Synopsys, Inc. (NASDAQ: SNPS), a world leader in semiconductor design software, today announced it will report results for its fourth quarter and fiscal year 2006 on Wednesday, November 29, 2006 after the market closes.

A conference call to review the results will begin at 2 p.m. PST (5 p.m. EST) and will be hosted by Aart de Geus, chairman and chief executive officer, and Brian Beattie, chief financial officer.

Financial and other statistical information to be discussed on this conference call will be available on the corporate website at http://www.synopsys.com/corporate/invest/invest.html immediately before the call. A live webcast will also be available on this site. Participants should access the live webcast at least 10 minutes prior to the start time. A webcast replay can be accessed on the corporate web site beginning Wednesday, November 29, 2006 at approximately 5:30 p.m. PST. The replay will remain available until Synopsys announces its first quarter earnings results in February, 2007. In addition, a dial-up replay of the conference call will be available beginning November 29, 2006 at 5:30 p.m. PST and ending on December 13, 2006. The replay telephone number is USA (800) 475-6701, International (320) 365-3844, Access Code: 847573.

About Synopsys

Synopsys, Inc. (NASDAQ: SNPS) is a world leader in electronic design automation (EDA) software for semiconductor design. The company delivers technology-leading semiconductor design and verification platforms and IC manufacturing software products to the global electronics market, enabling the development and production of complex systems-on-chips (SoCs). Synopsys also provides intellectual property and design services to simplify the design process and accelerate time-to-market for its customers. Synopsys is headquartered in Mountain View, California and has offices in more than 60 locations throughout North America, Europe, Japan and Asia. Visit Synopsys online at http://www.synopsys.com/ .

NOTE: Synopsys is a registered trademark of Synopsys, Inc. All other trademarks mentioned in this release are the intellectual property of their respective owners.

Contact: Investors, Roberta Reid of Synopsys, Inc., +1-650-584-1901.

SOURCE: Synopsys, Inc.

CONTACT: Investors, Roberta Reid of Synopsys, Inc., +1-650-584-1901

Web site: http://www.synopsys.com/