TodayMonday, August 31, 2026

U.S.-Iran Strikes Send Oil Surging As Wall Street Closes Out A Rocky But Profitable August

August ends the way it largely began, with geopolitical tension in the Middle East rattling oil markets and pulling major stock indexes into the red.

The Dow Jones Industrial Average (^DJI) fell 0.56%, roughly 315 points, as of midday trading, while the S&P 500 (^GSPC) slipped 0.43% and the Nasdaq Composite (^IXIC) dropped 0.34%.

Twenty-three of the Dow’s 30 components declined on Monday, reflecting broad if measured selling pressure across most sectors.

The immediate catalyst was a fresh exchange of military strikes between the U.S. and Iran over the weekend, the first acknowledged action on Iranian soil since late July.

U.S. forces struck two Iranian rocket launchers on Larak Island in the Strait of Hormuz on Sunday, and Iran responded by firing at two American bases in Jordan.

Brent crude prices jumped roughly 2.8% back above $90 a barrel, and the United States Oil Fund (USO) rose 2.5% in response to the escalating tension.

Energy stocks were the lone bright spot across sectors, gaining 0.9% as more than two-thirds of all energy stocks posted gains on the session.

Goldman Sachs (GS) and Caterpillar (CAT) were the heaviest drags on the Dow, each falling around 1%, while Alphabet (GOOG)(GOOGL) led declines on the S&P 500 and Nasdaq with a 2.3% drop.

Tesla (TSLA) bucked the trend in a significant way, surging 5.2% after the company trimmed the entry-level Model 3 price in Hong Kong and Macau by approximately 8.5%.

Investors interpreted the price cut as Tesla defending demand in a competitive market rather than a sign of weakness, making it the biggest positive contributor to both the S&P 500 and the Nasdaq.

Despite Monday’s losses, August ultimately closed in positive territory across all three major indexes, capping a turbulent but rewarding month for investors.

The Dow rose 1.4% for August, marking its fifth consecutive monthly gain, while the S&P 500 finished up 2.4% and the Nasdaq Composite gained 3.5% for the month.

Both the S&P 500 and the Dow hit record highs during August, with the Nasdaq Composite falling just short of its record set in early June.

The market achieved these gains even as a six-month war kept oil prices elevated, inflation pushed Treasury yields sharply higher, and a new Fed chair expressed open concern about prices.

Earnings growth continued to underpin investor confidence, helping markets climb despite persistent macroeconomic and geopolitical headwinds throughout the month.

The next major test arrives quickly, with Friday’s August jobs report expected to shape expectations ahead of the Federal Reserve’s September 16 rate decision.

Raul Martinez

Raul Martinez covers crypto, AI, tech and iGaming news for iBusiness.News. He is especially interested in generative AI, robotics, and blockchain startups.