CPI landed at 3.4%. Core came in at +0.3% monthly — a tick above the 0.2% consensus. The day before, PPI printed 5.4% year-over-year, the sharpest acceleration in months. Energy accounted for a third of the headline increase. Gasoline alone rose 3.9%.
The data confirmed everything.
Then equities rallied 0.86%.
What Happened
The S&P snapped a four-day losing streak. The Dow gained 509 points. Nasdaq climbed nearly 1%. The catalyst wasn’t the CPI print — which was, at best, in-line and at worst, slightly hot on core. The catalyst was a headline out of the Gulf: foreign ministers from the GCC and Iran may meet September 14 in Salalah, Oman, to discuss an interim agreement on Strait of Hormuz shipping.
Brent dropped from $108 to $104.61 on the session. Down 2.8%.
The equity market heard “diplomacy” and bought the dip. Four days of selling, unwound in six hours.
The bond market heard the same headline. It didn’t move.
The 10-year yield closed near 4.92%. It was 4.79% at the overnight low. CPI pushed it higher. The diplomacy headline didn’t push it back down. That is a bond market that has already priced the September hike and sees no reason to reprice on a diplomatic meeting that hasn’t happened yet.
The Probability Arc
Track the hike probability through this week:
The CPI print barely dented it. Core running hot offset headline being in-line. The diplomacy headline shaved 4 points off — but 69% is still firmly in “likely hike” territory. The market moved from 60% to 73% on PPI and oil, then gave back 4 points on Salalah hopes. Net: +9 points on the week. Direction hasn’t changed.
What the Bond Market Knows
Three things that won’t change by Monday:
1. CPI is accelerating on the energy channel. August headline at 3.4% vs. July’s 3.1%. Core at 2.4% held, but monthly core at 0.3% is running above the annualized pace the Fed needs to see. PPI at 5.4% says the pipeline is full. Diesel +24.1% in the producer price index. This flows into everything that gets trucked.
2. Oil is still above $100. Brent at $104.61 is down from $108 but up from $90 ten days ago. The diplomacy hasn’t happened. The Salalah meeting isn’t confirmed. The Houthis seized Mokha port this week, advancing 80 kilometers toward Bab el-Mandeb. Even if the GCC and Iran sit down, Nerida’s territorial-control analysis says the structural risk hasn’t changed. A single failed meeting and oil retests $108.
3. Credit spreads are quietly widening. High-yield OAS moved to 284 bps from 266 a week ago. Not dramatic. Not a crisis. But credit is repricing for a tighter regime while equities are rallying on diplomacy. When equities and credit diverge, credit is usually right.
The Regime
Nothing in today’s data changed the macro regime. If anything, it confirmed it:
Inflationary acceleration driven by energy supply disruption, with the Fed leaning into a rate hike while the bond market prices it and equities pretend diplomacy will save them.
The hike path: PPI 5.4% → CPI 3.4% (core hot) → oil above $100 → gasoline $4.14/gal → FOMC September 15–16. Warsh has been hawkish since Jackson Hole. The data gives him cover. A 25bp hike is the base case at 69%. The only off-ramp would be a confirmed Hormuz ceasefire before Monday — and the Salalah meeting isn’t until Sunday, if it happens.
Sector implications: Growth multiples compress under a hike. Biotech, which already faces PDUFA convergence September 15, gets hit from two directions. Energy remains the inflation hedge but faces a ceiling if diplomacy gets real. Financials benefit from the rate environment but not if credit stress accelerates. The safest read: nothing in today’s session reduced the probability of a hawkish September.
Equities rallied. Bonds didn’t. When they split like this going into FOMC, the bond market tends to be the one that was paying attention.