US Stocks Fall as Houthi Strikes Lift Oil to 6-Week High

Key Facts

U.S. stocks closed lower on Tuesday, September 8, after Houthi attacks on Saudi energy facilities heightened supply concerns and lifted oil prices. The S&P 500 fell 0.6%, the Dow Jones Industrial Average dropped 1.2%, and the Nasdaq Composite declined 0.3%.

Saudi authorities said the attacks ignited fires at oil facilities and utilities in the kingdom's south, temporarily suspending operations. The Saudi-led coalition reported 73 injuries, while the Houthis said they used ballistic missiles and drones to target economic and oil facilities.

Brent crude briefly reached $99.46 a barrel before settling at $97.92, up 0.9%. West Texas Intermediate gained 1.7% to $93.03, leaving both benchmarks at their highest closes in 6 weeks.

The 10-year U.S. Treasury yield rose to 4.80% on September 8 from 4.78% on September 4, Treasury Department data showed, a move of 2 basis points. The yield was near its highest level since November 2023, but the daily change did not amount to a surge or a record high.

Higher oil prices reach financial markets through interconnected channels: they can raise transportation and production costs, adding to inflation pressure, and can strengthen expectations that interest rates will remain elevated. Higher yields also raise the discount rate applied to future cash flows, typically weighing on equity valuations.

The key questions are how long the facilities remain offline and how much production or export capacity is affected. Reports confirmed temporary operating suspensions but did not quantify lost output, making it too early to measure the supply disruption. Operational updates and regional shipping conditions will remain central for markets.