US inflation cools to 3.4 per cent, cutting September hike odds to 38 per cent

By Vikram Singh · 2026-08-14

The number that moved markets

The margin between a Federal Reserve rate hike and a hold just got a lot thinner. According to the Bureau of Labor Statistics, the Consumer Price Index for All Urban Consumers increased 0.1 percent on a seasonally adjusted basis in July after falling 0.4 percent in June, pulling the annual rate down to 3.4% from 3.5% in June.^[1] June's outright fall of 0.4% was the sharpest single-month drop in years; July's 0.1% gain is the softest positive reading since.

Monthly readings feed the Fed's own models, and a string of sub-0.2% months changes the arithmetic on further tightening faster than any commentary from a governor's speech.

What drove the cooling

Two components did the heavy lifting in both directions. The energy index fell 1.5% in July, continuing a retreat from its May peak, with the index roughly 7% below its May high.^[1] Lower petrol prices wash through quickly: they cut transport costs for consumers, compress input costs for goods producers, and soften the mood of monthly CPI prints in ways that core measures strip out but the headline feels immediately.

Shelter, the stickiest component of this entire tightening cycle, finally gave some ground. The index for shelter rose 0.1 percent in July 2026, accounting for roughly two-thirds of the monthly all-items increase, which tells you how much of the residual inflation problem was concentrated there, and how little else was moving.^[1] When shelter is your biggest contributor at 0.1%, the basket has gone quiet.

Core CPI, which strips food and energy and is the Fed's preferred gauge for underlying price pressure, rose 0.2% in July and 2.5% over the 12 months to July, down 0.1 percentage point from the June annual reading.^[1] That matched Dow Jones consensus to the decimal place, and the reaction across rates markets was orderly rather than violent.

Why this cycle is about hikes, not cuts

The temptation with any cooling inflation print is to reach for the rate-cut narrative. The Federal Reserve spent the first half of 2026 lifting the federal funds rate multiple times in response to energy price spikes and tariff shocks that pushed headline inflation well above target.^[2] The question in front of the September 15 to 16 meeting is whether officials have seen enough to justify one more hike, or whether they sit on their hands.

A single tame monthly print does not close that debate. What it does is shift the balance of probability. The Fed needs to see enough consecutive soft readings to be confident the tariff and energy shock has fully worked through the system, rather than paused. July gives them one more data point in that direction.

Market reaction: hike odds fall to 38%

The clearest immediate signal came from the derivatives market. Odds of a Federal Reserve rate hike at the September 15 to 16, 2026 meeting fell to approximately 38% following the July CPI release, according to the CME FedWatch Tool.^[2] The prior day's reading had been 48%. A month ago, the same tool showed roughly 70% probability of a hike.

Oil markets have softened, shelter is finally unwinding, and the tariff shock that animated the early-2026 tightening push has begun to fade from year-on-year comparisons. The September meeting is not a done deal either way, but the Fed's bar for hiking into a decelerating inflation environment is high, and markets know it.

The Australian angle

Australian investors have a direct stake in where the Fed lands. When US rate expectations fall, the yield differential between US and Australian assets compresses, which generally supports the Australian dollar and reduces the headwind for local equities with offshore earnings. The Australian dollar was trading at US$0.7064 as of 7 August, before the July CPI print landed.^[4] Any sustained repricing lower of US rate expectations typically lends the currency modest support.

The Reserve Bank of Australia held its cash rate at 4.35% at its board meeting on 11 August 2026, one day before the US data arrived.^[3] At its meeting today, the Board decided to leave the cash rate target unchanged at 4.35 per cent.^[3] The RBA had lifted rates three times earlier in 2026 before pausing, mirroring the global pattern of central banks watching whether their earlier tightening is doing the work.

With domestic equity benchmarks trading near record levels and the RBA in a said hold, a less aggressive Fed is broadly constructive for Australian assets. It reduces the risk of a sharp appreciation in the US dollar that would drag the Australian dollar lower and squeeze import cost pressures into the domestic economy at a moment when the RBA is trying to hold the line without further hikes. Whether August and September US prints follow July's lead, or snap back toward the discomfort zone that pushed hike odds to 70% just a month ago, will determine how long that constructive read holds.

Vikram Singh

Vikram Singh writes about banking. He follows where money actually moves, from the strategy set in head office to what changes on a customer's phone.