U.S. stocks finished mixed on Monday, August 24, as weakness in semiconductor shares pulled the S&P 500 and Nasdaq lower while the Dow advanced. Investors entered a catalyst-heavy week cautiously, with Nvidia's earnings and Federal Reserve Chair Kevin Warsh's Jackson Hole speech still ahead.
Market at a Glance
| Index | Close | Daily change |
|---|---|---|
| S&P 500 | 7,652.86 | -21.51 (-0.3%) |
| Nasdaq Composite | 25,980.19 | -200.26 (-0.8%) |
| Dow Jones Industrial Average | 53,417.16 | +140.15 (+0.3%) |
| Russell 2000 | 2,995.08 | -22.79 (-0.8%) |
The divergence was notable. Most S&P 500 constituents rose, but losses in several highly valued technology companies were large enough to pull the capitalization-weighted index lower. The Dow's gain showed that the session was not a broad market selloff, while the Russell 2000's decline indicated that smaller companies did not share in the blue-chip resilience.
Semiconductors Lead the Decline
Nvidia fell 2.9% and exerted the greatest downward pressure on the S&P 500. Micron Technology dropped 5.8%, and Broadcom lost 2.6%. The moves reflected renewed caution about whether the extraordinary demand for artificial-intelligence infrastructure can continue generating profits sufficient to support elevated valuations.
Nvidia is scheduled to report quarterly results on Wednesday. Because it is the largest and most influential U.S. stock, its results and outlook could affect not only semiconductor companies but the broader market's assessment of the AI investment cycle.
Monday's weakness does not by itself show that AI demand is deteriorating. It is more accurately read as risk reduction before a major earnings event following a summer of sharp swings in AI-related shares.
Oil and Treasury Yields Ease
Brent crude fell 2.3% to $90.54 per barrel. Oil has remained volatile as investors evaluate the war with Iran, new U.S. sanctions, and prospects for tankers to move more freely out of the Persian Gulf.
The decline in oil helped ease inflation concerns and supported the Treasury market. The 10-year Treasury yield fell to 4.70% from 4.74% late Friday, returning below its level before the Treasury Department announced larger planned bond buybacks the prior week.
Lower yields ordinarily provide support for growth-stock valuations, but that tailwind was insufficient to offset company-specific caution in semiconductors. This is an interpretation of the session's price action rather than evidence that the relationship between yields and technology shares has broken down.
Long-term yields remain elevated despite Monday's decline. Investors continue to weigh persistent inflation, the size of the federal debt, and whether Treasury purchases can materially affect a market much larger than the planned buybacks.
Fed Policy Moves Into Focus
Federal Reserve Chair Kevin Warsh is scheduled to speak Friday at the Jackson Hole economic symposium. Investors are seeking clues about how the central bank will balance inflation risks against signs of uneven economic momentum.
Warsh has indicated that he wants financial markets to respond more to incoming data than to detailed Fed guidance. That approach may make Friday's remarks less explicit than investors expect, potentially leaving bond yields sensitive to inflation and growth releases.
The combination of Nvidia on Wednesday and the Fed chair on Friday creates two distinct risks: an earnings test for the AI-led equity rally and a policy test for the bond market. Monday's subdued, divergent trading was consistent with investors waiting for those events rather than committing to a clear direction.
What Investors Should Watch Next
Nvidia's revenue growth, profit margins, and forward guidance will be the most immediate corporate signals. Strong numbers may reassure investors that AI spending remains durable; any disappointment could amplify pressure across semiconductor and data-center shares.
The 10-year Treasury yield is the second key indicator. A sustained move below 4.7% would ease financing pressure, while a renewed rise could weigh on housing, small caps, and richly valued growth companies.
Oil remains the third major variable. Brent's decline was favorable for inflation expectations, but geopolitical developments have caused rapid reversals throughout the summer.
The verified facts support a cautious but not broadly bearish conclusion. Technology and small caps weakened, yet the Dow rose and most S&P 500 stocks advanced. Markets appear to be consolidating ahead of unusually influential earnings and policy events rather than expressing a single view about the economy.
Sources
- Associated Press: Wall Street drifts at the start of a week that could swing stocks and bonds
- Associated Press: How major U.S. stock indexes fared Monday
Market data reflects the U.S. regular trading session on August 24, 2026. This article is for informational purposes only and is not investment advice.