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US Stock Indices Rebound Amid Semiconductor and AI Sector Surge

WireByte Staff · June 19, 2026

US stock indices rebounded on Thursday, led by the Russell 2000's 2.12% gain, as investors favored semiconductor and AI-related technology stocks. The NASDAQ rose 1.91% and S&P 1.08%, while the Dow modestly rose 0.14%. US stock exchanges will be closed tomorrow for the Juneteenth holiday.

Key points

  • The Russell 2000 index rose by 2.12% to lead US stock indices higher on Thursday.
  • The NASDAQ index rose by 1.91% and the S&P 500 index rose by 1.08%, while the Dow modestly rose 0.14%.
  • US stock exchanges will be closed tomorrow for the Juneteenth holiday.
  • Semiconductor and AI-related technology stocks led the gains, with companies tied to memory chips, AI infrastructure, and data center spending favored by investors.
  • Top gainers included SanDisk, Corning, Intel, and Micron, with some stocks rising by over 10%.

US Stock Indices Rebound Amid Semiconductor and AI Sector Surge

US stock indices rebounded on Thursday, led by the Russell 2000's 2.12% gain, as investors favored semiconductor and AI-related technology stocks. The NASDAQ rose 1.91% and S&P 1.08%, while the Dow modestly rose 0.14%.

The gains were concentrated in the semiconductor and AI sector, with 8 of the 12 top gainers directly tied to chip production, chip equipment, networking, memory, or AI servers. Top gainers included SanDisk, Corning, Intel, and Micron, with some stocks rising by over 10%.

US stock exchanges will be closed tomorrow for the Juneteenth holiday, but the rally is expected to continue in the coming days. Investors are optimistic about the sector's growth prospects, driven by increasing demand for AI infrastructure and data center spending.

Sources

WireByte Staff — Editorial Team

The WireByte editorial team synthesises technology news from multiple primary sources, verifies the facts, and links every source. Articles are produced with AI assistance and reviewed under our editorial policy.