Market Wrap · July 23, 2026
Oil Tops $100 on Iran Blockade Fears as Alphabet’s Capex Raise Reignites AI-Spending Worries
U.S. equities fell broadly on Thursday, July 23, in a session with two distinct causes rather than one. The S&P 500 (SPY) declined 1.23% to $738.18, the Nasdaq-100 (QQQ) fell 1.90% to $691.96, the Dow (DIA) slipped 1.00% to $516.26, and the Russell 2000 (IWM) declined 0.58%. The CBOE volatility-tracking VXX jumped 4.50%, while crude oil (USO) surged 5.93% on the day.
The first driver was geopolitical. President Trump announced a renewed blockade on Iranian ports, and separate reports described attacks on oil tankers near Saudi Arabia, sending Brent crude up roughly 7% to above $100 a barrel on fears of extended disruption to the Strait of Hormuz and Red Sea shipping routes; Goldman Sachs said prices could reach $120. Airlines were the most exposed sector: American Airlines fell 8.35% to $13.56, the steepest single-day decline among names AEA covers, as investors priced in higher jet-fuel costs against an already highly levered balance sheet.
The second driver was AI capex. Alphabet raised its 2026 capital-expenditure guidance to $195–205 billion, up from a prior $180–190 billion range and now roughly matching Amazon's existing $200 billion guide, even after reporting Q2 revenue growth of 24% and Google Cloud growth of 82% that beat estimates. The stock fell 7.13% to $317.69 anyway, as investors read the raise as confirmation that AI-infrastructure spending keeps climbing with no visible ceiling. The reaction spread through the rest of the complex: Amazon fell 4.57% to $233.66 on speculation it will raise its own capex guidance when it reports July 30, and Oracle — already down more than 50% from its prior peak following a recent credit downgrade — fell a further 4.61% to $120.04. Enterprise-software names bore the brunt of the capex-versus-software-budget read-through: Salesforce fell 3.72%, ServiceNow fell 3.69%, and Braze, a smaller customer-engagement software platform, was reported down 15% for the week.
Elsewhere on the tape
Micron was the session's clearest exception, rising 3.20% to $990.21, as investors read Alphabet's spending increase as a demand signal for the memory chips underneath the AI buildout rather than a warning about its own budget. SpaceX rose 2.59% to $118.24, a small bounce after a roughly 28% decline since the start of the month tied to its post-IPO insider-unlock schedule.