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U.S. stocks open higher as semiconductor shares diverge

U.S. stocks open higher as semiconductor shares diverge

The Dow rose more than 420 points after the bell, but the Philadelphia Semiconductor Index barely moved as investors rotated toward Nvidia and away from AMD, Intel and some Taiwan-listed ADRs.

Fact Check
All four caller-supplied sources consistently confirm both parts of the claim. BlockBeats (359535) and CoinNess confirm the three major indices opened higher on August 3. BlockBeats (359480) confirms crypto-concept stocks fell broadly premarket, with Circle (CRCL) leading declines at -5.45% and Coinbase down 1.25%. PANews confirms Coinbase (COIN) and Robinhood (HOOD) both fell intraday. The exact companies named in the claim (Coinbase, Robinhood, Circle with Circle leading premarket declines) and the direction of movement all match the source data. Minor differences in exact index percentages across sources reflect different data providers (Bybit vs BIT) and timing, but the overall picture is fully consistent.
Summary

U.S. stocks opened higher on Aug. 5, with the Dow Jones Industrial Average up 422.02 points, or 0.78%, the S&P 500 gaining 50.40 points, or 0.65%, and the Nasdaq Composite rising 113.19 points, or 0.43%. Beneath the advance, chip shares split sharply: Nvidia jumped $6.73, or 3.18%, and Micron Technology rose about 0.29%, while AMD fell $30.88, nearly 6%, Apple slipped about 0.25% and Intel lost about 0.97%. The Philadelphia Semiconductor Index added only 5.81 points, about 0.05%, while Taiwan-listed ADRs were mixed, with Hon Hai Precision Industry up more than 4.13%, TSMC up $3.88, or about 0.93%, and ASE Technology Holding and United Microelectronics Corporation down 3.20% and 4.87%, respectively. The reversal from Aug. 4, when the semiconductor index surged more than 5% and Intel, AMD and UMC had rallied strongly, points to fast sector rotation as investors favor names with stronger AI-driven catalysts or more defensive characteristics.

Terms & Concepts
  • Philadelphia Semiconductor Index: A widely watched index of semiconductor stocks used to gauge momentum across the chip sector.
  • ADRs: American depositary receipts that allow shares of non-U.S. companies to trade on U.S. exchanges.
  • sector rotation: A shift of investor money from one group of stocks to another as views on growth, risk or earnings change.