Teradyne stock heads into the open after a 3.5% slide

At the close on September 10, 2026, Teradyne stock finished at USD 370.19 on the Nasdaq, down 3.52 percent, underperforming broader peers and sitting more than 24 percent below its 52-week high. Today, investors watch the broader tech and semiconductor backdrop into the open.

Teradyne stock closed at USD 370.19 on the Nasdaq on September 10, 2026, down 3.52% from the previous session. The shares ended the day more than 24% below their 52-week high of USD 487.91, highlighting a notable gap to recent peak levels.

September 10, 2026 in numbers

Teradyne Inc. (ISIN US8807701029, Nasdaq: TER) finished the September 10, 2026 session at USD 370.19, slipping 3.52% after trading in a range that left the close well below its 52-week high of USD 487.91 per MarketWatch data from the Nasdaq session. According to MarketWatch, the 3.52% decline on September 10, 2026 left the stock roughly 24.13% short of its 52-week high, marking a weaker performance than key competitors on the same day.

As Yahoo Finance reported on September 10, 2026, Teradyne’s 3.52% loss meant the stock suffered a larger drop than the general market in the latest session. The report noted that the shares moved to USD 370.19 from the prior close, underscoring that the stock lagged broader indices on the day.

Today’s focus on September 11, 2026

Today, there is no company-specific event for Teradyne explicitly scheduled within the next few days in major public earnings calendars, so attention remains on sector and macro drivers around the open. Broader technology and semiconductor sentiment, including recent discussions of artificial intelligence hardware demand highlighted by Teradyne’s positioning at recent industry conferences as described by Investing.com, remains a key backdrop as the stock heads into today’s U.S. session.