Exhibit II

to

Schedule 13G

Joint Filing Agreement

The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G dated February 14, 2019 in connection with their beneficial ownership of Teradyne Inc. Columbia Management Investment Advisers, LLC authorizes Ameriprise Financial, Inc. to execute the Schedule 13G to which this Exhibit is attached and make any necessary amendments thereto.

Ameriprise Financial, Inc.

By:	/s/ Amy K. Johnson
	Amy K. Johnson
Title:	Senior Vice President and Chief Operating
	Officer-Asset Management

Columbia Management Investment Advisers, LLC

By:	/s/ Amy K. Johnson
	Amy K. Johnson
Title:	Managing Director and Global Head of Operations