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Stock Markets February 11, 2026

Stocks See Wide Swings; Micron, Applied Materials and Lam Lead Gains While Palantir, Unity Slide

Market participants reacted to corporate updates and guidance, producing sharp moves across mega-, large-, mid- and small-cap names

By Jordan Park PLTR MU XOM CAT TXN
Stocks See Wide Swings; Micron, Applied Materials and Lam Lead Gains While Palantir, Unity Slide
PLTR MU XOM CAT TXN

Trading on Wednesday produced pronounced winners and losers across market-cap ranges as earnings updates, guidance, board moves and corporate announcements influenced shares. Chip-related names such as Micron Technology and Applied Materials were among the gainers in the mega-cap cohort, while Palantir and several large-cap and small-cap names recorded steep declines tied to company-specific news and guidance developments.

Key Points

  • Corporate announcements and guidance were primary drivers of the day's largest stock moves across mega-, large-, mid- and small-cap segments.
  • Semiconductor-related names and chip-equipment suppliers featured among the gainers, reflecting sector-specific momentum.
  • Biotech and smaller-cap companies showed elevated volatility, with several names down sharply on trial updates or analyst and management developments.

Stocks moved unevenly across the market on Wednesday as company announcements and forward guidance drove pronounced daily performance differences. The session saw a mix of rallies in semiconductor and industrial names and sharp sell-offs in companies facing guidance disappointment or other company-specific developments.

Mega-cap movers

  • Palantir Technologies Inc (PLTR) - Palantir extends multi-year agreement with Airbus for Skywise platform -4.26%
  • Micron Technology (MU) +3.85%
  • Exxon Mobil (XOM) +2.43%
  • Caterpillar (CAT) +2.29%
  • Texas Instruments (TXN) +2.06%
  • Lam Research Corp (LRCX) +1.78%
  • GE Vernova LLC (GEV) +1.62%
  • Applied Materials Inc (AMAT) - Applied Materials unveils new chipmaking systems for 2nm transistors +0.69%
  • Intel Corp (INTC) -0.44%
  • Alibaba-exch (BABA) -2.91%

Large-cap movers

  • Unity Software Inc (U) - Unity appoints Match Group CEO Bernard Kim to board of directors -32.73%
  • Astera Labs (ALAB) - Astera Labs falls as Q1 guidance dampens strong Q4 results -20.74%
  • Zillow Group Inc (ZG) -17.73%
  • Avantor Inc (AVTR) - Avantor shares fall over 5% as revival program fails to impress -17.79%
  • Robinhood Markets (HOOD) -12.59%
  • Lattice Semiconductor (LSCC) - Lattice Semiconductor shares jump 7% on strong Q1 guidance +12.38%
  • Advanced Energy (AEIS) - Advanced Energy shares jump as Q4 results top expectations +13.14%
  • Solstice Advanced Materials (SOLS) - Solstice Advanced Materials misses Q4 earnings expectations +11.85%
  • Generac Holdings (GNRC) +10.87%
  • BorgWarner (BWA) +19.95%

Mid-cap movers

  • Teradata (TDC) - Teradata soars 16% as guidance impresses following Q4 earnings, revenue beat +32.43%
  • Diodes Inc (DIOD) - Diodes shares surge as strong Q1 guidance outweighs earnings miss +27.07%
  • Terex Corp (TEX) - Terex shares fall 2% as revenue misses expectations despite earnings beat +14.71%
  • Freshworks Inc (FRSH) - Freshworks shares drop as earnings guidance disappoints investors -16.27%
  • Lyft (LYFT) -15.93%
  • Vertex Inc (VERX) -14.18%
  • Upstart Holdings Inc (UPST) - Upstart shares soar 11% as 2026 revenue guidance tops estimates -12.94%
  • Mattel Inc (MAT) - Mattel shares tumble 9% as Q4 results, guidance fall short of expectations -25.43%
  • Centrus Energy (LEU) -20.02%
  • Avantor Inc (AVTR) -17.79%

Small-cap movers

  • Upstream Bio (UPB) - Upstream Bio to report verekitug phase 2 trial results for severe asthma -46.78%
  • Rapid7 Inc (RPD) -25.41%
  • Angies List Inc (ANGI) -24.08%
  • AtriCure (ATRC) -16.07%
  • MasterBrand (MBC) - MasterBrand shares tumble as Q4 earnings miss, guidance disappoints -12.66%
  • American Woodmark (AMWD) -13.41%
  • Kornit Digital Ltd (KRNT) +16.99%
  • Aehr Test Systems (AEHR) +27.1%
  • Nektar Therapeutics (NKTR) - William Blair upgrades Nektar Therapeutics stock rating to Outperform +14.57%
  • Mntn Inc (MNTN) - MNTN soars 40% as fourth quarter earnings crush expectations +31.98%

Wednesday's session underlined the degree to which company announcements, guidance and board-level developments can drive sizable one-day moves across the capitalization spectrum. Semiconductor-related companies and capital equipment providers registered notable gains, while companies announcing disappointing guidance or other headwinds experienced meaningful declines. Small-cap biotech and specialty names also demonstrated elevated volatility tied to trial news and analyst coverage.

Risks

  • Companies that issued disappointing guidance or underwhelming program updates experienced steep share declines, highlighting the earnings and guidance risk for large- and mid-cap stocks (impacts: technology, industrials, corporate services).
  • Small-cap biotech and specialty companies can react sharply to clinical trial timing and news, introducing clinical-readout risk for healthcare and biotech investors.
  • Board changes and corporate agreements can produce abrupt investor re-pricing, creating governance and event-driven risk for individual equities.

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