On Monday, the U.S. stock market experienced volatility as the S&P 500 index and NASDAQ index pulled back from record highs, pausing the upward momentum of the three major indexes. In the technology sector, apart from NVIDIA maintaining stability during trading, the other 'Big Seven' technology giants generally declined, especially Tesla, which suffered a heavy blow with a drop of nearly 8%, marking the biggest single-day decline since the release of its quarterly report. Apple also dropped more than 3%, reflecting the market reaction following the EU's $1.8 billion fine against the company.