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Chip Design Software Stocks Surge After US Lifts Export Curbs on China

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Shares of major chip design software companies Synopsys and Cadence Design Systems rose sharply on Thursday following the U.S. government’s decision to lift export restrictions on chip design software exports to China, alleviating market uncertainties and preserving access to a critical revenue source.

Market Impact

  • The restrictions, introduced in late May, had cut off over 10% of revenue for these companies, negatively impacting forecasts and share prices.

  • Analysts from Mizuho noted the export resumption will limit revenue loss to just one month in the current quarter.

  • The easing of trade tensions could facilitate China’s approval of Synopsys’s $35 billion acquisition of engineering software firm Ansys, a deal pending regulatory clearance primarily in China.

Stock Movements

  • Synopsys shares rose 5.5%, despite ongoing assessments of export curbs’ financial impacts.

  • Cadence Design Systems surged 6.1%, reaching a record high of $330.09.

  • Ansys gained around 3.5%, while Germany’s Siemens, another key player in electronic design automation (EDA), rose 1.5%.

Expert Insights and Context

  • Susannah Streeter of Hargreaves Lansdown described the move as “a distinct warming of relations and a small ceasefire in the chips war.”

  • However, she cautioned that it does not represent a broad easing of restrictions on high-end chip exports, especially from companies like Nvidia.

  • U.S. concerns persist over China’s technological advancements and potential military applications of American chip technology.

  • The curbs have driven increased domestic chip design efforts in China, supported by state subsidies, raising fears of retaliatory actions that could affect regulatory decisions like the Synopsys-Ansys deal.

Deal Deadline

  • The Synopsys-Ansys merger has been cleared in all jurisdictions except China, with a closure deadline of July 15 and an option to extend to January next year.

U.S. Eases Chip Software and Ethane Export Curbs Amid China Trade Truce

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The United States has lifted export restrictions on chip design software and ethane to China, signaling further de-escalation of trade tensions between the world’s two largest economies. The move follows Beijing’s agreement to ease controls on rare earth exports—a key concession that helped maintain a fragile trade truce.

Restrictions Reversed

Leading electronic design automation (EDA) software firms—Synopsys, Cadence Design Systems, and Siemens—confirmed they are resuming sales and support for Chinese customers after receiving notification from the U.S. Department of Commerce that prior restrictions have been revoked.

  • Siemens announced Thursday it has restarted business operations in China, causing its shares to rise 1.7% after market opening.

  • Synopsys said it plans to restore customer access within three business days.

The EDA tools, essential for advanced semiconductor design, are dominated by these three firms, which together control over 70% of China’s market, according to Xinhua.

Ethane Export Curbs Also Rescinded

On the same day, the U.S. government also notified ethane producers that licensing requirements imposed in May and June had been withdrawn, allowing resumption of exports to China.

These curbs had been part of a broader U.S. response to China’s April suspension of rare earth exports, which had disrupted global supply chains for automakers, aerospace firms, chipmakers, and military contractors.

The Bigger Picture: Rare Earths for Rollbacks

According to a source familiar with the internal U.S. strategy, the Biden administration took a calculated step:

“The U.S. have escalated to de-escalate. They put restrictions on many more items in order to get the Chinese to back off on rare earths.”

Following negotiations, both sides reportedly confirmed a framework agreement in which:

  • China will review export applications for sensitive goods,

  • And the U.S. will roll back countermeasures imposed earlier this year.

China’s Commerce Ministry affirmed the arrangement last Friday, paving the way for what analysts describe as a return to February-March status quo.

Remaining Uncertainties

Despite the rollback on EDA tools and ethane, it remains unclear whether the U.S. has also lifted other strategic restrictions, including:

  • GE Aerospace’s license suspension for jet engine exports to COMAC’s C919 aircraft,

  • Or limitations on nuclear equipment suppliers selling to Chinese power plants.

The U.S. Department of Commerce has not yet commented on the latest developments.

Outlook

With both countries aiming to stabilize economic relations amid broader geopolitical tensions, more trade rollbacks could follow—particularly if the framework agreement holds. However, sector-specific restrictions tied to national security concerns are likely to remain or evolve in other forms.

Cadence Unveils Nvidia-Based Supercomputer to Accelerate Engineering and Biotech Design

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Cadence Design Systems (CDNS.O) unveiled a powerful new supercomputer on Wednesday, built with Nvidia’s latest Blackwell GPUs, to dramatically speed up complex simulations in chip design, aerospace, and biotech research. The Millennium M2000, Cadence’s newest system, represents a major leap forward as the company expands beyond traditional chip design into engineering, drug discovery, and system modeling.

Key Details:

  • Millennium M2000 Supercomputer

    • Powered by ~32 Nvidia Blackwell GPUs

    • Target price: ~$2 million per unit

    • Dramatic simulation improvements: e.g., 8-day CPU job completed in <24 hours

    • Builds on Cadence’s 2023 system, now covering a broader software suite

“There’s this insatiable need for faster simulation,” said Michael Jackson, VP at Cadence, noting its use with Boeing to analyze turbulence around parts of a 777 jet.

Strategic Use Cases:

  • Aerospace: Assisting Boom Supersonic and Boeing in aircraft design

  • Biotech: Partnering with Treeline Biosciences for molecule simulation

  • Semiconductors: Continuing its core work with clients like Apple for chip design

Industry Impact:

At a Santa Clara event, Nvidia CEO Jensen Huang announced Nvidia will purchase 10 M2000 systems for its internal chip and AI data center development.

“This is a big deal for us… We’ll speed it up 50, 60, 100 times,” Huang said.

Cadence’s move to GPU-optimized computing is a major milestone in engineering software, shifting away from older CPU-centric architectures to embrace AI-powered, accelerated computing, ensuring faster innovation cycles in science and hardware design.