Market action on Thursday produced sizeable gains and losses across the capitalization spectrum as investors reacted to analyst moves, company guidance updates and corporate developments. A mix of upgrades and forward guidance helped some names rally, while other large-cap technology and semiconductor stocks saw meaningful declines.
Mega-Cap Movers (Market Cap: $200 billion USD or higher)
- Palantir Technologies Inc (PLTR) - DA Davidson upgraded Palantir's rating citing demand for AI orchestration, and the stock rose +3.07%.
- Intel Corp (INTC) fell -1.26%.
- Micron Tech (MU) declined -1.65% amid a Bloomberg report noting Apple is in discussions to buy memory chips from Chinese companies.
- Facebook Inc (META) slid -3.53%.
- Tesla Motors (TSLA) dropped -5.35%.
- Kla-tencor Corp (KLAC) moved down -6.78%.
Large-Cap Movers (Market Cap: $10-$200 billion USD)
- Rivian Automotive (RIVN) jumped after the company raised its 2026 delivery guidance following a strong Q2, climbing +14.46%.
- Circle Internet Group Inc (CRCL) gained +8.64%.
- MicroStrategy Inc (MSTR) advanced +8.89%.
- Robinhood Markets (HOOD) increased +6.62%.
- Coeur dAlene Mines Corp (CDE) rose +5.88%.
- Astera Labs (ALAB) added +0.54%.
Mid-Cap Stock Movers (Market Cap: $2-$10 billion USD)
- Galena Biopharma (SLS) climbed +12.55%.
- Chenghe Acquisition II (PLBL) moved up +11.52% after Polibeli signed an MOU to evaluate an AI computing center in Thailand.
- York Space Systems Inc (YSS) increased +7.48%.
- Churchill Capital (INFQ) rose +7.04% after Canaccord initiated Infleqtion stock with a buy rating tied to quantum tech.
- Arteris (AIP) dropped -14.56%.
Small-Cap Stock Movers (Market Cap: $300 million - $2 billion USD)
- Oxygen Biotherape (TENX) - Tenax Therapeutics is set to present Phase 3 trial results at ESC; the stock gained +11.81%.
- CONL rose +10.96%.
- Aevex Inc (AVEX) increased +9.37%.
- RKLX added +5.45%.
- MSTU fell -12.9%.
Across the market-cap tiers, the session combined company-specific developments, analyst activity and corporate guidance as drivers of volatility. Gains were concentrated among names with positive announcements or analyst support, while several large-cap technology and semiconductor stocks experienced downward pressure.
Summary of the session: Palantir and Rivian were among the notable gainers on analyst upgrade and raised guidance respectively, while multiple large-cap tech and chip stocks posted declines. Movements spanned mega-cap to small-cap names, reflecting a range of catalysts in a single trading day.