Nvidia Tops $5 trillion in Total Value as Wall Street Waits for a Fed Announcement

A view of a Nvidia logo at their headquarters in Taipei, Taiwan May 31, 2023. (Reuters)
A view of a Nvidia logo at their headquarters in Taipei, Taiwan May 31, 2023. (Reuters)
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Nvidia Tops $5 trillion in Total Value as Wall Street Waits for a Fed Announcement

A view of a Nvidia logo at their headquarters in Taipei, Taiwan May 31, 2023. (Reuters)
A view of a Nvidia logo at their headquarters in Taipei, Taiwan May 31, 2023. (Reuters)

US stocks are rising toward more records on Wednesday as Wall Street waits to hear from the Federal Reserve in the afternoon about what it will do with interest rates.

The S&P 500 added 0.3% in morning trading. The Dow Jones Industrial Average was up 231 points, or 0.5%, as of 10:15 a.m. Eastern time, and the Nasdaq composite was 0.6% higher. All three indexes are coming off their latest all-time high.

The bond market was also relatively steady as the countdown ticked to the announcement from the Fed. The widespread expectation is that it will announce the second cut of the year to its main interest rate in hopes of helping the slowing job market. More important will be whether the Fed gives hints about another cut to rates in December and beyond. Wall Street is banking on it, according to Reuters.

In the meantime, the deluge continues of big US companies reporting how much profit they made during the summer. The pressure is on to deliver growth because that’s one way they can quiet criticism that their stock prices have shot too high in recent months.

Caterpillar rallied 12% after reporting stronger profit and revenue for the latest quarter than analysts expected. CEO Joe Creed said Caterpillar saw resilient demand, as customers bought more equipment, even with a “dynamic environment.”

Teradyne soared 14.6% after the company, which makes automated test equipment and advanced robotics systems, likewise reported a stronger profit than analysts expected. CEO Greg Smith credited strength related to artificial-intelligence applications and said “AI-related test demand remains robust.”

Nvidia, meanwhile, was the strongest force lifting the S&P 500 after rallying 4.4%. It became the first company valued at $5 trillion on Wall Street, just three months after the AI darling was the first to break through the $4 trillion barrier.

They helped offset a 42.6% plunge for Fiserv. The payments and financial technology company reported weaker profit for the latest quarter than analysts expected, slashed its profit forecast for the year and revamped its board of directors and leadership team. The stock is heading toward its worst day since it began trading in 1986.

Mondelez International fell 2.8%, even though it reported stronger results than analysts expected. The company, whose brands include Oreo cookies and Toblerone chocolate, has been dealing with record-high inflation for the cost of cocoa. It expects challenging conditions to continue in some markets, though it hopes that price increases are moderating for cocoa.

In stock markets abroad, indexes were mixed in Europe following a stronger finish in Asia.

Tokyo’s Nikkei 225 jumped 2.2% to another record. Seoul’s Kospi rose 1.8% to its own all-time high after President Donald Trump met with South Korea’s leader following his visit in Japan.

Stocks rose 0.7% in Shanghai ahead of a meeting between Trump and China’s leader, Xi Jinping. The world’s two largest economies have been locked in an escalating trade war, with Washington imposing high tariffs and tightened technology controls and China retaliating with curbs on rare earth shipments, one of its key sources of leverage.

In the bond market, the yield on the 10-year Treasury was holding at 3.99%, where it was late Tuesday.

It's been coming down from nearly 4.80% early this year, a notable move for the bond market, as expectations have climbed for several cuts to rates by the Federal Reserve.

But the Fed has also warned that it may have to halt the cuts if inflation accelerates beyond its still-high level, because lower rates can worsen inflation.

Making an already tough course for Fed officials more difficult is the US government’s shutdown. That has delayed important updates on the economy that would normally help guide the Fed’s decision-making process.



