Stock market today: Dow, S&P 500, Nasdaq futures waver ahead of retail earnings - Yahoo Finance

US stocks declined on Monday, August 17, 2026, as the Dow Jones Industrial Average and S&P 500 each fell 0.5%, while the tech-heavy Nasdaq Composite dropped 0.3%.
The S&P 500 closed at 7,745.06, down 40.70 points, after posting its third consecutive weekly gain the prior week.
Rising oil prices weighed on markets amid renewed fears of escalation in the US-Iran war following the expiration of a memorandum of understanding between the two nations.
Brent crude futures reached $90 per barrel after President Trump said he did not expect the war to end soon and threatened to bomb Oman if it interferes with the Strait of Hormuz.
Treasury yields climbed on concerns about growing national debt, with the 30-year yield rising 5 basis points to 5.31%, its highest level since June 2007.
Investors are awaiting quarterly results this week from major retailers including Walmart, Target, Lowe's, and Home Depot for insights into consumer health during back-to-school shopping, along with the FOMC meeting minutes due Wednesday.