Week of Sep. 7: Oil Shock, Inflation Test

U.S. stocks finished a volatile week with a Friday rebound, but the signal underneath was more complicated: an oil shock lifted inflation risk just as the August consumer-price report pushed expectations for a Federal Reserve rate hike higher. 12

The Dow fell 1.6% for the week, the S&P 500 lost 0.8%, and the Nasdaq Composite slipped about 0.7%. Friday provided a sharp counter-move: the Dow rose 0.98% to 52,573.29, the S&P 500 gained 0.86% to 7,656.98, and the Nasdaq advanced 0.96% to 26,333.04. 1

The relief came as oil prices pulled back from the week’s surge. West Texas Intermediate fell 2.4% Friday to $100.05 a barrel, while Brent declined 2.8% to $104.61. Even after that retreat, WTI was up nearly 10% on the week and Brent was higher by almost 9%. 13

Friday’s rebound was broad: 10 of the 11 S&P 500 sectors finished higher, led by communication services with a 1.9% gain. Hewlett Packard Enterprise and Dell Technologies each rose about 11%, while Seagate Technology fell more than 3.4%. Oracle also gave back an early post-earnings gain and turned lower. 1

That mix matters. Investors were willing to buy technology and communication names when the company-specific evidence was supportive, but the market still marked down exposures that looked vulnerable to higher yields, expensive energy, or a less forgiving policy path. The week was not a clean retreat from risk; it was a repricing of which risks deserved a premium.

The Bureau of Labor Statistics reported that producer prices rose 0.4% in August and 5.4% over the prior year. Final-demand goods prices jumped 1.1%, with energy up 4.2%. A measure excluding food, energy, and trade services rose 0.3% for the month and 4.7% over the year. 4

The consumer-price report brought the more important market reaction. Headline consumer prices rose 0.4% in August and 3.4% from a year earlier. Core prices, which exclude food and energy, increased 0.3% on the month and 2.4% over the year. Gasoline rose 3.9% and accounted for more than one-third of the monthly increase. 2

The result was a higher hurdle for an easier-policy trade. Reuters reported that market pricing put the probability of a quarter-point hike at about 87% after the inflation release, up from 72% on Thursday. CNBC reported the two-year Treasury yield above 4.6%, its highest level since July 2024. Those are market prices, not a promise from the Fed, but they show what investors are carrying into the meeting. 12

The Federal Open Market Committee meets September 15 and 16, and the September meeting is associated with a new Summary of Economic Projections. The Fed’s calendar confirms the dates, while the Federal Home Loan Bank of New York’s weekly update identifies the decision and projections as the central event. 56

The other checks are consumer demand and housing. The Census Bureau schedules August retail sales for Wednesday, September 16, and August building permits, housing starts, and completions for Thursday, September 17. Watch whether those releases keep the growth side of the equation firm while oil and inflation keep the policy side restrictive. 7

The week’s headline is a Friday rebound, but the durable signal is less comfortable: equities recovered while oil stayed high, inflation stayed sticky, and the market entered the Fed meeting pricing a hike. That is the balance to watch, not any single index close.