S&P 500 hits record as Pentagon declares Iran blockade open-ended
Washington's confirmation that the naval blockade of Iran will continue indefinitely removed the last vestige of resolution risk, and equities responded with fresh highs while oil held steady.
Defense Secretary Pete Hegseth told reporters in Panama on Thursday that the U.S. Navy can sustain its blockade of Iranian ports "indefinitely," rotating warships through the region as needed. Six months into the conflict, it was the clearest signal yet that Washington has abandoned any timeline for ending the war.
Wall Street treated the statement as a non-event. The S&P 500 closed at a record 7,798.99 after touching an intraday high above 7,800, while the Nasdaq Composite gained 0.81% to 26,803.03. Two of the three major U.S. benchmarks are on pace for a third consecutive winning week.
The market's calm reflects a repricing that has already taken place. By declaring the blockade permanent rather than provisional, Hegseth eliminated the uncertainty that had lingered over whether the conflict might escalate or resolve suddenly. Traders can now model a stable, if elevated, geopolitical backdrop.
Oil confirmed that reading. Brent crude for October delivery settled Thursday down more than 2% at $87.07 a barrel, recovering only marginally in early Asian trading Friday. West Texas Intermediate dipped to $81.25 before edging higher. Neither contract is pricing in supply disruption beyond the status quo.
AI capex outruns geopolitics
Capital that might once have sought havens is instead chasing the artificial-intelligence buildout. In South Korea, SK Hynix announced a $720 billion investment in what it calls the world's largest network of memory factories, betting that AI-driven demand for high-bandwidth memory is structural rather than cyclical. The company's market capitalisation has surged more than fivefold over the past year and now exceeds $1 trillion.
The Kospi itself crossed into a technical bull market Thursday, having rebounded more than 20% from its July 30 low after a leveraged-position rout briefly pushed it into bear territory. "Korea's equity market is basically synonymous with the AI hardware trade at this point," said Phillip Wool, head of research at Rayliant Global Advisors.
Growth divergence
The picture is less comfortable in the real economy. U.K. GDP expanded 0.4% in the second quarter after 0.6% in the first, keeping Britain on track to be the G7's fastest-growing economy for a second straight period. Deutsche Bank chief U.K. economist Sanjay Raja called the first-half annualised pace of 2% "scorching."
Yet the IMF warned in April that the Iran war would hurt British growth more than that of any other advanced economy, given the country's heavy dependence on imported oil and gas. Pump prices are already squeezing household incomes, and the indefinite blockade makes a rapid energy-cost relief unlikely.
Corporate AI shuffle
The week also brought a flurry of leadership and financing moves in the AI sector. Anthropic CFO Krishna Rao has begun early conversations with prospective investors ahead of a potential IPO, though discussions have not yet touched financials or valuation. The company filed confidentially in June after a May funding round pegged it at $965 billion.
OpenAI lost chief revenue officer Denise Dresser after just eight months, days after longtime executive Brad Lightcap announced his departure. Meanwhile, Meta's Mark Zuckerberg open-sourced the company's most powerful model, calling the concentration of AI in a few hands "inherently problematic."
For markets, the week's message was consistent: the war is the weather, and the trade is still tech.
