S&P 500 falls as Iranian attack on Kuwait airport threatens peace talks

Highlights

Iran’s attack on Kuwait International Airport injured at least 63 people and killed one person.
Kuwait said it engaged 13 missiles and 17 drones from Iran.
U.S. forces struck Iran’s Qeshm Island after attempted Iranian attacks.
The S&P 500 retreated as the flare-up threatened peace hopes.

Kuwait airport hit in Gulf escalation

According to Reuters, an Iranian drone and missile attack struck Kuwait International Airport early Wednesday, causing “severe damage” to the T1 terminal and forcing authorities to divert flights, Kuwait’s state news agency reported. Kuwait’s Health Ministry said at least 63 people were injured, including airport workers and passengers, while the Foreign Ministry said one person was killed.

Kuwait’s military said it engaged 13 missiles and 17 drones from Iran. U.S. Central Command separately said two Iranian missiles fired at Kuwait fell short or broke apart in flight, while three missiles aimed at Bahrain were intercepted by U.S. and Bahraini forces. CENTCOM also said U.S. forces struck sites on Iran’s Qeshm Island after attempted Iranian attacks.

Markets retreat from records

The escalation hit markets that had been trading near record levels on hopes that Washington and Tehran could reach a cease-fire framework. The S&P 500 fell 0.42% in early trading Wednesday, reflecting renewed investor caution after the Kuwait attack and fresh U.S.-Iran strikes.

The market reaction was driven less by the airport damage itself than by what it signals: the war is still capable of drawing in Gulf states that host U.S. forces and sit near critical energy routes. Any further attacks near Kuwait, Bahrain, or the Strait of Hormuz could lift oil prices, raise shipping risks, and complicate inflation expectations.

Talks continue under strain

Iranian officials have sent mixed signals on whether negotiations with the U.S. are continuing, while President Donald Trump has said talks remain ongoing. The Guardian reported that Tehran has indicated it could suspend talks in protest over Israel’s offensive in Lebanon, even as U.S. officials have said a deal remains within reach.

The diplomatic track is now tied to several fronts at once: U.S.-Iran strikes in the Gulf, attacks on Kuwait and Bahrain, and Israel’s operations against Hezbollah in Lebanon.

Gulf risk returns to the center of markets

The conflict is moving beyond direct U.S.-Iran exchanges and into civilian infrastructure in Gulf states. For investors, that raises the risk that a breakdown in diplomacy could hit energy markets, air travel, and broader risk appetite at the same time.

With U.S. equities near records before the attack, even a limited escalation was enough to unsettle markets. The next test is whether Washington and Tehran can keep talks alive while regional allies and proxy fronts continue trading fire.

Earlier, we reported that U.S. stocks edged higher as the AI rally met the Iran risk.

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