UnitedHealth, Duolingo Lead Market Cap Stock Movers on Monday

Published 18/08/2025, 19:08
© Reuters.

Monday’s trading session is showcasing significant movements in stocks across different market capitalizations, with mega-cap UnitedHealth Group (NYSE:UNH) and large-cap Duolingo (NASDAQ:DUOL) standing out among the movers. Here’s a look at some of the most notable stock performances today, from the largest companies to smaller players, as they unfold intra-day.

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

  • UnitedHealth Group (UNH): +2.64%
  • Palantir Technologies Inc (NASDAQ:PLTR): -2.71%
  • Facebook Inc (NASDAQ:META): -2.42%

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

  • Duolingo (DUOL); KeyBanc upgraded to Overweight: +12.27%
  • First Solar Inc (NASDAQ:FSLR): +9.43%
  • Bullish Inc (BLSH): -7.6%
  • Trade Desk Inc (NASDAQ:TTD): +5.9%
  • MongoDB (NASDAQ:MDB): +5.68%
  • EQT Corporation (NYSE:EQT (ST:EQTAB)): -4.83%
  • Joby Aviation (NYSE:JOBY): -5.03%
  • Celsius Holdings (NASDAQ:CELH): +4.52%
  • Royal Caribbean (NYSE:RCL): +4.39%
  • Jbs NV (JBS): +4.44%

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

  • Ceridian HCM Holding Inc (NYSE:DAY): +27.1%
  • Good Works Acquisition (CIFR): +16.51%
  • Applied Blockchain (APLD); to break ground on $3B AI data center: +14.12%
  • Ikonics Corp (WULF); Fluidstack expands TeraWulf data center lease: +11.65%
  • Kindly MD (NAKA): -11.85%
  • Nextracker (NXT): +11.31%
  • Alvotech (ALVO): +9.53%
  • Colonnade Acquisition (OUST); 184.12% YTD return: -9.1%
  • Venaxis (NASDAQ:RIOT): +7.81%

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

  • Goodrx Holdings Inc (GDRX); offers Ozempic and Wegovy at $499 monthly: +40.16%
  • Xunlei Ltd Adr (XNET): +30.83%
  • Huami Inc (ZEPP): +26.03%
  • Know Labs NYQ (USBC): -23.69%
  • Volcon (EMPD); Empery Digital secures $25M for share repurchases: -21.28%
  • Tonix Pharm (NASDAQ:TNXP): -20.73%
  • Applied Opt (NASDAQ:AAOI): +17.75%
  • IQIYI Inc (NASDAQ:IQ): +15.58%
  • Zhihu ADR (ZH): +16.75%
  • Membership Collective Group (SHCO): +15.31%

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This article was generated with the support of AI and reviewed by an editor. For more information see our T&C.

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