S&P 500
7,656.98
+0.9%
A four-day slide broke Friday after an in-line August CPI and a 3% drop in Brent gave a jittery, rate-anxious market its first green session of the week.
For four straight sessions the tape had one instruction: sell into every rally the moment crude ticked higher. Friday, that reflex finally met its match. A cooler-than-feared read on Brent and an August inflation print that landed exactly where economists expected handed the S&P 500 its first up day of the week, a 0.9% bounce that clawed back a chunk of the damage but left the index down for the week all the same.
It was the kind of close that says more about nerves than conviction. Stocks did not rip higher because anything got resolved — the war with Iran still clogs the Strait of Hormuz, the 10-year Treasury yield is still parked near levels last seen in 2023, and the Federal Reserve still meets next week with a live hike on the table. What changed Friday was simply the absence of a fresh shock. In this market, that counts as a win.
The scoreboard above is Friday's snapshot; the story is the four red days that came before it. Crude did the driving all week, and the bond market amplified every move — each leg higher in oil pushed the 10-year yield up and cut into the valuations of the long-duration tech names that have led this bull market. Here is the day-by-day.
For the week the S&P still finished down about 0.8% and the Dow shed roughly 1.6% — Friday's rebound repaired the mood, not the ledger. The tell was in the internals: the Russell 2000, the most rate-sensitive corner of the market, lagged on the way down and only limped back 0.4% on Friday. When small caps can't rally hard on a green day, it usually means the bond market is still the one holding the leash.
Friday morning's August Consumer Price Index was the week's main event, and it threaded the needle. Headline prices rose 0.4% on the month — hotter than July's 0.1%, but bang in line with the 3.4% year-over-year consensus. Gasoline did the heavy lifting, up 3.9% and accounting for more than a third of the monthly increase, a direct fingerprint of the oil shock. The reassuring part sat underneath: core CPI, stripping out food and energy, cooled to 2.4% annually, its lowest since March 2021.
| August CPI | Reading | Signal |
|---|---|---|
| Headline MoM | +0.4% | In line |
| Headline YoY | 3.4% | Steady |
| Core MoM | +0.3% | In line |
| Core YoY | 2.4% | Cooling |
| Gasoline MoM | +3.9% | Hot |
The paradox for the Fed is right there in the table. The underlying trend is improving, but energy is dragging the headline the wrong way, and energy is precisely the variable a central bank cannot fix with interest rates. That is why an in-line report did nothing to talk the market out of a rate hike — if anything, bond traders leaned further into it, pricing higher odds that Chair Warsh and the FOMC move next week.
Everything now funnels toward the September 15–16 FOMC meeting. Coming out of Jackson Hole, futures had already flipped to pricing a high probability of the first rate increase since 2023 — a stunning reversal from the cuts markets expected earlier in the year. Friday's data didn't disturb that setup. Watch three things: whether Brent can hold below $105 or spikes again on any Hormuz headline, whether the 10-year yield breaches 5.00% (it flirted with it Thursday), and whether Big Tech can absorb higher rates without cracking.
The bigger picture keeps the bulls honest. Even after a rough week, the S&P sits only about 2% below its June record and is still up roughly 12% on the year. This is not a market in trouble — it is a market re-pricing for a world where inflation is stickier and growth is faster than the soft-landing script called for. That re-pricing is uncomfortable, but it is orderly. Next week we find out whether the Fed agrees.
Friday's rebound was relief, not resolution. Oil eased and CPI behaved, snapping a four-day slide — but the S&P still lost ground on the week, small caps stayed heavy, and the 10-year yield remains coiled near 5%. With the Fed's first hike in three years now the base case, the setup into September 15–16 is binary: this is a market waiting to be told how much higher rates are going.