US stocks were mixed after the Nasdaq Composite closed at a new high, led by gains in Nvidia shares.
However, other major Wall Street indexes fell as inflation and bank earnings reports failed to reassure investors.
The Nasdaq also posted its fourth record close in five sessions and eighth since June 27.
Nvidia's plan to continue selling its H20 AI chips to China supported its share price gains, while Advanced Micro Devices (AMD) and Super Micro Computer shares jumped more than 6.4%.
The Dow Jones industrial average fell 0.98% to 436.36 points, the S&P 500 fell 0.40% to 24.80 points, while the tech-focused Nasdaq rose 0.18% to 37.47 points.
In other developments, the market has also shown positive development in recent weeks, due to the reduction of concerns over President Donald Trump's tariff policies.
This week is expected to be a key one for the market after the start of the second-quarter earnings season and the publication of key inflation reports.
The preliminary US consumer price index (CPI) showed a five-month increase of 2.7% in June, indicating the possible impact of tariffs on inflation.
Trading volume on US exchanges recorded $16.82 billion compared to an average of $17.55 billion over the full 20 trading days.
