UNH, Sea Limited lead Tuesday’s market cap stock movers

Published 12/08/2025, 15:33
Updated 12/08/2025, 15:57
© Reuters.

Tuesday’s trading session is witnessing significant movements across various stock categories, with mega-cap and large-cap stocks like United Health Group (NYSE:UNH) and Sea Limited (NYSE:SE) experiencing notable intra-day changes. The day is marked by a mix of surges and dips as investors respond to the latest company news and market data. Here’s a look at some of the most impactful stock movers from the highest-valued companies to smaller market players.

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

- United Health Group (UNH): +3.31%; YTD returns plummet by -49.54%

- Goldman Sachs Group (NYSE:GS): +3.44%; showing a YTD positive return of 26.86%

- Morgan Stanley (NYSE:MS): +2.4%; with a solid YTD return of 16.94%

- Home Depot (NYSE:HD): +1.82%; modest YTD return of 0.88%

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

- Sea Limited (SE): +18.16%; YTD return climbs to 37.82%

- Tencent Music Entertainment Group (NYSE:TME): +10.46%; impressive YTD return of 102.44%

- New Providence Acquisition Corp N (ASTS): +14.29%; YTD return skyrockets to 117.63%

- Cardinal Health (NYSE:CAH): -9.46%; despite a strong YTD return of 34.78%

- On Holding (ONON): +8.64%; although facing a YTD return decline of -16.52%

- Figma Inc (FIG): +5.64%; with a YTD return decrease of -28.57%

- NIO Inc (NYSE:NIO): -7.91%; YTD return shows growth at 12.61%

- Yandex (NASDAQ:NBIS): +7.34%; an impressive YTD return of 153.57%

- United Continental (UAL): +7.49%; YTD return down by -8.0%

- ON Semiconductor (NASDAQ:ON): +7.58%; despite a YTD return drop of -25.3%

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

- GigCapital4 (BBAI): -26.41%; "BigBear.ai shares plummet after revenue miss and guidance cut"

- Mercury Computer (NASDAQ:MRCY): +17.56%; "Mercury Systems shares rise as Q4 results exceed expectations"

- ACV Auctions (ACVA): -17.3%

- Celanese (NYSE:CE): -12.29%; "Celanese shares plunge 11% as weak outlook overshadows Q2 beat"

- Resideo Tech (NYSE:REZI): +13.76%; "Morgan Stanley upgrades Resideo Technologies stock to Overweight on earnings potential"

- Pony Ai Inc (PONY): -11.19%

- Jyong Biotech (MENS): -8.49%

- IHS Holding (IHS): +7.42%; "IHS Towers falls over 4% despite strong Q2 results, raised outlook"

- American Airlines Group (NASDAQ:AAL): +7.82%

- Xenon Pharmaceuticals (NASDAQ:XENE): +8.24%; "Xenon Pharmaceuticals jumps after massive earnings beat"

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

- KBL Merger IV (ATNF): +58.98%; "180 Life Sciences holds 82,186 ETH valued at $349 million"

- Hanesbrands (NYSE:HBI): +22.98%; "Gildan Is Said To Weigh Hanesbrands (HBI) Offer At About $6/Sh - Bloomberg"

- Alcobra Ltd (NASDAQ:ARCT): +28.8%; "Arcturus Therapeutics shares edge higher despite earnings miss in Q2"

- Lightbridge Corp (LTBR): +24.67%; "Lightbridge and Oklo to explore co-located nuclear fuel facility"

- Inflection Point Acquisition II (USAR): +22.41%; "USA Rare Earth signs MOU with Enduro for neo magnet supply"

- Pubmatic Inc (NASDAQ:PUBM): -23.16%; "B.Riley downgrades PubMatic stock to Neutral on DSP partner issues"

- Ondas (ONDS): +21.72%

- Green Dot Corp (NYSE:GDOT): +29.41%; "Green Dot stock soars 21% following Q2 beat and raise"

- Eastman Kod (NYSE:KODK): -25.96%; "Eastman Kodak shares tumble as Q2 earnings swing to loss"

- Tuscan Holdings Corp (MVST): -24.26%; "Microvast shares tumble as revenue misses estimates despite profit beat"

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