New York, January 7, 2026, 19:36 (EST) — After-hours
Synopsys, Inc. shares rose in after-hours trading on Wednesday, tracking a renewed bid for AI-linked technology names and fresh attention on the chip-design software maker’s automotive pitch at CES. Synopsys was up 2.2% at $519.70, after trading between $506.13 and $521.43 during the session; rival Cadence Design Systems gained 1.8%.
Synopsys on Tuesday laid out new automotive engineering tools and partnerships at CES 2026, including updates tied to sensor simulation and its “Virtualizer” developer kits — software packages that let engineers build and test code on virtual chips before the hardware exists. The company said the kits can help bring up systems within days of silicon availability and cut vehicle time-to-market by up to 12 months, and flagged work with the FIA and the addition of Samsung’s ISOCELL Auto 1H1 image sensor in Ansys AVxcelerate Sensors. “The rise of software-defined mobility and the introduction of AI into the car necessitate a foundational shift,” Synopsys executive Ravi Subramanian said. Synopsys News Releases
The timing matters because investors have started rotating back into big AI trades after recent valuation jitters, lifting parts of the technology complex even as the broader S&P 500 slipped. “Rumors that the AI trade was done turned out not to be true,” said Jake Dollarhide, chief executive of Longbow Asset Management. Reuters
Synopsys has been pushing harder into system-level simulation alongside its core electronic design automation tools, which chipmakers use to design and verify semiconductors. It completed its acquisition of Ansys in July 2025, adding simulation and analysis software to the portfolio.
Partner announcements have been landing around the same CES window. Automotive AI chip startup SiMa.ai said it had delivered a first integrated capability with Synopsys that it described as a “blueprint” for earlier virtual software work on automotive system-on-chip designs — the industry’s “shift left” push to do more development before silicon is built. PR Newswire
There is legal noise in the background. A securities class action accusing Synopsys and top executives of misleading investors is pending in U.S. federal court in Northern California, according to the case docket.
Still, CES-stage partnerships do not always translate quickly into revenue, and automotive programs can stretch over long design cycles. Any sign that customers are demanding more costly customization — or that spending on chip tools is cooling — could test the stock’s move.
Next up, traders will watch management’s next scheduled public appearance: Synopsys is due to present at the Needham Growth Conference on Jan. 15, according to its investor relations events calendar.
