The performance of American stocks varied at the opening of today's session.

The performance of U.S. stocks varied significantly at the opening of Tuesday's session, with the performance of U.S. stock indices as follows:

• The S&P 500 index rose marginally by about 0.04% to 6,055.50 points.
• The Nasdaq Composite index fell by approximately 0.37%, recording a level of 19,809.38 points.
• The Dow Jones Industrial Average lost 152.58 points, trading near 44,249.35 points.

It is worth noting that U.S. stocks closed Monday's session with a collective decline across all major indices, as the Dow Jones Industrial Average dropped by 240.59 points, closing at 44,401.93 points.

The S&P 500 index also closed trading near the level of 6,052.85 points, with an increase of 0.61%, while the Nasdaq Composite index declined by 0.84%, recording 21,440.82 points.