Markets moved unevenly on Thursday as headlines and company-specific reports drove significant intraday swings. Large-cap semiconductor and technology names registered meaningful losses, while some firms from the streaming, payments and consumer sectors climbed. Below are the most prominent movers grouped by market-cap tier.
Mega-Cap Movers (Market Cap: $200 billion and above)
Thursday trading saw several giants in chips and technology give back ground. Reuters reported that Deepseek withheld its latest AI model from U.S. chipmakers including Nvidia, and Nvidia (NVDA) fell 5.3% on the session. Broadcom-related news that it shipped its first 2nm custom compute chip on a 3.5D platform coincided with Avago Technologies (AVGO) sliding 5.89%. Other large-cap technology and semiconductor names recorded declines: Lam Research Corp (LRCX) -5.45%, Applied Materials Inc (AMAT) -5.16%, Advanced Micro Devices (AMD) -3.7%, Alibaba-exch (BABA) -3.57%, Intel Corp (INTC) -2.97%, Micron Technology (MU) -2.86%. Shares of Tesla Motors (TSLA) dropped 2.43% in the group. Not all mega-caps were lower; Netflix, Inc. (NFLX) rose 2.84%.
Large-Cap Stock Movers (Market Cap: $10-$200 billion)
At the large-cap level, a mix of strong gains and steep falls appeared. IonQ surged after reporting a revenue beat and raising its 2026 outlook, with dMY Technology Group III (IONQ) jumping 22.16%. Bentley Systems Inc (BSY) climbed 11.21%, and Viacom Cl B (PSKY) added 9.65%. On the downside, BeiGene (ONC) lost 9.51%, Credo Technology Holding (CRDO) fell 9.12%, and several mid-to-large healthcare and industrial names were lower: Universal Health Services (UHS) -10.68%, Donaldson Company Inc (DCI) -11.28%, Heico Corp (HEI) -11.18%. Storage and communications software names also retreated: Pure Storage Inc (PSTG) -12.3%, Zoom Video Communications (ZM) -13.87%.
Mid-Cap Stock Movers (Market Cap: $2-$10 billion)
Mid-cap activity included notable upside tied to guidance and quarterly results. Sezzle Inc PK (SEZL) climbed 29.41% after raising profit guidance. LeMaitre Vascular Inc (LMAT) rose 20.31%. Frontdoor (FTDR) beat Q4 estimates yet issued guidance below expectations and still finished up 16.31% on the day. Warby Parker (WRBY) added 15.07%. Significant declines were seen among other mid-caps: Walker & Dunlop Inc (WD) -15.97%, Chemed Corp (CHE) -15.99%, Fs Investmt (FSK) -15.5%, Shift4 Payments Inc (FOUR) -15.22%, ACM Research Inc (ACMR) -19.19% after shipping cleaning systems to a Singapore foundry, and B Riley Principal Merger II (EOSE) -36.66%.
Small-Cap Stock Movers (Market Cap: $300 million-$2 billion)
Smaller-cap names produced some of the largest percentage moves. Longview Acquisition (BFLY) gained 40.48%, Rackspace Technology Inc (RXT) rose 37.41%, and Ibotta (IBTA) added 33.05%. Krispy Kreme (DNUT) surged 31.27% following an earnings beat and commentary on turnaround progress. Other strong performers included AEABridges Impact (LVWR) +27.67% and GigaCloud Technology (GCT) +28.98%. Conversely, a number of small caps plunged: Braiin (BRAI) -29.17%, UniQure NV (QURE) -32.77%, Energy Recovery (ERII) -33.13%, and Array Technologies Inc (ARRY) -34.77%.
Thursday's session illustrates how headline news tied to AI model access, chip shipments and company-specific earnings or guidance updates can produce broad sector moves, particularly within semiconductors and technology, but also in payments, consumer and healthcare-related names. Market participants met a mix of fundamental updates with rapid re-pricing across market-cap tiers.