- Trump says US will detain migrants in Guantanamo
- Syria authorities name Sharaa interim president: state media
- Rwanda-backed fighters advance into DR Congo after mostly seizing city
- US Fed pauses rate cuts, resisting Trump pressure
- White House sparks confusion over fate of unprecedented funding freeze
- Harvey Weinstein seeks early retrial over 'hellhole' prison conditions
- Fire erupts outside Man City stadium before Champions League clash
- Maison Margiela names new lead designer during Paris Haute Couture Week
- Trump's health pick RFK Jr grilled in critical Senate hearing
- Germany's far-right 'firewall' crumbles as migration debate flares
- Romanian security contractors surrender amid DR Congo fighting
- With China's DeepSeek, US tech fears red threat
- US commerce secretary pick favors sweeping tariffs, hawkish China stance
- Spain's top prosecutor denies leaking documents against opposition
- Immigration 'flooding' remark row piles pressure on French PM
- Wales boss Gatland wary of 'humble' France hero Dupont
- Frenchman on trial for killing ex-partner after years of alleged abuse
- Stocks diverge, dollar steady before Fed rate decision
- 'Very sad' west Londoners oppose Heathrow expansion
- Fatal Ukrainian drone barrage on Russia hits oil refinery
- 'Less snow': warm January weather breaks records in Moscow
- Israel says Hamas to free 11 more hostages this week
- Trump's health sec pick RFK Jr in critical Senate hearing
- Eurovision 2025 first tickets wave sells out in minutes
- Trump to sign migrant law as crackdown mounts
- Maison Margiela names new director during Paris Haute Couture Week
- German industry sounds alarm as government cuts growth forecast
- Facing Trump and China, EU unveils pro-business roadmap
- Rwanda-backed group controls most of DRC city as mediator urges talks
- The pioneering science linking climate to weather disasters
- Germany's far-right 'firewall' under strain as migration debate flares
- German skaters Hase and Volodin dance into European championships lead
- Latin American migration summit off as leaders tread carefully with Trump
- Stocks diverge, dollar firmer before Fed rate decision
- Climate activists defend 'future generations', appeal lawyer says
- Prince Feisal Al-Hussein says he can 'bridge gap' in Olympic movement
- Dreams of Britain warm migrants against harsh French winter
- Pentagon strips Trump foe Milley of security detail
- Hamas accuses Israel of delaying Gaza aid
- At least 30 dead in India stampede at Hindu mega-festival
- Immigration row piles pressure on French PM after 'flooding' remark
- Williams, Adams return for Wales' Six Nations opener against France
- Support for Brexit sinks to lowest level in UK: poll
- Williams, Adams back for Wales' Six Nations opener against France
- Accidents spotlight fear of training in traffic for professional cyclists
- UK backs third Heathrow runway in growth takeoff bid
- Khawaja, Smith tons power Australia to 330-2 in first Test
- 'Good news': Dutch chip giant ASML welcomes DeepSeek
- Lion cub gifted to Pakistani YouTube star causes wedding chaos
- 'Monte Cristo', 'Emilia Perez' front-runners at France's Cesar film awards
Nvidia loses nearly $600 bn in value as Chinese AI firm jolts tech shares
US chip-maker Nvidia led a rout in tech stocks Monday after the emergence of a low-cost Chinese generative AI model that could threaten American dominance in the fast-growing industry.
The chatbot developed by DeepSeek, a startup based in the eastern Chinese city of Hangzhou, has apparently shown the ability to match the capacity of US AI pace-setters for a fraction of the investments made by American companies.
Shares in Nvidia, whose semiconductors power the AI industry, fell nearly 17 percent on Wall Street, erasing nearly $600 billion of its market value.
The tech-rich Nasdaq index finished down more than three percent.
DeepSeek, whose chatbot became the top-rated free application on Apple's US App Store, said it spent only $5.6 million developing its model -- peanuts when compared with the billions US tech giants have poured into AI.
US "tech dominance is being challenged by China," said Kathleen Brooks, research director at trading platform XTB.
"The focus is now on whether China can do it better, quicker and more cost effectively than the US, and if they could win the AI race," she said.
Art Hogan, chief market strategist at B. Riley Wealth, described the market's response Monday as "shoot first, ask questions later," noting that some are skeptical of the Chinese company's assertions.
"Everyone is trying to figure out 'Can it be believed?' and 'What does it mean,'” Hogan said.
As DeepSeek rattled markets, the startup on Monday said it was limiting the registration of new users due to "large-scale malicious" cyberattacks on its services.
AI players Meta and Microsoft are among the tech giants scheduled to report earnings this week, offering opportunity for comment on the emergence of the Chinese company.
Shares in another US chip-maker, Broadcom, fell 17.4 percent while Dutch firm ASML, which makes the machines used to build semiconductors, saw its stock tumble 6.7 percent.
Constellation Energy, which is planning to build significant energy capacity for AI, sank more than 20 percent.
Wall Street's broad-based S&P 500 index shed 1.5 percent while the Dow advanced 0.7 percent.
In Europe, the Frankfurt and Paris stock exchanges closed in the red while London finish flat.
Asian stock markets mostly slid.
Just last week following his inauguration, Trump announced a $500 billion venture to build infrastructure for AI in the United States led by Japanese giant SoftBank and ChatGPT-maker OpenAI.
SoftBank tumbled more than eight percent in Tokyo on Monday while Japanese semiconductor firm Advantest was also down more than eight percent and Tokyo Electron off almost five percent.
- Interest rates in focus -
Besides tech earnings, this week also sees interest-rate decisions from the US Federal Reserve and European Central Bank, ahead of American inflation data.
Equities enjoyed a healthy run-up last week on the hope that Trump's second administration would take a less hardball approach to global trade.
However, his threat Sunday that he would hit Colombian goods with a 25 percent tariff -- rising to 50 percent next week -- and revoke the visas of government officials set off alarm bells.
The move came after President Gustavo Petro blocked deportation flights from the United States.
In response to Trump's decision, Petro initially announced retaliatory levies of 25 percent on imports from the United States.
But Bogota later backed down and agreed to accept the deported citizens, with Foreign Ministuis Gilberto Murillo saying they had "overcome the impasse."
- Key figures around 2120 GMT -
New York - Dow: UP 0.7 percent at 44,713.58 (close)
New York - S&P 500: DOWN 1.5 percent at 6,012.28 (close)
New York - Nasdaq: DOWN 3.1 percent at 19,341.83 (close)
London - FTSE 100: FLAT at 8,503.71 (close)
Paris - CAC 40: DOWN 0.3 percent at 7,906.58 (close)
Frankfurt - DAX: DOWN 0.5 percent at 21,282.18 (close)
Tokyo - Nikkei 225: DOWN 0.9 percent at 39,565.80 (close)
Hong Kong - Hang Seng Index: UP 0.7 percent at 20,197.77 (close)
Shanghai - Composite: DOWN 0.1 percent at 3,250.60 (close)
Euro/dollar: DOWN at $1.0492 from $1.0497 on Friday
Pound/dollar: UP at $1.2496 from $1.2484
Dollar/yen: DOWN at 154.61 yen from 156.00 yen
Euro/pound: DOWN at 83.94 pence from 84.08 pence
Brent North Sea Crude: DOWN 1.8 percent at $77.08 per barrel
West Texas Intermediate: DOWN 2.0 percent at $73.17 per barrel
J.Bergmann--BTB