Nasdaq hits record closing high

The Nasdaq Composite jumped 2.3% to 27,122, a new record. The S&P 500 rose 1.5% to 7,764, while the Dow gained 0.7% to 52,048.

Oil prices slide on Iran hopes

West Texas Intermediate crude futures fell 4.5% to $95.78 per barrel, down nearly 10% from their September 15 peak near $106.

Trump signals openness to Iran talks

President Trump told Fox News he would probably meet with Iranian President Masoud Pezeshkian at this week's U.N. meeting in New York.

Trump-Xi meeting could move markets

President Trump is also scheduled to meet with Chinese President Xi Jinping in Washington this week. Wall Street is watching for news on tariff reductions and access to critical minerals.

Chipmakers surge on AI demand

Intel jumped 12.1%, AMD gained 10.0% and briefly topped a $1 trillion market cap, while Arm Holdings surged 17.2% to its highest close since mid-July.

Meta's Muse drives tech rally

Meta jumped 11.4% Monday after reports that its AI agent Muse could lift demand for chipmakers' processors. Analysts call it Meta's most consequential consumer product since Glasses in 2023.

“Muse is Meta's most consequential consumer product since the launch of Glasses in 2023, and an important revenue driver over time, in our view.”

Paramount-Warner Bros deal advances

Warner Bros. Discovery rose 10.8% after reports that Paramount Skydance spent the weekend discussing concessions with states suing to block the acquisition on antitrust grounds.