Stock market today: Dow, S&P 500, Nasdaq fall as oil prices rise, US-Canada trade war escalates - Yahoo Finance

US stocks fell Tuesday, September 8, 2026, as the Dow Jones Industrial Average dropped about 1.1% (roughly 405 points to close at 52,380.66), the S&P 500 slipped around 0.5%, and the Nasdaq Composite declined about 0.3%.
Rising oil prices weighed on markets after Iran said it was close to a deal with Oman to manage traffic through the Strait of Hormuz, with Brent crude nearing $100 per barrel and WTI trading above $93.
Continued Middle East conflict revived inflation fears and speculation that the Federal Reserve could raise interest rates at its meeting this month, especially following Friday's strong August jobs report.
Investors are awaiting a fresh Consumer Price Index reading due Friday, which will signal whether inflation is trending toward the Fed's 2% target or remaining persistent.
Trade tensions escalated as Canada imposed tariffs of up to 50% on some US goods, affecting roughly $20 billion in products including dairy, steel, and wood, in a like-for-like retaliation against the US.
On the earnings front, Oracle is the week's highlight, with GameStop reporting Tuesday; some semiconductor stocks helped offset broader market weakness during the holiday-shortened week.