B[The decline in U.S. chip stocks intensifies, and the total market value may evaporate by more than 1 trillion US dollars] October 15th, as the market’s concerns about rising interest rates, overvaluation, and the huge cost of AI infrastructure intensify, the total market value of the Philadelphia Semiconductor Index component stocks is expected to evaporate by more than 1 trillion US dollars. The Philadelphia Semiconductor Index has fallen by about 10% in the past six trading days, and is set to set its longest losing streak since May 2025. More than half of the index's components fell at least 10% during that time. Arm Holdings fell nearly 20%, Applied Materials fell about 15%, and Intel fell 11%. GlobalFoundries Semiconductor was the only component to gain. Ulrike Hoffmann-Burchardi of UBS's chief investment office wrote in a research report on Wednesday: "The pressure on global chip stocks has further intensified in recent days. Although intensified competition in the AI field, rising financing needs and higher interest rates may increase market volatility from time to time, we believe that this recent round of decline is more about the market's readjustment of expectations rather than a fundamental change in AI investment logic."
Global AI-themed trading, led by semiconductor stocks, has seen a sell-off over the past week. B[Most U.S. AI hardware stocks rose before the market, ASML, Broadcom, and ARM rose more than 2%] On October 9, most U.S. chip stocks rose before the market opened. Lumentum rose 3.81%, Coherent rose 3.52%, ASML rose 2.71%, Arm Holdings rose 2.37%, Broadcom rose 2.10%, Micron Technology rose 2.05%, SanDisk rose 2.05%, and SK Hynix rose 2.22%. Nvidia rose 1.69%, TSMC rose 1.36%, and the Philadelphia Semiconductor Index remained unchanged. B[AI hardware stocks rose almost across the board before the U.S. stock market opened] On September 25th, AI hardware stocks rose almost across the board before the U.S. stock market opened. Nvidia rose 0.29%, TSMC rose 0.46%, Broadcom rose 1.02%, and S K Hynix rose 1.23%, Micron Technology rose 0.89%, Advanced Micro Devices rose 1.94%, Intel rose 1.48%, ASML rose 1.00%, Lam Group rose 1.23%, Arm Holdings rose 2.85%, SanDisk rose 1.88%, Qualcomm rose 0.42%, Western Digital rose 1.37%, Seagate Technology rose 1.28%, Marvell Technology rose 1.61%, Lumentum rose 1.55%, Coherent rose 2.17%, and the triple long semiconductor ETF-Direxion rose 3.34%. B[U.S. chip and semiconductor stocks fell before the market opened Multiple stocks fell more than 2%] September 24th, U.S. chip semiconductor stocks fell before the market. Nvidia fell 1.25%, TSMC fell 1.42%, Broadcom fell 1.50%, SK Hynix fell 2.03%, Micron Technology fell 2.43%, Super Micro fell 2.07%, Intel fell 3.03%, ASML fell 2.12%, Lam Group fell 2.49%, Arm Holdings fell 4.07%, SanDisk fell 2.97%, Qualcomm fell 1.72%, Western Digital fell 3.15%, Seagate Technology fell 2.44%, Marvell Technology fell 3.39%, Lumentum fell 2.45%, Coherent fell 3.29%, and the triple long semiconductor ETF-Direxion fell 5.76%. A[The three major U.S. stock indexes collectively opened higher and many AI hardware stocks rose more than 3%] The three major U.S. stock indexes collectively opened higher, with the Dow Jones Index rising 0.81%, the S&P 500 Index rising 1.19%, and the Nasdaq Composite Index rising 1.55%. The Philadelphia Semiconductor Index rose 2.86%, SpaceX rose 1.76%, Nvidia rose 1.85%, TSMC rose 1.72%, Broadcom rose 1.89%, SK Hynix rose 4.54%, Micron Technology rose 3.42%, Intel rose 4.54%, ASML rose 2.10%, Lam Group rose 3.42%, Arm Holdings rose 8.15%, SanDisk rose 3.79%, Qualcomm rose 2.58%, Western Digital rose 1.77%, Seagate Technology rose 2.78%, Marvell Technology rose 5.12%, Lumentum rose 2.01%, Coherent rose 4.54%, and the triple long semiconductor ETF-Direxion rose 9.14%. A[U.S. chip and semiconductor stocks strengthened before the market opened, with most stocks rising more than 3%] On September 17, Nasdaq 100 Index futures are currently up 1.63%. U.S. chip semiconductor stocks strengthened before the market opened. Nvidia rose 2.25%, TSMC rose 1.77%, Broadcom rose 2.50%, SK Hynix rose 3.62%, Micron Technology rose 2.77%, Intel rose 3.47%, ASML fell 2.59%, Lam Group rose 4.37%, Arm Holdings rose 4.93%, SanDisk fell 3.20%, Qualcomm rose 3.33%, Western Digital rose 3.54%, Seagate Technology rose 3.58%, Marvell Technology rose 4.52%, Lumentum rose 3.11%, Coherent rose 4.67%, and the triple long semiconductor ETF-Direxion rose 9.38%. A[The Philadelphia Semiconductor Index rose by 3%, with storage and optical modules leading the gains] On September 4th, the Philadelphia Semiconductor Index rose by 3.01%, NVIDIA rose by 2.47%, TSMC rose by 2.09%, Broadcom rose by 0.45%, SK Hynix rose by 2.84%, Micron Technology rose by 3.26%, Intel rose by 1.88%, ASML rose by 3.97%, Lam Group rose by 4.84%, Arm Holdings rose 4.30%, SanDisk rose 5.39%, Qualcomm rose 0.74%, Western Digital rose 5.46%, Seagate Technology rose 5.84%, Marvell Technology rose 3.40%, Lumentum rose 3.38%, Coherent rose 5.89%, and the triple long semiconductor ETF-Direxion rose 8.86%.
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