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Mexico probing if US violated sovereignty in 2024 drug lord capture
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Nigeria's Dangote confirms Lamu, Kenya for east Africa mega-refinery
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Zverev reaches first Wimbledon quarter-final
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Study points to likely route for Hannibal's legendary Alpine crossing
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Nordic joy as Traeen takes yellow, Pedersen wins Tour de France 4th stage
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Australia's Mooney back at No 1 in batting rankings after World Cup heroics
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Electric Our Lady land: guitar made from burned Notre Dame wood
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Traeen takes yellow, Pedersen wins Tour de France 4th stage
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Tanker attacks send oil higher, stocks hit by AI jitters
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UK hard-right leader Farage resigns as MP to force snap vote in finances row
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IOC shuffle 2030 Winter Games events and promise gender parity
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Harry Kane calls for calm after England's World Cup epic against Mexico
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Macron says Syria must not be destabilised after bombs wound 18
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Beleaguered Prince Harry loses lawsuit against UK tabloid
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France's Le Pen to announce if running for president with ankle tag
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Sinner eyes Djokovic showdown after moving into Wimbledon semis
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France get ready to face 'lost treasure' Bouaddi in Morocco World Cup clash
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Sinner conquers heat, sets up potential Djokovic clash at Wimbledon
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Trump berates NATO, praises Erdogan as summit starts
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'Veteran' Gauff completes Slam semi-final set with Wimbledon fightback
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Blazy's Chanel fairy tale continues with whimsical couture show
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UK hard-right leader resigns as MP to force snap vote in finances row
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Stocks hit by AI concerns as oil rises on tanker attack
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US trade gap in May widens to biggest in over a year
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Prince Harry, Elton John lose case against UK tabloid
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France's Le Pen cleared to run for president but with ankle tag
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Serena wants to play again before US Open, says coach
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This year's El Nino likely to become record-breaker: top expert
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Sign of the times: Harry Styles sets record with 12-night Wembley run
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Kenya, Tanzania shut down protest anniversaries
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France's Le Pen arrives in court for key ruling in race for president
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Women pushed back to Afghanistan pin hopes on rare private sector jobs
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Stocks mixed tracking AI concerns, as oil rises on tanker attack
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Bomb attacks wound 18 in Damascus as Macron visits
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Paris FC confirm Rosenior taking over as coach
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Cuba slowly gets power back after third nationwide blackout in six months
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Thousands without power in US Pacific islands after super typhoon
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NATO summit showcases arms deals in push to win over Trump
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Prince Harry to discover outcome of UK tabloids case
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Seoul dives on tough day for Asia as Samsung fails to ease tech woes
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Messi v Salah in World Cup last-16 showdown
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Democrats push key US Senate candidate to quit over sex assault claim
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Death toll from China storms rises to 15, hundreds injured
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As South Korean Buddhism woos Gen Z, how hip is too hip?
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Belgium boosted by Balogun furore: Tielemans
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'Disappointed' Pochettino says Balogun row no excuse for US World Cup exit
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Samsung expects 1,800% operating profit leap on AI boom
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Seoul dives on mixed day in Asia as Samsung fails to ease tech woes
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Belgium thrash USA to end World Cup dream and set up Spain showdown
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Belgium dump US out of World Cup after Balogun row
Stocks retreat as tech bubble fears grow
Technology companies led sell-offs on stock markets Wednesday, as investors grow increasingly worried about an AI bubble following a rally that has propelled valuations to record highs.
Sentiment was hit also by the US government shutdown, which Wednesday became the longest ever, topping the 35-day record set during President Donald Trump's first term in office, as his administration warned of holiday air travel chaos and threatened Americans' benefits in a bid to force a resolution.
A total 1.4 million federal workers, from air traffic controllers to park wardens, are on enforced leave or working without pay.
"As well as valuation fears, the US is grappling with a nation in shutdown," noted Emma Wall, chief investment strategist at Hargreaves Lansdown.
"The US is nearing peak travel period, with Thanksgiving later this month. Listed airlines are likely to see share prices fall should flights be cancelled en masse."
After an uncertain start to the week, Wall Street tumbled Tuesday, with the tech-rich Nasdaq closing down more than two percent and the S&P 500 off more than one percent.
Asia took up the baton, with Seoul and Tokyo the hardest hit Wednesday. However many markets in the region recovered as the day wore on and pared many of the losses.
Losses among Europe's main indices were less severe approaching the half-way stage, while the dollar steadied.
Oil prices rose and bitcoin recovered slightly after sharp losses Tuesday that sent the leading cryptocurrency briefly under $100,000.
Global stock markets have soared this year as an eye-watering flood of cash piled into companies linked to artificial intelligence, including US titans Nvidia, Amazon and Apple as well as Asian firms Samsung and Alibaba.
But despite recent strong earnings, traders have started questioning the wisdom of chasing ever-higher prices, with cash mostly funnelled into a handful of big-name companies.
The gains have also been helped by an easing of US trade tensions and expectations that the Federal Reserve will continue to cut interest rates into the new year.
However, last week's warning from the US central bank that another reduction in December was not a foregone conclusion jolted sentiment.
With the latest earnings seasons nearing an end, German carmaker BMW on Wednesday reported rising third-quarter profits despite challenges from slowing Chinese sales and tariffs.
Its share price was up 0.6 percent following the update.
- Key figures at around 1100 GMT -
London - FTSE 100: DOWN 0.1 percent at 9,705.54 points
Paris - CAC 40: DOWN 0.3 percent at 8,040.73
Frankfurt - DAX: DOWN 0.8 percent at 23,756.98
Tokyo - Nikkei 225: DOWN 2.5 percent at 50,212.27 (close)
Hong Kong - Hang Seng Index: DOWN 0.1 percent at 25,935.41 (close)
Shanghai - Composite: UP 0.2 percent at 3,969.25 (close)
New York - Dow: DOWN 0.5 percent at 47,085.24 (close)
Euro/dollar: UP at $1.1483 from $1.1479 on Tuesday
Pound/dollar: UP at $1.3025 from $1.3019
Dollar/yen: UP at 153.70 yen from 153.66 yen
Euro/pound: DOWN at 88.14 pence from 88.17 pence
Brent North Sea Crude: UP 0.7 percent at $64.90 per barrel
West Texas Intermediate: UP 0.8 percent at $61.03 per barrel
burs-bcp/ajb/yad
M.Ouellet--BTB