Synopsys will hold a conference call for financial analysts and investors today at 2:00 p.m. Pacific Time. A live webcast of the call will be available at Synopsys' corporate website at www.synopsys.com. A recording of the call will be available by calling +1-800-475-6701 (+1-320-365-3844 for international callers), access code 308548 beginning at 4:00 p.m. Pacific Time today. A webcast replay will also be available on the website from approximately 5:30 p.m. Pacific Time today through the time Synopsys announces its results for the first quarter fiscal 2014 in February 2014. Synopsys will post copies of the prepared remarks of Aart de Geus, chairman and co-chief executive officer, and Brian Beattie, chief financial officer, on its website following the call. In addition, Synopsys makes additional financial information available in a financial supplement also posted on the corporate website.

Effectiveness of Information

The targets included in this release, the statements made during the earnings conference call and the information contained in the financial supplement (available in the Investor Relations section of Synopsys' website at www.synopsys.com) represent Synopsys' expectations and beliefs as of the date of this release only. Although this press release, copies of the prepared remarks of the co-chief executive officer and chief financial officer made during the call and the financial supplement will remain available on Synopsys' website through the date of the first quarter fiscal year 2014 earnings call in February 2014, their continued availability through such date does not mean that Synopsys is reaffirming or confirming their continued validity. Synopsys does not currently intend to report on its progress during the first quarter of fiscal 2014 or comment to analysts or investors on, or otherwise update, the targets given in this earnings release.

Availability of Final Financial Statements

Synopsys will include final financial statements for the fourth quarter and fiscal 2013 in its annual report on Form 10-K to be filed by January 2, 2014.

About Synopsys

Synopsys, Inc. (Nasdaq: SNPS) accelerates innovation in the global electronics market. As a leader in electronic design automation (EDA) and semiconductor IP, its software, IP and services help engineers address their design, verification, system and manufacturing challenges. Since 1986, engineers around the world have been using Synopsys technology to design and create billions of chips and systems. Learn more at http://www.synopsys.com.

Forward-Looking Statements

The statements made in this press release regarding projected financial results in the sections entitled "Financial Targets," and "Reconciliation of Target Non-GAAP Operating Results," and certain other statements, including statements regarding customer demand for our technology and predictable business model, are forward-looking statements within the meaning of the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934. In addition, certain statements made in the earnings conference call are forward-looking statements within the meaning of the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934. Actual results could differ materially from those described by these statements due to a number of uncertainties, including, but not limited to:

• continued uncertainty in the global economy and its potential impact on the semiconductor and electronics industries;
• uncertainty in the growth of the semiconductor and electronics industry;
• increased competition in the market for Synopsys' products and services including through consolidation in the industry and among our customers;
• changes in demand for Synopsys' products due to fluctuations in demand for its customers' products;
• Synopsys' ability to realize the potential financial or strategic benefits of acquisitions it completes and the difficulties in the integration of the products and operations of acquired companies or assets into Synopsys' products and operations, including delays in customer orders, potential loss of customers, key employees, partners or vendors, customer demand and support obligations for product offerings, and disruption of ongoing business operations and diversion of management attention;
• adverse changes in the relationships between Synopsys and key participants in the complex semiconductor ecosystem, including major foundries and intellectual property providers;
• litigation;
• lower-than-anticipated new IC design starts;
• lower-than-anticipated purchases or delays in purchases of products or consulting services by Synopsys' customers, including delays in the renewal, or non-renewal, of Synopsys' license arrangements with major customers;
• changes in the mix of time-based licenses and upfront licenses;
• lower-than-expected orders; and
• failure of customers to pay license fees as scheduled.

In addition, Synopsys' actual expenses, earnings per share and tax rate on a GAAP and non-GAAP basis for the fiscal quarter ending January 31, 2014; actual expenses, earnings per share, tax rate, and other projections on a GAAP and non-GAAP basis for fiscal year 2014; and cash flow from operations on a GAAP basis for fiscal year 2014 could differ materially from the targets stated under "Financial Targets" above for a number of reasons, including, but not limited to, (i) integration and other acquisition-related costs, (ii) application of the actual consolidated GAAP and non-GAAP tax rates for such periods, or judgment by management, based upon the status of pending audits and settlements to increase or decrease an income tax asset or liability, (iii) a determination by Synopsys that any portion of its goodwill or intangible assets have become impaired, (iv) changes in the anticipated amount of employee stock-based compensation expense recognized in Synopsys' financial statements, (v) actual change in the fair value of Synopsys' non-qualified deferred compensation plan obligations, (vi) increases or decreases to estimated capital expenditures, (vii) changes driven by new accounting rules, regulations, interpretations or guidance, (viii) fluctuations in foreign currency exchange rates, (ix) general economic conditions, and (x) other risks as detailed in Synopsys' SEC filings, including those described in the "Risk Factors" section in its latest Quarterly Report on Form 10-Q for the fiscal quarter ended July 31, 2013. Furthermore, Synopsys' actual tax rates applied to income for the first quarter and fiscal year 2014 could differ from the targets given in this press release as a result of a number of factors, including the actual geographic mix of revenue during the quarter and year, and actions by the government.

Finally, Synopsys' targets for outstanding shares in the first quarter and fiscal year 2014 could differ from the targets given in this press release as a result of higher than expected employee stock plan issuances or stock option exercises, acquisitions, and the extent of Synopsys' stock repurchase activity.

Synopsys is under no obligation to (and expressly disclaims any such obligation to) update or alter any of the forward-looking statements made in this earnings release, the conference call or the financial supplement whether as a result of new information, future events or otherwise, unless otherwise required by law.

INVESTOR CONTACT:
Lisa L. Ewbank
Synopsys, Inc.
650-584-1901

EDITORIAL CONTACT:
Yvette Huygen
Synopsys, Inc.
650-584-4547
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