Stock Markets August 25, 2026 02:05 PM

Tech and Biotech Names Lead Tuesday’s Market Movers

AMD, Moderna and a range of large- to small-cap stocks posted notable gains amid analyst actions and regulatory developments

By Sofia Navarro
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U.S. equities saw notable intraday moves on Tuesday, with semiconductor, biotech and other technology-related names among the strongest performers. Advanced Micro Devices and Moderna were standout gainers after analyst upgrades and trial-related optimism, while a set of mid- and small-cap companies posted double-digit percentage increases. Energy and financial-related headlines also featured among the market catalysts.

Tech and Biotech Names Lead Tuesday’s Market Movers
AMD DELL SPCX NFLX MRNA
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Key Points

  • Semiconductor and biotech stocks were among the strongest performers, led by Advanced Micro Devices and Moderna.
  • Analyst upgrades and trial-related news were key drivers of the largest gains, with Raymond James and Wolfe Research cited as triggering moves.
  • Regulatory developments affected certain energy-related stocks, illustrating cross-sector influences on market sentiment.

Stocks across market-cap tiers registered meaningful swings on Tuesday as company-specific headlines and analyst moves drove trading activity. Semiconductor and biotechnology issues were especially prominent, though investors also pushed shares higher in other sectors, from energy to small-cap robotics.

Below are the primary movers grouped by market-cap bracket, with the percentage changes reported during the trading session.


Mega-Cap Movers (Market Cap $200B+)

  • Advanced Micro Devices (AMD) - Raymond James upgraded AMD’s rating, citing an outlook for AI server growth: +4.67%
  • Dell Inc (DELL): +3.48%
  • SpaceX (SPCX): +2.67%
  • Netflix, Inc. (NFLX): +2.54%

Large-Cap Stock Movers (Market Cap $10B-$200B)

  • Moderna (MRNA) - Wolfe Research raised its rating on the company following trial results: +13.54%
  • Bloom Energy Corp (BE) - Reports indicate the SEC subpoenaed banks for details on situational awareness, according to NYT: +6.06%
  • Robinhood Markets (HOOD): +7.32%
  • Madison Air Solutions Inc (MAIR): +9.17%
  • Super Micro Computer (SMCI): +8.91%
  • Futu Holdings (FUTU): +8.89%
  • Iris Energy (IREN): +5.56%

Mid-Cap Stock Movers (Market Cap $2B-$10B)

  • Generate Biomedicines Inc (GENB): +12.44%
  • AltC Acquisition (OKLO): +12.17%
  • Rumble (RUM): +12.07%
  • Twist Bioscience Corporation (TWST): +9.13%

Small-Cap Stock Movers (Market Cap $300M-$2B)

  • Richtech Robotics (RR): +18.52%
  • Standard Nuclear (STDN): +18.01%
  • Inhibrx Biosciences (INBX): +15.95%
  • Cartesian Growth III (FAC): +13.7%

Tuesday’s session highlighted how targeted news - including analyst upgrades and regulatory inquiries - can translate quickly into share-price moves across market-cap segments. The most pronounced advances were concentrated in technology and biotech, though energy and financial-related headlines also affected several large-cap names.

Market participants looking for real-time developments should note that intraday price reactions reflect a mix of fundamental news and short-term trading flows. The list above captures a snapshot of those names that showed the largest percentage gains during the trading day.

Risks

  • Regulatory scrutiny - as noted in reports of SEC subpoenas tied to Bloom Energy - can introduce volatility for energy and industrial companies.
  • Trial-related updates - Moderna’s move followed trial results and upgrade, indicating that clinical outcomes remain a source of uncertainty for biotech valuations.
  • Analyst ratings and guidance changes - upgrades from brokerages can produce sharp short-term price moves that may not reflect longer-term fundamentals.

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