Stock Market Update: U.S.-Iran War Impact on Wall Street (2026)

The tension between the U.S. and Iran has traders on edge, and stock futures are feeling the heat. With the potential for a prolonged war, the market is in a delicate balance.

A volatile session for U.S. equities left stock futures largely unchanged on Tuesday night. Despite the Dow Jones Industrial Average and S&P 500 closing in the red, there were signs of resilience. The Nasdaq 100 futures even managed a small gain of 0.07%.

Each sector of the S&P 500 closed lower, with materials taking the biggest hit, dropping 2.7%. Investors were concerned about the impact of rising oil prices on the U.S. economy and future monetary policy.

But here's where it gets controversial...

President Trump's announcement of providing risk insurance to maritime trade through the Persian Gulf has divided opinions. While some see it as a move to ease tensions and get tankers moving, others argue it could escalate the situation.

Brent and West Texas Intermediate crude futures both settled higher, but ended the day off their session highs.

James McCann, senior economist at Edward Jones, suggests that longer-term investors might find opportunities in the market, especially if energy prices stabilize.

As we head into Wednesday, traders are keeping a close eye on the ADP private payrolls report and earnings from key companies like Abercrombie & Fitch, Broadcom, and Okta.

And this is the part most people miss...

Goldman Sachs predicts that the U.S.-Iran war could push inflation substantially higher if it drags on. In a worst-case scenario, headline CPI could reach 3% in May and remain elevated.

However, UBS Global Wealth Management maintains a favorable outlook for stocks, expecting only minimal disruption to global energy supplies. They believe President Trump's comments reinforce this view, and their year-end S&P 500 price target remains at 7,700.

In after-hours trading, CrowdStrike Holdings, Ross Stores, and Box saw post-earnings moves. CrowdStrike slipped despite beating expectations, while Box and Ross Stores advanced on strong results. GitLab, however, dipped after its fiscal 2027 guidance fell short.

The market is watching and waiting. Will the U.S.-Iran situation escalate, or will tensions ease? Only time will tell.

What's your take on the current market situation? Share your thoughts in the comments!

Stock Market Update: U.S.-Iran War Impact on Wall Street (2026)

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