The August CPI print, released September 11, came in at 3.4% year-over-year, with core inflation (excluding food and energy) at 2.4%. Those numbers alone don't look dramatic. Look inside them and two things stand out: energy prices are up 16.3% year-over-year, with gasoline alone up 27.4% and a 3.9% jump in August that accounted for more than a third of that month's entire increase in the all-items index. That's not noise. That's a specific, identifiable driver, and it's not the only one.
The first driver is the Middle East. Escalating conflict between the US and Iran through August and September — strikes on Iranian oil tankers, retaliatory threats against Gulf energy infrastructure, real tension around the Strait of Hormuz, a critical artery for global crude shipments — has pushed Brent crude to around $98 a barrel, up sharply from levels in the low $70s earlier in the year during a lull in talks. Goldman Sachs has raised its Brent forecast to $85 for December and doesn't expect a full return to pre-conflict throughput until late in the first quarter of 2027 at the earliest. That's a geopolitical risk premium sitting directly on top of every gallon of gas and every input that depends on transportation and energy costs, and it's the single clearest line item in the August inflation data.
The second driver is less visible day-to-day but structurally bigger: the AI infrastructure buildout. The major hyperscalers — Amazon, Microsoft, Google, and Meta — are on track to spend somewhere between $630 billion and $740 billion combined on capital expenditure in 2026, up 60% to 75% year-over-year. That capital is going into data centers at a pace the power grid can't keep up with. Vacancy in primary data center markets is sitting at a record-low 1.4%, and the constraint has shifted from capital and land to electricity itself — power density per server rack has climbed from the 5-to-10 kilowatt range of a traditional facility toward 100 kilowatts and beyond. Consumer electricity prices are forecast to rise around 6% annually through 2026 and 2027 as a direct result. In a recent survey by the National Association for Business Economics, 81% of business economists said they expect the AI buildout to add to inflation over the next year. That's not a fringe view. That's the consensus.
These two drivers are why the Fed moved on September 16, hiking for the first time since July 2023, a unanimous 12-0 vote to a target range of 3.75% to 4.00%, with the Fed's own projections pointing to at least one more hike before year-end. The distinction that matters for anyone making a longer-term financial or real estate decision right now is that these two drivers behave very differently over time. The Middle East conflict is geopolitical — it can de-escalate as fast as it escalated, and oil prices could give back a big chunk of this move on a single diplomatic breakthrough. The AI capex cycle is not that kind of risk. Hyperscaler infrastructure spending operates on a three-to-five-year build cycle, and the capital going in this year reflects demand projections that run through 2028 to 2030. That spending, and the power demand behind it, isn't reversing on a headline.
The practical takeaway: don't assume this inflation print is a temporary spike that unwinds itself the way the COVID-era supply chain shock eventually did. Half of what's driving it might. The other half is a multiyear capital commitment that's already been made. Plan financing, budgets, and rate expectations accordingly — higher-for-longer should be your base case, not your worst case.
