A screen shows the Korea Composite Stock Price Index (KOSPI) in the foreign exchange dealing room at the Hana Bank headquarters in Seoul, South Korea, Monday, Sept. 21, 2026. (AP Photo/Ahn Young-joon)

Traders work on the floor at the New York Stock Exchange in New York, Wednesday, Sept. 16, 2026. (AP Photo/Seth Wenig)

Currency traders work near a screen showing the Korea Composite Stock Price Index (KOSPI) in the foreign exchange dealing room at the Hana Bank headquarters in Seoul, South Korea, Monday, Sept. 21, 2026. (AP Photo/Ahn Young-joon)

Currency traders work in the foreign exchange dealing room at the Hana Bank headquarters in Seoul, South Korea, Monday, Sept. 21, 2026. (AP Photo/Ahn Young-joon)

Concert goers arrive to Lincoln Financial Field before an Ed Sheeran concert in Philadelphia, Saturday, Sept. 19, 2026. (AP Photo/Allie Ippolito)

Concert goers arrive to Lincoln Financial Field before an Ed Sheeran concert in Philadelphia, Saturday, Sept. 19, 2026. (AP Photo/Allie Ippolito)

FILE - First row, from left, France's Minister for Economy, Finance, Industry and Digital Security Bruno Le Maire; German Economy and Climate Minister Robert Habeck, European Commission President Ursula von der Leyen, U.S. Vice President Kamala Harris, British Prime Minister Rishi Sunak, Italian Prime Minister Giorgia Meloni, U.N. Secretary General Antonio Guterres and Australian Deputy Prime Minister and Minister of Defense Richard Marles, middle and back row, from left, Google's James Manyika, President of the Carnegie Endowment for International Peace Tino Cuellar, AI Now Institute's Amba Kak, Mistral AI CEO Arthur Mensch, CEO of Amazon Web Services Adam Selipsky, Meta's Nick Clegg, Quebec AI Institute's Yoshua Bengio, Anthropic's Dario Amodei, OpenAI's Sam Altman, Microsoft's Brad Smith, Inflection AI Co-Founder Mustafa Suleyman, former acting director of the White House Office of Science and Technology Policy Alondra Nelson, Google DeepMind's Demis Hassabis, Schmidt Futures Founder Eric Schmidt, Chair of UK Frontier AI Taskforce Ian Hogarth and Inflection AI's Reid Hoffman pose for a group photo on the second day of the UK Artificial Intelligence Safety Summit at Bletchley Park, in Bletchley, England, on Nov. 2, 2023. (Toby Melville/Pool Photo via AP, File)

Screens display a news conference held by Federal Reserve chairman Kevin Warsh on the floor of the New York Stock Exchange in New York, Wednesday, Sept. 16, 2026. (AP Photo/Seth Wenig)