AI No Better Than Other Methods for Patients Seeking Medical Advice, Study Shows

AI (Artificial Intelligence) letters and a robot hand are placed on a computer motherboard in this illustration created on June 23, 2023. (Reuters)
AI (Artificial Intelligence) letters and a robot hand are placed on a computer motherboard in this illustration created on June 23, 2023. (Reuters)
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AI No Better Than Other Methods for Patients Seeking Medical Advice, Study Shows

AI (Artificial Intelligence) letters and a robot hand are placed on a computer motherboard in this illustration created on June 23, 2023. (Reuters)
AI (Artificial Intelligence) letters and a robot hand are placed on a computer motherboard in this illustration created on June 23, 2023. (Reuters)

Asking AI about medical symptoms does not help patients make better decisions about their health than other methods, such as a standard internet search, according to a new study published in Nature Medicine.

The authors said the study was important as people were increasingly turning to AI and chatbots for advice on their health, but without evidence that this was necessarily the best and safest approach.

Researchers led by the University of Oxford’s Internet Institute worked alongside a group of doctors to draw up 10 different medical scenarios, ranging from a common cold to a life-threatening hemorrhage causing bleeding on the brain.

When tested without human participants, three large-language models – Open AI's Chat GPT-4o, ‌Meta's Llama ‌3 and Cohere's Command R+ – identified the conditions in ‌94.9% ⁠of cases, ‌and chose the correct course of action, like calling an ambulance or going to the doctor, in an average of 56.3% of cases. The companies did not respond to requests for comment.

'HUGE GAP' BETWEEN AI'S POTENTIAL AND ACTUAL PERFORMANCE

The researchers then recruited 1,298 participants in Britain to either use AI, or their usual resources like an internet search, or their experience, or the National Health Service website to ⁠investigate the symptoms and decide their next step.

When the participants did this, relevant conditions were identified in ‌less than 34.5% of cases, and the right ‍course of action was given in ‍less than 44.2%, no better than the control group using more traditional ‍tools.

Adam Mahdi, co-author of the paper and associate professor at Oxford, said the study showed the “huge gap” between the potential of AI and the pitfalls when it was used by people.

“The knowledge may be in those bots; however, this knowledge doesn’t always translate when interacting with humans,” he said, meaning that more work was needed to identify why this was happening.

HUMANS OFTEN GIVING INCOMPLETE INFORMATION

The ⁠team studied around 30 of the interactions in detail, and concluded that often humans were providing incomplete or wrong information, but the LLMs were also sometimes generating misleading or incorrect responses.

For example, one patient reporting the symptoms of a subarachnoid hemorrhage – a life-threatening condition causing bleeding on the brain – was correctly told by AI to go to hospital after describing a stiff neck, light sensitivity and the "worst headache ever". The other described the same symptoms but a "terrible" headache, and was told to lie down in a darkened room.

The team now plans a similar study in different countries and languages, and over time, to test if that impacts AI’s performance.

The ‌study was supported by the data company Prolific, the German non-profit Dieter Schwarz Stiftung, and the UK and US governments.


Meta Criticizes EU Antitrust Move Against WhatsApp Block on AI Rivals

(FILES) This illustration photograph taken on December 1, 2025, shows the logo of WhatsApp displayed on a smartphone's screen, in Frankfurt am Main, western Germany. (Photo by Kirill KUDRYAVTSEV / AFP)
(FILES) This illustration photograph taken on December 1, 2025, shows the logo of WhatsApp displayed on a smartphone's screen, in Frankfurt am Main, western Germany. (Photo by Kirill KUDRYAVTSEV / AFP)
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Meta Criticizes EU Antitrust Move Against WhatsApp Block on AI Rivals

(FILES) This illustration photograph taken on December 1, 2025, shows the logo of WhatsApp displayed on a smartphone's screen, in Frankfurt am Main, western Germany. (Photo by Kirill KUDRYAVTSEV / AFP)
(FILES) This illustration photograph taken on December 1, 2025, shows the logo of WhatsApp displayed on a smartphone's screen, in Frankfurt am Main, western Germany. (Photo by Kirill KUDRYAVTSEV / AFP)

Meta Platforms on Monday criticized EU regulators after they charged the US tech giant with breaching antitrust rules and threaten to halt its block on ⁠AI rivals on its messaging service WhatsApp.

