US Stocks Mixed: Tech Giants Dip, Taiwan Chipmaker ADRs Rise

U.S. stock markets experienced a mixed trading session on June 22, with major indices showing divergent performance. The S&P 500 and Nasdaq Composite closed lower, primarily due to significant drops in large-cap technology stocks. Investors continued to monitor geopolitical developments, including the aftermath of a potential agreement between the U.S. and Iran.

The tech sector faced considerable pressure, with five major tech giants all trading down. Alphabet saw a sharp decline of nearly 5%, while Meta fell 2.32%, Amazon dropped 4.75%, and Microsoft lost 3.18%. Apple registered a more modest decrease of 0.34%. SpaceX's stock price plummeted by 16.4%, marking its largest single-day drop and contributing to the Nasdaq's downturn.

In contrast, some semiconductor stocks showed strength. AMD rose 2.65%, and Micron Technology surged 6.82% ahead of its earnings report on June 24. Notably, Taiwan Semiconductor Manufacturing Company (TSMC) ADRs climbed 1.20% to $467.67, and United Microelectronics Corporation (UMC) ADRs soared 14.20% to $27.50.

The Dow Jones Industrial Average bucked the trend, closing up 148.01 points, or 0.29%, at 51,712.71. The Nasdaq Composite fell 351.33 points, or 1.33%, to 26,166.60, and the S&P 500 decreased by 27.79 points, or 0.37%, to 7,472.79. The Philadelphia Semiconductor Index, however, gained 2.04% to 14,634.72.