[U.S. Stocks Close Lower, SK Hynix ADR Drops Over 13%, Semiconductor Index Officially Enters Technical Bear Market, Down 22% from June High] BlockBeats News, July 17, according to BIT (bit.com) market data, the three major U.S. stock indices collectively closed lower: the Dow Jones fell 0.2%, the Nasdaq fell 1.47%, and the S&P 500 Index fell 0.51%. The Philadelphia Semiconductor Index dropped 4.3% in a single day, with the semiconductor sector down 22% cumulatively from its mid-June high, officially entering a technical bear market. Semiconductor and storage concept stocks plunged: SK Hynix ADR fell over 13%, SanDisk fell over 12%, Micron fell over 5%, Western Digital fell over 9%, and Seagate Technology fell 10%.