Market

October 6, U.S. stocks opened on a firm footing as investors digested upbeat tech sentiment and stable Treasury yields. The Dow Jones rose 0.4%, the S&P 500 advanced 0.5% and the tech-heavy Nasdaq outperformed with a 0.7% pop, reflecting renewed risk appetite after a calm bond market and optimism around AI-driven growth.

NVIDIA climbs 1.8% after unveiling a new data-center GPU roadmap, while Advanced Micro Devices adds 2.5% on strong channel checks. Alphabet edges 0.1% lower amid renewed antitrust scrutiny, and Tesla Motors inches up 0.2% as it prepares to roll out its updated Model Y. Constellation Energy Corp surges 11.5% on a bullish margin outlook, Vistra Energy Corp gains 4.8% after announcing a capacity expansion, and Applied Optoelectronics rallies 5.9% on upbeat fiber-optic demand. Western Digital falls 3.2% following a downgrade on pricing concerns, while Seagate Technology PLC slides 3.3% after shipping-growth warnings.

Among other active names, Shengfeng Development Limited spikes 6.4% on heavy retail buying, Bloom Energy Corp adds 2.8% with clean-tech peers, Zai Lab Ltd rises 4.1% on positive drug-trial data, Silicon Motion Technology climbs 1.4% after takeover speculation, and Freight Technologies, Inc. soars 156.2% on a strategic partnership. On the downside, Reto Eco-solutions Inc. tumbles 13.6% after a weak revenue forecast, Intchains Group Ltd. sinks 5.3%, and GigaMedia drops 5.5% on thin volumes.

News

NVIDIA unveils next-gen AI GPU roadmap, shares rise 1.8%. The chipmaker highlighted faster HBM4 memory integration and earlier release timelines, reinforcing its data-center leadership and boosting semiconductor sentiment at the open.

Constellation Energy Corp lifts earnings outlook, stock jumps 11.5%. Management cited surging power prices and tax credits for nuclear generation, prompting analysts to raise price targets and sending utility shares higher.

Applied Optoelectronics wins major cloud-data contract, shares soar 5.9%. The deal could double annual revenue from its data-center segment, according to company estimates released pre-market.

Vistra Energy Corp announces 2 GW battery project, up 4.8%. The Texas-based utility said the expansion will make it one of the largest energy-storage operators, capitalizing on growing electricity demand.

Bloom Energy Corp secures $400 million fuel-cell order, up 2.8%. The agreement with a Fortune 100 customer extends through 2028 and is expected to lift annual backlog by 15%.

Alphabet faces new DOJ filing in search antitrust suit, shares dip 0.1%. Prosecutors allege additional evidence of monopolistic bundling practices, raising headline risk for the tech giant.

Western Digital downgraded on pricing headwinds, stock falls 3.2%. A major broker cited softer NAND demand and competitive pressures, cutting its rating to “underperform.”

Seagate Technology PLC issues weaker shipment guidance, down 3.3%. Management warned of slower enterprise demand, prompting investors to question the HDD maker’s rebound timeline.

Tesla Motors readies refreshed Model Y launch, edges up 0.2%. Production lines in Austin and Shanghai are undergoing upgrades, with deliveries expected to begin next month and improve margins.

Zai Lab Ltd reports positive Phase 3 oncology data, stock up 4.1%. The experimental therapy met primary endpoints in gastric cancer, paving the way for regulatory submission in the U.S.