Thursday’s trading session produced wide-ranging moves across the market-cap spectrum. Positive headlines and company-specific developments propelled a handful of names higher, while guidance concerns, downgrades and event-driven news pushed others lower.
Mega-cap movers (Market Cap: $200B+)
- Qualcomm Inc (QCOM) - +6.47%
- Arm (ARM) - -10.24%
- GE Vernova LLC (GEV) - -5.26%
- Applied Matls Inc (AMAT) - -3.9%
- Lam Research Corp (LRCX) - -3.41%
- Adv Micro Device (AMD) - -3.24%
- Micron Tech (MU) - -2.91%
- Caterpillar (CAT) - -3.21%
- Kla-tencor Corp (KLAC) - -2.97%
Large-cap movers (Market Cap: $10B-$200B)
- Datadog Inc (DDOG) - Datadog achieves FedRAMP High security certification; +27.85%
- SiTime Corporation (SITM) - Barclays upgrades SiTime on data center growth; +25.62%
- Fortinet (FTNT) - Fortinet surges 18% on strong Q1 results, raised guidance; +18.53%
- Insmed (INSM) - Insmed falls as investors focus on guidance despite a Q1 beat; -21.71%
- Zoetis Inc (ZTS) - Zoetis shares tumble on weak guidance and earnings miss; -20.68%
- Coca-Cola Bottlin (COKE) - -16.3%
- Applied Opt (AAOI) - -12.22%
- Hut 8 Mining PK (HUT) - -9.86%
- dMY Technology Group III (IONQ) - IonQ falls despite beating revenue estimates by 30%; -10.23%
- CenturyLink (LUMN) - -11.12%
Mid-cap movers (Market Cap: $2B-$10B)
- Xometry (XMTR) - +43.58%
- AAON (AAON) - AAON soars 27% on earnings beat and raised guidance; +34.79%
- Himax Tech (HIMX) - +33.33%
- HawkEye 360 Inc (HAWK) - +30.79%
- Fastly Inc (FSLY) - Fastly shares tumble 22% despite topping Q1 estimates; -40.92%
- Planet Fitness Inc (PLNT) - William Blair downgrades Planet Fitness on slower growth; -31.99%
- Roman DBDR Tech Acquisition (GPGI) - -28.87%
- Shake Shack Inc (SHAK) - Shake Shack names Michelle Hook as chief financial officer; -29.22%
- Amprius Tech (AMPX) - -25.87%
- Instld Buld (IBP) - -26.68%
Small-cap movers (Market Cap: $300M-$2B)
- agilon health (AGL) - Jefferies upgrades agilon health on rate visibility; +122.16%
- Rackspace Technology Inc (RXT) - +74.83%
- Fluence Energy (FLNC) - Fluence Energy soars 32% on strong backlog, guidance; +37.09%
- Cross Country (CCRN) - Knox Lane to acquire Cross Country Healthcare for $437 million; +29.38%
- Ethos Technologies Inc (LIFE) - +30.0%
- Bobs Discount Furniture Inc (BOBS) - Bob’s Discount Furniture beats estimates; +26.8%
- Entrada Therapeutics (TRDA) - Entrada to report phase 1/2 trial data Thursday; -56.77%
- iShares Industrials Sector Bond (ENGN) - -80.28%
- Alpha and Omega (AOSL) - -26.88%
- Amplify Snack Brands Inc (BETR) - -26.68%
Across market-cap tiers the drivers cited in company filings, analyst actions and corporate announcements varied. Security certification news helped lift Datadog, targeted analyst upgrades supported names such as SiTime and agilon health, and earnings beats with accompanying guidance changes moved AAON and Fortinet. Conversely, guidance-related investor concerns and downgrades were notable catalysts for declines at companies including Insmed, Zoetis and Planet Fitness. Several companies moved sharply on event-driven items such as M&A terms and trial data schedules.
This intraday picture highlights the influence of discrete company developments on stock performance, from large-cap technology and semiconductor names to smaller companies in healthcare and industrial services.