company. Huang began trading stock last month. His most recent sale, disclosed last Friday, totaled 225,000 shares, or about $36 million.
Since he began selling stock this year, Huang has unloaded 1.2 million shares, totaling about $190 million, according to InsiderScore. In last year’s prearranged plan, Huang cashed in over $700 million.
AI demand and the need for graphics processing units powering large language models have spiked Huang’s net worth and propelled Nvidia past a $4 trillion market capitalization, making it the most valuable company.
That surge in value has put Huang above Berkshire Hathaway’s Warren Buffett in net worth on Bloomberg’s Billionaire Index.
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In another significant win, Nvidia said this week that it plans to soon restart sales of its H20 chips to China after the Trump administration indicated that it would approve export licenses.
Earlier this year, the administration said Nvidia would need a license approval to ship the chips, designed specifically for China.
“The U.S. government has assured NVIDIA that licenses will be granted, and NVIDIA hopes to start deliveries soon,” the company said in a statement Tuesday.
Huang said during a press conference on Wednesday in Beijing, China, that he wants to sell chips more advanced than the H20 to China at some point.
Huang wasn’t the only stakeholder to unload Nvidia shares. Board member Brooke Seawell sold $16 million worth of stock.
Jensen Huang, chief executive officer of Nvidia Corp., speaks to members of the media in Beijing, China, on Wednesday, July 16, 2025.
Na Bian | Bloomberg | Getty Images
Nvidia is looking to ship more advanced chips to China than its current generation, CEO Jensen Huang said on Wednesday, as he looks to revitalize sales in the world’s second-largest economy.
The comments come after Nvidia said on Monday that it will resume sales of its H20 artificial intelligence chip to China, reversing a previous ban. The H20 is a less-advanced semiconductor designed for AI workloads that comply with U.S. export restrictions to China.
“I hope to get more advanced chips into China than the H20,” Huang said during a press conference in Beijing, China, in response to a CNBC question.
“And the reason for that is because technology is always moving on … today Hopper’s terrific but some years from now we will have more and more and better and better technology, and I think it’s sensible that whatever we’re allowed to sell in China will continue to get better and better over time as well,” he said referencing Hopper, Nvidia’s chip architecture that the H20 is built on.
Nvidia has been caught in the crosshairs of U.S.-China tensions over trade and technology. The tech giant has faced several rounds of restrictions that have forced it to restrict access of its most advanced chips to China. In response, Nvidia has developed semiconductors that comply with export restrictions, such as the H20.
Nvidia took a $4.5 billion writedown on the unsold H20 inventory in May and said sales in its last financial quarter would have been $2.5 billion higher without any export curbs.
Huang has trod a fine line between praising U.S. President Donald Trump’s policies regarding reshoring chip manufacturing to America while also lobbying for change on curbs to China.
The Nvidia boss has argued the Chinese AI market could be worth $50 billion in the next two-to-three years and that it would be a “tremendous loss” for American firms not to be part of that. Huang also told CNBC this year that Nvidia’s Chinese rival Huawei has “got China covered” if U.S. firms can’t participate in the market.
“Export control are things that are outside of our control and they can be quite disruptive to our business. It is our job only to inform the governments of the nature and the unintended consequences of the policies that they make,” Huang said during his visit to Beijing.
Nvidia has also laid out a roadmap to release more advanced chips, though it remains unclear if the U.S. government would allow Nvidia to sell more advanced products to Chinese companies. However, U.S. Commerce Secretary Howard Lutnick suggested on Tuesday that the government would continue to allow chip sales to China so that companies in the market rely on American technology.
“The idea is the Chinese are more than capable of building their own,” Lutnick told CNBC. “You want to keep one step ahead of what they can build, so they keep buying our chips.”