Synopsys' fiscal Q4 2026 Design Automation revenue (ending October 31) sits amid strong AI-driven demand for electronic design automation (EDA) tools and simulation software. Q3 results showed Design Automation at $2.003 billion (80.9% of total revenue), with the segment posting 52.7% year-over-year growth boosted by the Ansys acquisition and double-digit organic EDA momentum. Management guided total Q4 revenue of $2.53–2.58 billion and expects continued double-digit organic EDA expansion, supported by the late-September OpenAI partnership for GPT-Synopsys (an AI model for chip design) and a major Amazon custom-silicon IP agreement. Analyst consensus for total Q4 revenue trails company guidance at around $2.42 billion, while upcoming earnings will resolve the outcome amid concentrated customer spending and export-control risks.