Week in Review: CPI Relief, IBM Implosion, and the AI Compute Divide

Week in Review

The week opened with oil surging more than 4% on live US-Iran military exchanges as the Hormuz blockade risk was repriced across energy markets. Despite the geopolitical noise at the open, equities held their footing on Monday — the S&P 500 added 0.4% to 7,575 as investors weighed the Iran risk premium against confirmations of robust AI demand. TSMC's 68% June revenue surge, reported in the prior week, kept the AI infrastructure narrative intact as the book's primary growth anchor.

Tuesday brought the week's clearest structural signal: META announced a $50 billion Louisiana data centre commitment — the largest single-state AI infrastructure pledge on record — while JPMorgan set up for what would prove to be record trading and capital markets revenues from Iran-war volatility and the SpaceX IPO pipeline. Geopolitical pressure escalated further as the Trump administration reinstated the Iran blockade and proposed a 20% Hormuz transit toll, sending the energy sector sharply higher. Then Wednesday delivered the macro pivot that markets had been waiting for: June CPI came in at 3.5% year-over-year, below consensus, with the monthly print falling 0.4% from May. The immediate consequence was a collapse in July Fed hike probability from 42% to 17%, which relieved multiple compression across growth equities and set the stage for a single-session AI bifurcation trade. NVDA surged 4.06% as IBM cratered 25% on an earnings warning — the market had sorted AI-native compute infrastructure from legacy enterprise IT in one decisive move.

The constructive tone extended into Thursday on Federal Reserve Chair Warsh's Senate testimony, which further reduced near-term rate-hike probability and aligned with Hassett's commentary ruling out a July hike. Warsh's language around the rate path and Trump's public opposition to New York's AI data centre moratorium reinforced the federal tailwind underpinning the AI infrastructure build. But the week ended on a sharply different note. Friday delivered a broad equity selloff — the S&P 500 fell 1%, the Nasdaq shed 1.5%, and the Dow retreated more than 400 points — as concerns mounted that AI hyperscalers might scale back infrastructure investment. Dallas Fed President Logan reintroduced hawkish friction, calling for modestly higher rates in a view that contradicted the Warsh-Hassett framework. By the weekend, the US-Iran interim peace deal had collapsed entirely: two US service members were killed in Jordan, Iran threatened direct retaliation, and the VIX had risen to 18.77 — not a regime break, but a measurable compression in risk appetite entering the following week.

For the week as a whole, the S&P 500 and Nasdaq closed below their 30-day moving averages. Energy was the standout sector leader, driven by Iran-driven oil demand and war-risk premiums. Technology was the laggard, particularly semiconductors, as hyperscaler capex uncertainty overlaid the AI rotation. The Dow Jones Transportation Average was the only major index to finish the week with a gain, up 2.46%, reflecting the divergent impact of the geopolitical environment across sectors. Healthcare maintained its underlying strength, with UnitedHealth's Q2 beat on Thursday confirming that the GLP-1 and managed-care earnings cycle remains intact.

Next Week Outlook

The week of July 20–26 opens with the geopolitical risk premium fully repriced. The US-Iran situation is the primary tail risk: any escalation that materially disrupts Hormuz shipping lanes would reprice energy, compress consumer sentiment, and introduce the inflationary pressure that the June CPI print had momentarily removed. The base case remains a deterrent posture rather than a full Hormuz closure, but the weekend events have shifted the probability distribution toward higher volatility at the open on Monday.

The dominant event of the week is the start of mega-cap tech earnings season. Tesla and Alphabet both report on July 22, with Intel on July 23. These results will function as early reads on two critical debates currently driving equity leadership: whether AI infrastructure capex is decelerating at the hyperscaler layer (the concern that triggered Friday's selloff) and whether AI-native revenue — advertising, autonomous, cloud — is compounding at the rate embedded in current multiples. Alphabet's guidance on AI search monetisation and data centre spending will be treated as a bellwether for the entire AI infrastructure thesis. A beat and raise from Alphabet would likely relieve the hyperscaler capex anxiety that weighed on chipmakers Friday; a miss or cautious guidance would extend the rotation away from AI-adjacent names toward defensive and energy.

The Federal Reserve remains a secondary but persistent variable. Governor Waller is scheduled to speak in Rome at the ESCB conference, and Vice Chair Bowman has remarks on the calendar — both will be parsed for signals on whether Logan's hawkish dissent represents a lone voice or a shifting consensus. With September hike expectations sitting near 50%, any language that endorses or distances from Logan's call will move rate-sensitive positioning across financials and growth equities. The constructive macro setup that Warsh established mid-week is not yet consensus, and the Logan-Bowman dynamic will be the primary Fed signal to watch before the next FOMC meeting.