Stock Repurchase Program	12 Months Ended
Dec. 31, 2014
Stock Repurchase Program	R. STOCK REPURCHASE PROGRAM In November 2010, the Board authorized a stock repurchase program for up to $200 million. In the years ended December 31, 2014, 2013 and 2012, Teradyne did not repurchase any shares. The cumulative repurchases under the 2010 program as of December 31, 2014 totaled 2.6 million shares of common stock for $31.2 million at an average price of $11.84. In January 2015, the Board of Directors cancelled the 2010 stock repurchase program.

Stock Repurchase Program

12 Months Ended

Dec. 31, 2014

R. STOCK REPURCHASE PROGRAM

In November 2010, the Board authorized a stock repurchase program for up to $200 million. In the years ended December 31, 2014, 2013 and 2012, Teradyne did not repurchase any shares. The cumulative repurchases under the 2010 program as of December 31, 2014 totaled 2.6 million shares of common stock for $31.2 million at an average price of $11.84. In January 2015, the Board of Directors cancelled the 2010 stock repurchase program.