Teradyne Inc is trading 4.8% up at $428.12, extending a strong multi-session rally following news that the company will be added to the Nasdaq-100 Index.
- The stock is set to join the Nasdaq-100 before June 22, 2026, a move that typically triggers significant buying from passive funds and index-tracking investors.
- Bullish sentiment is further bolstered by a recently announced $139.9 million contract with the U.S. Department of Defense.
- The combination of index inclusion momentum and major contract wins continues to drive elevated demand and support the stock's upward trajectory.