This article was automatically generated by Dow Jones using technology from Automated Insights.

Shares of Teradyne Inc. tumbled 13.3% to $329.20 on what proved to be an all-around rough trading session for the stock market, with the S&P 500 Index falling 0.5% to 7,619.98 and Dow Jones Industrial Average falling 0.3% to 52,421.20.

Teradyne Inc. closed 32.5% below its 52-week high of $487.91, which the company achieved on June 30th.

The stock underperformed when compared to some of its peers, as Keysight Technologies Inc. fell 7.0% to $314.96, Fortive Corp. rose 0.9% to $55.19, and Cohu Inc. fell 12.46% to $49.97.

Trading volume totaled 4.9 million, compared to the 50-day average of 3.1 million.

Data source: Dow Jones Market Data, FactSet