U.S. stocks finished lower today, with the Dow down 1.17%, S&P 500 off 0.58%, Nasdaq down 0.32%, and Russell 2000 falling 0.52%.
Healthcare was the biggest drag, while housing, autos, software, retail and insurance also struggled. Technology was more resilient, with semiconductors, memory stocks and several AI infrastructure names outperforming.
Treasury yields edged higher, while WTI crude rose 1.7% as fighting in the Middle East intensified. The dollar weakened slightly, gold fell 0.8%, and Bitcoin declined 1.6%.
Middle East Escalation Keeps Oil in Focus
Geopolitics returned to center stage following another escalation between the U.S., Iran and regional actors.
The U.S. reportedly struck Iranian tankers near Kharg Island after additional attacks on shipping, while Houthi forces targeted Saudi oil facilities. Brent crude remains close to $100 per barrel, and diesel prices continue to sit near record levels.
There may still be a path toward easing tensions. Iran and Oman are reportedly working on a temporary safe-shipping arrangement through the Strait of Hormuz.
For markets, however, the immediate concern remains inflation. Persistently high oil and diesel prices raise transportation and production costs throughout the economy, making it harder for inflation to return sustainably to the Fed’s 2% target.
AI Stocks Continue to Show Relative Strength
Despite the broader decline, several parts of the AI trade performed well.
Qualcomm gained after announcing a collaboration with Amazon to develop AI data-center infrastructure. ASML rose after securing commitments from Samsung and Taiwan Semiconductor to use its next-generation High NA EUV equipment, while Intel gained on reports of another 10% increase in CPU prices.
Corning also announced a multibillion-dollar agreement with Verizon to provide broadband infrastructure needed to support growing data-center demand.
The broader AI story therefore remains intact. Demand for computing capacity, advanced chips, networking equipment and power infrastructure continues to generate substantial investment even as investors become more selective elsewhere in the technology sector.
Healthcare Takes a Hit
Healthcare was today’s weakest major area. Novartis fell nearly 14% after two experimental drugs produced disappointing late-stage trial results, while Stryker declined after management discussed continued weakness in parts of its medical-device business. Boston Scientific also fell after warning that a previously disclosed cybersecurity incident could prevent it from meeting its quarterly and full-year targets.
These were mostly company-specific issues rather than evidence of deterioration across the entire healthcare sector, but their size helped weigh heavily on the broader market.
Inflation Data Becomes the Next Big Test
The economic calendar was relatively quiet.
Small-business optimism weakened in August, with businesses continuing to cite softer sales, supply disruptions and inflation as concerns. Consumer inflation expectations remained elevated, although longer-term expectations eased slightly.
The much bigger event comes Friday with the August CPI report.
Core inflation is expected to rise 0.2% for the month, which would bring the year-over-year rate down slightly to 2.4%. Markets currently see the probability of another September Fed rate hike at just under 60%.
That means even a modest surprise in Friday’s inflation numbers could meaningfully shift expectations for next week’s Fed meeting.
Here’s Our Take
Today’s decline highlights the increasingly unusual crosscurrents facing investors.
On one side, AI investment remains exceptionally strong. Companies are still expanding data centers, increasing chip capacity and signing multibillion-dollar infrastructure agreements. That continues to provide meaningful support for technology and capital spending.
On the other side, the macro backdrop remains uncomfortable. Oil is approaching $100, diesel prices remain exceptionally high, geopolitical risks are elevated and the Fed is still considering another rate hike.
That makes inflation the critical link between these stories.
If Friday’s CPI report confirms that underlying inflation is continuing to cool, the Fed may have room to look through the recent energy shock and keep rates unchanged. But if inflation proves sticky, higher energy prices combined with a resilient economy could strengthen the argument for another rate hike.
For now, the market appears willing to reward areas with strong underlying growth, particularly AI infrastructure, but the broader market may struggle to make sustained progress until investors have greater clarity on inflation and interest rates.
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