U.S. stocks had a rocky day of trading, swinging from highs and lows like the quality of Game of Thrones across its eight seasons.

At its lowest during the session, the S&P 500 fell as much as 1.5%, but picked up and traded positive for most of the day after U.S. Trade Representative Jamieson Greer gave an indication that China’s next trade move could influence the implementation of President Donald Trump’s tariffs.

The optimism in markets fizzled, however, when Trump said he was considering “terminating business with China having to do with Cooking Oil” and other forms of “retribution” because the country has stopped buying U.S. soybeans since May. Investors seemed to take that threat seriously, sending the S&P 500 down 0.2% for the day.

Developments elsewhere, however, were more positive. U.S. Federal Reserve Chair Jerome Powell suggested that the central bank might stop tightening monetary policy with regard to its bond holdings. Furthermore, big banks — bellwethers for economic activity — such as JPMorgan Chase, Citi and Goldman Sachs, beat earnings expectations, suggesting that fundamentals are still sound.

And while Oracle’s turn to AMD’s artificial intelligence chips — hence diversifying from Nvidia graphics processing units — might not be pleasant news for Jensen Huang, spreading out concentration risk could be a positive outcome for investors banking on AI to continue the market rally.

The question, then, is whether Trump will raze the AI-supported market with his tariffs — or if the Magnificent Seven kingdom will stand.

Trump threatens China with cooking oil embargo. That’s in response to Beijing halting its purchases of U.S. soybeans since May. Whether 100% tariffs on China come into effect depends on how the country reacts, U.S. Trade Representative Jamieson Greer said Tuesday.

Powell suggests the Fed might stop tightening policy. The U.S. central bank could cease reducing the size of its bond holdings, which would allow liquidity to be maintained in the economy, Powell said in a prepared speech Tuesday.

Oracle to deploy AMD artificial intelligence chips. Oracle will use 50,000 of AMD’s Instinct MI450 chips beginning in the second half of 2026, in a sign that companies are turning to Nvidia’s competitors for their processing needs.

U.S. stocks were mixed. On Tuesday, the S&P 500 and Nasdaq Composite fell but recovered from session lows. The Dow Jones Industrial Average, however, closed in the green. The pan-European Stoxx 600 index dropped 0.37% and touched two-week lows in the session.

[PRO] An attractive European fixed income play. This niche area has “real value,” according to BlackRock’s James Turner, co-head of global fixed income in EMEA. In addition, it offers protection against the risk of interest rate fluctuations.

Trump says the war is over, but the path to peace in the Middle East is fragile

While most agree that U.S. President Donald Trump deserves credit for helping to bring an immediate end to the devastating war between Israel and Hamas, achieving a long-lasting peace is a different matter. Analysts note that detail is scant in Trump’s 20-point peace plan, meaning there are a number of grey areas and room for discontent and disagreement in the near and long-term.

This is particularly salient when it comes to both immediate matters in the peace proposal, such as the demilitarization of Hamas and withdrawal of Israeli forces from Gazan territory it currently controls, to perhaps the biggest bone of contention: a two-state solution for the Israelis and Palestinians.

— Holly Ellyatt

Meta removed a Facebook group page on Tuesday that was allegedly used to “dox and target” U.S. Immigration and Customs Enforcement agents in Chicago after being contacted by the Department of Justice.

Attorney General Pam Bondi revealed the Facebook takedown in an X post, and said that the DOJ “will continue engaging tech companies to eliminate platforms where radicals can incite imminent violence against federal law enforcement.”

A Meta spokesperson confirmed that the tech giant removed the Facebook group page, but declined to comment about its size and the specific details that warranted its removal.

“This Group was removed for violating our policies against coordinated harm,” the Meta spokesperson said in a statement that also referred to the company’s policies pertaining to “Coordinating Harm and Promoting Crime.”

Meta’s removal of the Facebook group page follows similar moves from rivals like Apple and Google, which have recently removed apps that could be used to anonymously report sightings of ICE agents and other law enforcement.

Apple took down the ICEBlock app nearly two weeks ago following pressure from Bondi, who said at the time that the app was “designed to put ICE agents at risk just for doing their jobs.”

Apple said at the time in a statement that it removed the ICEBlock app based on information provided by law enforcement about alleged “safety risks.”

Google, which did not maintain the ICEBlock app on its app store, said in October that while the DOJ never contacted the search giant, the company removed “similar apps for violations of our policies.”

ICEBlock creator Joshua Aaron criticized both Apple and the White House in an interview with CNBC, and compared his app to others like Waze, which let drivers report when they see law enforcement officers in order to avoid getting ticketed for speeding.

“This is about our fundamental constitutional rights in this country being stripped away by this administration, and the powers that be who are capitulating to their requests,” Aaron said.

WATCH: Roth Capital Partners’ Rohit Kularni on OpenAI’s Sora.

OpenAI on Tuesday announced a council of eight experts who will advise the company and provide insight into how artificial intelligence could affect users’ mental health, emotions and motivation. 

The group, which is called the Expert Council on Well-Being and AI, will initially guide OpenAI’s work on its chatbot ChatGPT and its short-form video app Sora, the company said. Through check-ins and recurring meetings, OpenAI said the council will help it define what healthy AI interactions look like.

OpenAI has been expanding its safety controls in recent months as the company has faced mounting scrutiny over how it protects users, particularly minors.

In September, the Federal Trade Commission launched an inquiry into several tech companies, including OpenAI, over how chatbots like ChatGPT could negatively affect children and teenagers. OpenAI is also embroiled in a wrongful death lawsuit from a family who blames ChatGPT for their teenage son’s death by suicide.

The company is building an age prediction system that will automatically apply teen-appropriate settings for users under 18, and it launched a series of parental controls late last month. Parents can now get notified if their child is showing signs of acute distress, for instance.

OpenAI said it began informally consulting with members of its new expert council as it was building its parental controls. The company brought on additional experts in psychiatry. psychology and human-computer interaction as it formalized the council, which officially launched with an in-person session last week.

In addition to its expert council, OpenAI said it is also working with researchers and mental health clinicians within the Global Physician Network who will help test ChatGPT and establish company policies. 

Here are the members of OpenAI’s Expert Council on Well-Being and AI:

• Andrew Przybylski, a professor of human behavior and technology at the University of Oxford. 
• David Bickham, a research scientist in the Digital Wellness Lab at Boston Children’s Hospital. 
• David Mohr, the director of Northwestern University’s Center for Behavioral Intervention Technologies.
• Mathilde Cerioli, the chief scientist at Everyone.AI, a nonprofit that explores the risks and benefits of AI for children.
• Munmun De Choudhury, a professor at Georgia Tech’s School of Interactive Computing. 
• Dr. Robert Ross, a pediatrician by training and the former CEO of The California Endowment, a nonprofit that aims to expand access to affordable health care. 
• Dr. Sara Johansen, a clinical assistant professor at Stanford University who founded its Digital Mental Health Clinic.
• Tracy Dennis-Tiwary, a professor of psychology at Hunter College.

If you are having suicidal thoughts or are in distress, contact the Suicide & Crisis Lifeline at 988 for support and assistance from a trained counselor

WATCH: FTC launches inquiry into AI chatbots acting as companions