Stocks making the biggest moves premarket: Nvidia, Arm, Taylor Morrison, Qualcomm & more
Premarket movers included Nvidia, which rose about 2% after announcing a new PC processor in collaboration with Microsoft; Microsoft gained nearly 4%. Dell (+1.5%), HP (+3.5%) and Arm (+14.5%) also jumped, while chip rivals fell: Qualcomm (-9.5%), Intel (-6.5%) and AMD (-4%). Taylor Morrison surged ~23% on Berkshire’s $6.8B acquisition deal. IBM jumped ~13% after Barclays started coverage; other software names rose, while Robinhood (-3%) and Coinbase (-2%) fell as Bitcoin dropped below $73,000.

Near-term sentiment tailwind for Nvidia’s PC-CPU roadmap; watch for follow-through vs. competitors’ downside.
Nvidia and Microsoft revealed a new PC processor, driving a ~2% premarket jump and reshaping chip-sector expectations.
Bullish bias for the open, with volatility tied to PC demand/read-through.
Background
The article is a premarket ‘biggest movers’ roundup tying each move to a specific catalyst: Nvidia/Microsoft PC processor news; Berkshire’s acquisition of Taylor Morrison; Bloomberg-reported Pizza Hut sale talks; a Summit Therapeutics phase 3 China datapoint; Barclays initiating IBM coverage; IGV-led software rally; and BTC weakness pressuring Robinhood/Coinbase.
Why it matters
Overall, the tape is being driven by (1) a new PC processor announcement causing immediate semis read-across, (2) a confirmed M&A deal for TMHC, (3) biotech efficacy headline risk-on, (4) analyst-coverage momentum for IBM, and (5) crypto beta weakness for HOOD/COIN.
Market relevance
High near-term tradability due to multiple concrete, time-sensitive catalysts (chip announcement, confirmed M&A, clinical efficacy datapoint, coverage initiation, and BTC level break).
Market effects
PC-processor announcement drives cross-CPU read-through (Arm up sharply; Intel/QCOM/AMD down) and supports broader software momentum via IGV strength.
Primarily US-listed tape reaction; biotech trial is China-based but impacts US biotech sentiment.
Chip and quantum narratives have global supply-chain and compute-cycle implications; crypto move reflects global BTC pricing.
Alternative perspectives
Competitor declines may overstate competitive displacement; the Nvidia chip’s real market share and timing could be slower than the premarket reaction implies.
Software ETF strength (IGV) may be flow-driven rather than fundamentals; crypto-linked names may rebound quickly if BTC stabilizes above $73k.
Key entities
- companyNvidia
Announced a new PC processor in collaboration with Microsoft, triggering broad premarket read-across across chip suppliers and competitors.
- companyBerkshire Hathaway
Agreed to acquire Taylor Morrison for $6.8B, driving a major premarket surge in TMHC.
- companySummit Therapeutics
Reported late-stage Chinese trial results showing a 34% reduced risk of death for its lung cancer drug.
- companyYum Brands
Reportedly in talks to sell Pizza Hut brand to LongRange Capital, supporting a premarket pop.
- companyIBM
Barclays initiated coverage at overweight, contributing to a large premarket jump.



