(Updates with latest market prices and developments.)
US stocks climbed intraday as oil prices fell after President Donald Trump renewed hopes for a diplomatic breakthrough in the Middle East conflict.
The Nasdaq Composite was up 2% at 25,877.1 after midday Monday, while the S&P 500 rose 1.3% to 7,586.4. The Dow Jones Industrial Average climbed 0.9% to 52,962.1. Among sectors, communication services paced the gainers, while energy led the laggards.
West Texas Intermediate crude oil tumbled 5.8% to $79.77 a barrel, while Brent dropped 4.8% to $83.70.
Over the weekend, Trump said negotiations with Iran would begin Monday, without revealing venue details, news outlets reported. In a social media post, Trump said that he called off a planned attack against Iran because the "perimeters of a deal has been agreed to."
"Hopes of a peace deal in the Middle East weighed on crude prices," D.A. Davidson said Monday in a note.
However, Iranian Foreign Ministry spokesperson Esmail Baghaei on Monday ruled out an immediate plan to negotiate with Washington, according to news reports. Tehran was in talks with Oman regarding the Strait of Hormuz, the world's most important chokepoint for crude flows, Baghaei reportedly said.
Treasury yields were lower intraday, with the 10-year rate down 5.5 basis points at 4.69% and the two-year rate falling 3.1 basis points to 4.26%.
In company news, Atkore (ATKR) jumped 28% intraday after the electrical products manufacturer announced a $3.8 billion deal to be acquired by Italian cable maker Prysmian.
Lantheus (LNTH) will become a private company following the completion of an up to $8 billion deal with Curium. Lantheus shares were up 2.7% intraday.
Integer (ITGR) agreed to be acquired and taken private by investment firm KKR (KKR) in an all-cash deal with an enterprise value of about $5.7 billion. Integer rose 2.7%, while KKR advanced 2.1%.
Marriott International (MAR) shares were the worst performer on the S&P 500, down 7.1%. The hotel giant reported second-quarter revenue below Wall Street's estimates amid headwinds related to the Middle East conflict, while it provided a downbeat earnings outlook for the ongoing three-month period.
Major companies including SpaceX (SPCX), Eli Lilly (LLY), Advanced Micro Devices (AMD), Caterpillar (CAT), Merck (MRK), McDonald's (MCD), Walt Disney (DIS), Shopify (SHOP) and Uber Technologies (UBER) are slated to release their quarterly results this week.
Palantir Technologies (PLTR) is scheduled to release its latest quarterly results after markets close Monday.
Spot gold fell 0.2% to $4,038.48 per troy ounce, while silver was up 0.1% at $57.83 per ounce.



