[Pre-market U.S. stocks: AI hardware stocks rebounded collectively, SanDisk rose nearly 8%, and semiconductor equipment stocks were among the top gainers] At 17:00 Beijing time, U.S. stocks began pre-market trading. The U.S. AI hardware industry chain rebounded strongly before the opening, with chips, storage, semiconductor equipment and optical communications sectors generally rising. In terms of individual stocks, Lam Group rose 9.08% before the market opened, SanDisk rose 7.97%, Marvell Technology rose 7.03%, Lumentum rose 6.86%, Micron Technology rose 6.44%, Arm rose 6.12%, Applied Materials rose 5.85%, AMD and TSMC both rose 5.69%, Western Digital rose 5.61%, and Coherent rose 5.18%. On the previous trading day, AI hardware stocks suffered heavy losses, with the Philadelphia Semiconductor Index plunging 12.25%, Micron Technology falling 17.46%, AMD falling 17.26%, SanDisk falling 22.26%, Western Digital falling 17.35%, and Seagate Technology falling 16.25%. The pre-market rebound partially recovered the losses of the previous trading day.