The stock symbol for Teradyne Inc. is TER. This symbol is used for trading Teradyne's shares on the Nasdaq stock exchange. Investors often use the stock symbol to track the performance of the company and to execute trades. Teradyne has a significant presence in the electronics testing industry, and its stock performance can be influenced by various factors, including market trends, company announcements, and financial results. For the latest stock information, including price and trading volume, it is advisable to check a financial news website or a stock market application. You might also find additional useful information regarding Teradyne and its business activities on their official website.