Stocks finished lower today, with the Dow down 0.60%, S&P 500 off 0.58%, Nasdaq down 0.65%, and Russell 2000 falling 1.04%. The S&P 500 and Nasdaq have now declined for four straight sessions. AI-related stocks were among the weakest areas, along with homebuilders, industrials, retailers and commodity-sensitive names. Managed care, software, transportation, insurers and consumer staples held up better.
The biggest pressure came from oil and interest rates. WTI crude jumped 6.7% to above $102 per barrel, while short-term Treasury yields rose sharply. The 2-year yield moved back above 4.55%, and the 10-year climbed above 4.95%.
Oil Becomes an Even Bigger Inflation Problem
Energy prices were once again the dominant macro story.
WTI crude has now risen for eight consecutive sessions and roughly 20% over that stretch, as the conflict involving Iran continues to disrupt energy markets and raise concerns about shipping through key Middle Eastern waterways.
Attention has increasingly shifted toward the Bab el-Mandeb Strait and the risk that Houthi activity could further interfere with global trade and energy flows.
That matters well beyond the oil market.
Higher crude prices eventually feed into gasoline, diesel, shipping and production costs throughout the economy. With inflation already running above the Fed’s target, another sustained energy shock could make it much harder for policymakers to justify holding rates steady.
Bond Yields Jump as Rate-Hike Odds Rise
Treasury yields moved sharply higher, particularly at the short end of the curve.
Part of the move reflected higher oil prices, but investors were also digesting inflation data and a more hawkish global central-bank backdrop.
August producer inflation was mixed. Core PPI rose just 0.2%, slightly below expectations, but headline prices increased 0.4%, with energy costs a major contributor. Diesel prices at the producer level surged more than 24% for the month.
Some components that feed into the Fed’s preferred PCE inflation measure also remained firm.
As a result, markets increased the estimated probability of a September Fed rate hike to roughly 68%.
Tomorrow’s CPI report now takes on even greater importance.
AI Stocks Take a Breather
AI and semiconductor stocks were among today’s weaker areas despite generally positive corporate commentary throughout the week.
Memory stocks came under pressure after reports that a new DeepSeek model requires less high-bandwidth memory and storage capacity, raising concerns that more efficient AI models could eventually reduce demand for certain types of hardware.
Micron fell nearly 5%. That does not necessarily undermine the broader AI investment story. Dell, Broadcom and other companies have continued to describe exceptionally strong demand for computing infrastructure.
But it highlights an important point: AI spending may continue growing rapidly even as the mix of winners changes. More efficient models could benefit software users and cloud providers while creating pressure for certain hardware suppliers.
Consumers and Housing Feel the Rate Pressure
Higher yields also weighed on economically sensitive parts of the market.
Homebuilders and building-product companies declined as mortgage-rate concerns returned, while retail and apparel stocks were broadly weak.
American Eagle fell sharply despite reporting better headline earnings, as investors focused on markdown pressure and a weaker underlying outlook for its core brand.
Existing-home sales also came in softer than expected and remained near historically weak levels.
The market continues to show that higher borrowing costs are having very different effects across the economy, even as employment and broader economic activity remain relatively resilient.
Here’s Our Take
Today’s selloff reinforces what has become the market’s central problem: oil, inflation and interest rates are increasingly feeding into one another.
The corporate backdrop is still reasonably healthy, and the AI investment cycle remains strong. But markets are having a harder time looking past the macro environment as crude pushes above $100 and Treasury yields approach levels not seen in years.
The important question is whether this energy shock proves temporary.
If oil stabilizes and tomorrow’s CPI report confirms that underlying inflation is still cooling, the Fed could retain some flexibility and markets may find relief.
But if inflation comes in hotter than expected, the combination of strong employment, rising energy costs and elevated inflation would make another rate hike much easier for the Fed to justify.
That is why tomorrow’s CPI report matters so much. It is no longer simply about whether inflation is improving. It may determine whether the recent rise in oil and yields becomes a temporary market setback or the start of a more meaningful tightening in financial conditions.
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