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Russia, China veto UN resolution on reopening Strait of Hormuz
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Indigenous groups demand greater land protection in Brazil protest
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Fitzpatrick tries to balance goals ahead of Masters
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Trump branded 'crazy' over apocalyptic Iran threats
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Vance hails Orban as 'model' for Europe in pre-election Hungary visit
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McIlroy starting with Young, Howell in Masters repeat bid
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Picasso's 'Guernica' at heart of battle in Spain over location
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Isak named in Liverpool squad for PSG clash after long injury absence
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Young says rise up rankings gives him belief for Masters
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Artemis II crew snaps historic Earthset photo on way home
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Seixas climbs to victory to extend Basque Tour lead
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Oil rises, stocks fall ahead of Trump's Iran deadline
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With Legos, trolling and Twain, Iran pushes war narrative on social media
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Rahm confident of playing '27 Ryder Cup and DP World Tour
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French couple leave Iran after more than three years in detention
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NASA releases picture of 'Earthset' shot by Artemis crew
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Major dreams and Middle East War in Fleetwood's Masters thoughts
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Trump warns 'whole civilization will die' in Iran if ultimatum expires
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Sinner and Alcaraz start fast on Monte Carlo clay in race for No.1
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UK government blocks Kanye West from London music fest
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Oil rises, stocks fall as Trump's Iran deadline looms
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Graft trial of Spanish PM's ex-top aide begins
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French high-speed train slams into truck, killing TGV driver
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Kanye West offers to meet UK Jewish community amid music fest row
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Key infrastructure in Iran hit ahead of Trump deadline
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Sinner keeps run going by crushing Humbert in Monte Carlo
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Ex-footballer Barton denies assault near golf club
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Barca's Flick to defend 'emotional' teen Yamal against criticism
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Two children among 12 dead in fresh Ukraine, Russia strikes
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PSG wary of wounded Liverpool ahead of European showdown
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Ex-Arsenal midfielder Ramsey retires at 35
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Conte says Italian federation should consider him for coach's job
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Makhmudov hails heavyweight 'legend' Fury ahead of London clash
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Juve's Vlahovic suffers latest injury setback
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Australian cricket great David Warner charged with drink-driving: reports
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McKeown edges O'Callaghan, dominant Pallister wins 400m freestyle at Australian Open
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Oil, stocks rise as Trump's Iran deadline looms
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Gunman killed, 2 wounded in shootout outside Israel's Istanbul consulate
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US fund Pershing Square launches takeover bid for Universal Music
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Train driver killed, two critically injured as French TGV collides with truck
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Maguire signs one-year Man Utd contract extension
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New strikes in Tehran as deadline looms for Trump threat to infrastructure
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France's Sarkozy says 'innocent' at trial over Libya funding
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In Algeria, Saint Augustine's city anticipates Pope Leo's visit
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Veteran Lawes eyes England return after signing for Sale
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Nepal vows action against trekker rescue scam
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Oil prices rally, stocks edge up after Trump's latest Iran threat
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'Charlie's Angels' stars reunite for show's 50th anniversary
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Laughter, tears: historic day for astronaut Jenni Gibbons in Houston
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Former Wallaby 'Iceman' Foley to retire
Asian stocks track Wall St down as traders rethink tech bets
Asian stock markets fell Friday following another tech-led plunge on Wall Street as investors reassess their vast AI investments, while attention was also turning to US inflation data later in the day.
After last week's asset-wide volatility, a sense of calm has descended on trading floors over the past few days, helped by forecast-busting US jobs figures that eased worries about the world's top economy.
However, growing concern about the hundreds of billions spent on artificial intelligence infrastructure -- and the bundles more announced in the past few days -- have fanned speculation about when, if ever, companies will see a return.
The release of new tools this month that can perform crucial tasks in a range of fields, including legal, sales and marketing, has compounded those jitters -- hammering companies worried about competition.
Analysts said that has seen traders reassign investments within the AI area, with the main beneficiaries being chipmakers and other firms needed to build infrastructure.
"Developments in AI, particularly around the rollout of various AGI (artificial general intelligence) products, are only vaguely understood, which makes the ability to price future risk and certainty... something of a guess," said Pepperstone's Chris Weston.
Artificial general intelligence is the mooted next stage of AI, when computers could outperform humans across a wide variety of tasks.
Chris Beauchamp, chief market analyst at IG, added that "investors are rotating away from labour-intensive, fee-based business models that could face margin pressure from AI automation".
"This represents a significant shift from earlier AI enthusiasm, which focused primarily on technology enablers rather than potential losers," he added.
"The speed at which these concerns are spreading suggests markets are becoming more sophisticated in their analysis of AI's impact. Rather than a blanket assumption that AI benefits all companies, investors are now making sector-by-sector assessments of winners and losers."
Those concerns have weighed on US tech in recent months, with Apple, Amazon and Facebook parent Meta among those feeling the pinch, while upstream companies -- many based in Asia -- are enjoying healthy gains.
That saw Wall Street retreat Thursday, with the Nasdaq more than two percent down, while the S&P 500 shed more than one percent. Both indexes are down for the year so far. The Dow also dropped.
Asia was also largely in the red, with Hong Kong, Tokyo, Seoul, Shanghai, Sydney, Singapore, Wellington, Bangkok, Mumbai, Manila and Jakarta all posting losses.
However, chipmakers were the standout performers, enjoying big gains. Samsung was up more than one percent in Seoul, while Tokyo-listed Advantest and Tokyo Electron enjoyed similar gains. SMIC in Hong Kong was also well up.
Precious metals saw some of the heftiest selling this week, pushing gold below $4,900 an ounce and silver to $74, though the movements were not as wild as those earlier in the month that sent shockwaves through trading floors.
Attention turns to US inflation figures due later Friday, which come after a bumper jobs report Wednesday saw traders dial down their expectations for a Federal Reserve rate cut next month.
Most now see the next reduction in July owing to signs the economy is faring a little better than initially feared.
- Key figures at around 0700 GMT -
Tokyo - Nikkei 225: DOWN 1.2 percent at 56,941.97 (close)
Hong Kong - Hang Seng Index: DOWN 1.7 percent at 26,582.03
Shanghai - Composite: DOWN 1.3 percent at 4,082.07 (close)
Euro/dollar: DOWN at $1.1855 from $1.1876 on Thursday
Pound/dollar: DOWN at $1.3601 from $1.3620
Dollar/yen: UP at 153.38 yen from 152.75 yen
Euro/pound: UP at 87.17 pence from 87.16 pence
West Texas Intermediate: DOWN 0.2 percent at $62.74 per barrel
Brent North Sea Crude: DOWN 0.1 at $67.45 per barrel
New York - Dow: DOWN 1.3 percent at 49,451.98 (close)
London - FTSE 100: DOWN 0.7 percent at 10,402.44 (close)
H.Romero--AT