Dow Jones, S&P 500 & Nasdaq Fall Amid Iran Conflict & Oil Price Concerns

Wall Street closed sharply lower Thursday as escalating tensions in the Middle East continued to rattle investors, overshadowing even optimistic signals regarding potential de-escalation. The Dow Jones Industrial Average, S&P 500, and Nasdaq Composite all deepened their declines, finishing the session with losses of 1.61% to 47,954.74, 0.56% to 6,830.71, and 0.26% to 22,748.99 respectively. The Dow’s slide effectively erased its year-to-date gains, marking a volatile start to 2026.

The market’s downward trajectory followed a day of fluctuating sentiment. While initial optimism stemmed from comments by former President Donald Trump suggesting a favorable position in the region and promises of security for shipping lanes through the Strait of Hormuz, renewed concerns about disruptions to oil supply quickly took hold. The conflict between the US-Israel coalition and Iran has now entered its sixth day, with no immediate resolution in sight.

Oil Prices Surge, Fueling Inflation Fears

Crude oil prices experienced a significant jump, reaching their highest levels since July 2024. West Texas Intermediate (WTI) futures settled up more than 8% at $81.01 a barrel, while international benchmark Brent crude climbed nearly 5% to $85.41 per barrel. These increases are directly linked to fears of supply disruptions through the Strait of Hormuz, a critical waterway for global oil transport, handling roughly 20% of the world’s daily oil consumption. According to CNN, zero oil tankers transited the strait on Wednesday, highlighting the severity of the situation. CNN

The surge in oil prices is not only impacting energy markets but also raising concerns about potential inflationary pressures. Higher energy costs could complicate the Federal Reserve’s monetary policy decisions, potentially delaying or reducing anticipated interest rate cuts. Economists at Bank of America have pointed out that tariffs have already contributed approximately 50 basis points to underlying PCE inflation, but that the more pressing issue is persistent inflation in the services sector, warranting caution from the Fed. Yahoo Finance

Impact Across Sectors and Markets

The market sell-off was broad-based, though some sectors were more heavily impacted than others. Boeing, Caterpillar, and other companies sensitive to global economic slowdowns led the Dow’s decline. The energy sector, unsurprisingly, saw some gains alongside rising oil prices.

Beyond equities, the impact extended to other markets. US crude oil jumped 8.5%, marking its largest single-day gain since May 2020. US natural gas and diesel futures also rose, increasing by nearly 3% and 7% respectively. The national average gasoline price reached $3.25 per gallon on Thursday, a 27-cent increase from the previous week, according to AAA data. Diesel prices also climbed, reaching $4.16 per gallon, the highest level since 2023.

Company-Specific Moves and Investor Sentiment

Despite the overall market downturn, some companies experienced positive movement. Atlassian Rg-A rose 7.37% to $82.47, The Trade Desk Rg-A surged 18.36% to $29.79, and Salesforce gained 4.29% to $201.36. Atlassian’s gains followed a positive presentation at the Morgan Stanley Technology, Media & Telecom Conference, where the company highlighted its strategic shift towards enterprise clients and the potential of artificial intelligence. The Trade Desk benefited from news of a substantial stock purchase by CEO Jeffrey Terry Green and ongoing discussions with OpenAI regarding advertising opportunities on its AI platform. Salesforce’s positive performance was attributed to investor confidence in its AI strategy, particularly the rapid growth of its Agentforce platform.

Conversely, Lam Research fell 3.73% to $214.68 after CFO Douglas R. Bettinger sold a significant number of shares. CIENA declined 12.94% to $299.08 despite reporting record first-quarter fiscal 2026 revenue and strong growth, as investors expressed concerns about supply chain constraints and potential market saturation in the AI-driven connectivity space. Caterpillar dropped 3.56% to $705.90, reflecting broader market anxieties related to the geopolitical environment.

Economic Data and Federal Reserve Outlook

Thursday also brought a mixed bag of economic data. The January import price index rose 0.2% (versus an expected 0.3%), while the fourth-quarter nonfarm productivity increased by 2.8% (exceeding expectations of 1.9%). The January export price index climbed 0.6%, surpassing the anticipated 0.3%. A 4-week Treasury bill auction yielded 3.640%, and an 8-week Treasury note auction yielded 3.630%.

Market participants are currently pricing in a 97.3% probability that the Federal Reserve will hold interest rates steady at the 3.5% to 3.75% range at its March meeting. Expectations remain for 25 to 50 basis point rate cuts by the end of the year, but the evolving geopolitical situation and inflationary pressures could influence the Fed’s decisions.

What’s Next: Monitoring Geopolitical Developments and Economic Indicators

The immediate future of the market hinges on the trajectory of the conflict in the Middle East. Investors will be closely monitoring any developments that could de-escalate tensions or further disrupt oil supplies. The monthly jobs report, scheduled for release on Friday, will provide another crucial data point on the health of the US labor market. Earnings season continues, with Costco and Marvell Technology releasing results after the close on Thursday, offering further insights into corporate performance. CNBC

Looking ahead, the market will also be paying attention to upcoming Federal Reserve meetings and any signals regarding the timing and magnitude of potential interest rate cuts. The ongoing volatility underscores the importance of a cautious approach to investment, particularly in the current geopolitical climate.