Stock Market Movers: AMD Leads Mega-Cap Gains, CAVA Tumbles in Mid-Caps

Wednesday’s stock market movers include AMD’s 5.63% surge on a new chip launch, UNH’s dividend boost, and CAVA’s 16.59% drop. See the full list of top gainers and losers across market caps.

Market Overview — A Day of Sector and Size-Based Divergence

Wednesday’s trading session brought significant shifts in stocks across multiple market caps. Tech names, healthcare giants, and select industrials led the upside, while certain retail and specialty stocks suffered steep declines.

Market sentiment reflected a blend of earnings-driven momentum, sector-specific catalysts, and investor positioning ahead of key macroeconomic updates.

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

The day’s biggest companies by market value delivered some of the most notable gains — with AMD stealing the spotlight.

Advanced Micro Devices (AMD) — +5.63%
AMD shares surged after unveiling its latest high-performance chip, designed to capture more share in AI and data center markets. Analysts see this launch as a competitive response to Nvidia, fueling bullish sentiment.

UnitedHealth Group (UNH) — +2.53%
Healthcare giant UNH announced a $2.21 per share dividend, reinforcing its commitment to shareholder returns. Dividend stability remains a key attraction for defensive investors.

Other Mega-Cap Highlights:

• Alibaba (BABA): +3.53%, buoyed by optimism in Chinese tech recovery.
• General Electric (GE): -2.95%, weighed down by industrial sector weakness.
• Merck & Co (MRK): +2.53%, healthcare demand remains resilient.
• IBM: +2.54%, steady enterprise demand in hybrid cloud solutions.
• Eli Lilly (LLY): +2.33%, continued momentum in weight-loss drug sales.

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

CoreWeave (CRWV) — -14.72%
Despite posting record Q2 revenue from AI demand, profit-taking and valuation concerns hit shares hard.

Venture Global Inc (VG) — +11.0%
Energy infrastructure firm surged after prevailing in an arbitration case against Shell, a legal victory seen as strengthening its contract position.

SailPoint Tech (SAIL) — +7.65%
JPMorgan upgraded SAIL to Overweight, citing leadership in identity security and strong enterprise adoption trends.

Other Notable Moves:

• Discovery Holding (WBD): +5.7%, content monetization optimism.
• Summit Therapeutics (SMMT): +6.56%, biotech sector momentum.
• BJ’s Wholesale (BJ): -5.42%, retail sector headwinds.
• Tempus AI (TEM): +5.79%, healthcare AI enthusiasm.
• Westlake Chemical (WLK): +3.63%, strong chemical demand trends.
• BeiGene (ONC): +4.12%, oncology pipeline developments.

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

CAVA Group (CAVA) — -16.59%
The sharpest drop of the day among mid-caps. Investors reacted to earnings and guidance concerns, triggering heavy selling.

Everus Construction (ECG) — +16.57%
Shares soared after earnings crushed estimates and management raised guidance for the full year.

Intapp (INTA) — +10.12%
Cloud-based software provider rallied as Q4 earnings beat expectations on robust recurring revenue growth.

Other Mid-Cap Highlights:

• Centrus Energy (LEU): -12.8%, convertible notes offering weighed on sentiment.
• CF Acquisition VI (RUMBW): +11.76%, speculative momentum.
• GlobalE Online (GLBE): -8.23%, despite revenue beat and guidance raise.
• Bloom Energy (BE): +8.77%, alternative energy optimism.
• H&R Block (HRB): -7.28%, earnings miss overshadowed revenue beat.
• Lemonade (LMND): +6.19%, insurtech momentum.
• Michael Kors Holdings (CPRI): +7.14%, retail rebound hopes.

Key Themes Driving Today’s Moves

Tech Innovation Fuels Gains
Chip launches (AMD) and AI adoption stories (SAIL, TEM) continue to dominate upside catalysts.

Legal and Contract Wins Matter
VG’s arbitration win and ECG’s guidance hike underscore the market impact of decisive business victories.

Valuation & Guidance Sensitivity
Names like CAVA and CRWV show that even strong revenue reports can’t offset valuation concerns or cautious forward guidance.

Investor Takeaways

• Mega-caps remain a safe haven for stability and dividend income, but innovation-led growth stories like AMD are outperforming.
• Large-caps offer targeted opportunities in niche leaders and legal win beneficiaries.
• Mid-caps carry volatility — both to the upside (ECG, INTA) and downside (CAVA, LEU).

As the market heads into the latter half of the week, earnings guidance and sector-specific catalysts are likely to keep volatility elevated across all market caps.