Synopsys to Buy Viewlogic for $497 Million

Synopsys Inc. agreed to buy Viewlogic Systems Inc. for about $497 million in stock, combining makers of software that simplifies computer chip design. Synopsys will offer 0.6521 share for each share of Viewlogic. The transaction values Viewlogic at $28 a share, or 24% more than its closing share price Tuesday of $22.50. The acquisition would give Mountain View-based Synopsys so-called system-in-a-chip technology, which lets chip makers consolidate the functions of many computer components in a single chip. Synopsys shares fell $3.13 to close at $39.81 on Nasdaq. Viewlogic shares rose $2.69 to close at $25.19, also on Nasdaq. Marlboro, Mass.-based Viewlogic had an average of 17.75 million shares outstanding during the second quarter.