(Updates with index/price moves, macroeconomic data, and company/geopolitical news from the first paragraph.)
US equity indexes fell as crude oil prices jumped after President Donald Trump threatened to attack Oman while a deadline to reach a permanent peace deal with Iran expired.
The Nasdaq Composite fell 0.2% to 26,666.1, the S&P 500 declined 0.4% to 7,752.2, and the Dow Jones Industrial Average slid 0.5% to 53,488.6. All sectors except energy retreated, led by declines in communication services, consumer staples and consumer discretionary.
Monday marks 60 days since the US and Iran signed a memorandum of understanding that called for a wider peace deal to be negotiated within that timeframe, CBS NEWS reported. On the same day, Trump threatened to bomb Oman if the country "gets in the way" of US efforts to reopen the Strait of Hormuz and end the war with Iran, CBS cited Fox News.
Earlier, Iran's Foreign Ministry spokesman said Tehran had reached an agreement with Oman regarding future shipping routes in the strait, according to the CBS report. That being said, Iran has decided to shift its policy from defensive to "fully offensive" due to the deadlock in efforts to secure a permanent end to its war with the United States, a senior Iranian official told Reuters on Monday.
Brigadier General Yadollah Javani, head of the political bureau of the Islamic Revolutionary Guard Corps, told state television on Sunday night that his forces were ready to take whatever action is needed to defend the country, according to a report from Al Jazeera, a Middle Eastern broadcaster.
The front-month US West Texas Intermediate crude oil contract jumped 2.3% to $84.31 per barrel, and global benchmark North Sea Brent advanced 2.4% to $90.66 per barrel.
Meanwhile, Amazon-backed (AMZN) Anthropic informed potential investors that Q2 revenue increased at least 14-fold from a year earlier to over $11.5 billion, Bloomberg News reported Monday, citing documents.
Among companies with market capitalizations exceeding $200 billion each, eight of the top 10 by intraday returns were in the technology sector, according to data compiled by Finviz. Of those eight firms, six were related to the semiconductor industry. Sandisk (SNDK) led the pack, with a 7.4% gain.