Equities Slide as Iran Escalation and AI Spending Fears Grip Markets

Published on July 30, 2026

U.S. equities finished lower last week as investors weighed an escalating conflict with Iran against renewed concern over the scale of AI-related spending. The technology-heavy NASDAQ Composite was the worst performer, falling 2.1 per cent, while the S&P 500, an index of the largest U.S. companies, declined 0.6 per cent.