Teradyne Inc. shares rose in the extended session Wednesday after the industrial test equipment maker's quarterly results and outlook topped Wall Street estimates. Teradyne shares surged 6.7% to $23.50 after hours. The company reported adjusted earnings of 33 cents a share on revenue of $410.5 million. Analysts surveyed by FactSet had estimated 28 cents a share on revenue of $400.5 million. Teradyne expects adjusted earnings of 18 cents to 25 cents a share on revenue of $330 million to $360 million in the fourth quarter. Analysts had estimated 13 cents a share on revenue of $324.6 million.
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