"The facts are that there is no reason for ⁠the EU to intervene in the WhatsApp Business API. There are many AI options and people can use them from app stores, operating systems, devices, websites, and ⁠industry partnerships," a Meta spokesperson said in an email.

"The Commission's logic incorrectly assumes the WhatsApp Business API is a key distribution channel for these chatbots."


Chinese Robot Makers Ready for Lunar New Year Entertainment Spotlight

A folk performer breathes fire during a performance ahead of Lunar New Year celebrations in a village in Huai'an, in China's eastern Jiangsu Province on February 7, 2026. (AFP)
A folk performer breathes fire during a performance ahead of Lunar New Year celebrations in a village in Huai'an, in China's eastern Jiangsu Province on February 7, 2026. (AFP)
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Chinese Robot Makers Ready for Lunar New Year Entertainment Spotlight

A folk performer breathes fire during a performance ahead of Lunar New Year celebrations in a village in Huai'an, in China's eastern Jiangsu Province on February 7, 2026. (AFP)
A folk performer breathes fire during a performance ahead of Lunar New Year celebrations in a village in Huai'an, in China's eastern Jiangsu Province on February 7, 2026. (AFP)

In China, humanoid robots are serving as Lunar New Year entertainment, with their manufacturers pitching their song-and-dance skills to the general public as well as potential customers, investors and government officials.

On Sunday, Shanghai-based robotics start-up Agibot live-streamed an almost hour-long variety show featuring its robots dancing, performing acrobatics and magic, lip-syncing ballads and performing in comedy sketches. Other Agibot humanoid robots waved from an audience section.

An estimated 1.4 million people watched on the Chinese streaming platform Douyin. Agibot, which called the promotional stunt "the world's first robot-powered gala," did not have an immediate estimate for total viewership.

The ‌show ran a ‌week ahead of China's annual Spring Festival gala ‌to ⁠be aired ‌by state television, an event that has become an important - if unlikely - venue for Chinese robot makers to show off their success.

A squad of 16 full-size humanoids from Unitree joined human dancers in performing at China Central Television's 2025 gala, drawing stunned accolades from millions of viewers.

Less than three weeks later, Unitree's founder was invited to a high-profile symposium chaired by Chinese President Xi Jinping. The Hangzhou-based robotics ⁠firm has since been preparing for a potential initial public offering.

This year's CCTV gala will include ‌participation by four humanoid robot startups, Unitree, Galbot, Noetix ‍and MagicLab, the companies and broadcaster ‍have said.

Agibot's gala employed over 200 robots. It was streamed on social ‍media platforms RedNote, Sina Weibo, TikTok and its Chinese version Douyin. Chinese-language television networks HTTV and iCiTi TV also broadcast the performance.

"When robots begin to understand Lunar New Year and begin to have a sense of humor, the human-computer interaction may come faster than we think," Ma Hongyun, a photographer and writer with 4.8 million followers on Weibo, said in a post.

Agibot, which says ⁠its humanoid robots are designed for a range of applications, including in education, entertainment and factories, plans to launch an initial public offering in Hong Kong, Reuters has reported.

State-run Securities Times said Agibot had opted out of the CCTV gala in order to focus spending on research and development. The company did not respond to a request for comment.

The company demonstrated two of its robots to Xi during a visit in April last year.

US billionaire Elon Musk, who has pivoted automaker Tesla toward a focus on artificial intelligence and the Optimus humanoid robot, has said the only competitive threat he faces in robotics is from Chinese firms.