• Teradyne Inc is trading at $425.42 (up 4.1%) in pre-market, extending a sharp multi-day rebound following the announcement of its upcoming addition to the Nasdaq-100 Index.
  • The company's upcoming addition to the Nasdaq-100 Index, announced on June 11, 2026, and effective June 22, 2026, has fueled significant momentum.
  • This momentum included a notable 5.72% surge on June 12, 2026, directly tied to the index inclusion news, as investors position themselves ahead of the official index rebalancing.