Teradyne (TER) is trading approximately 4% higher at $447–448, driven by its official addition to the Nasdaq 100 Index today, June 22, 2026. The semiconductor equipment maker also announced a strategic collaboration with Vention to deliver a digital twin platform for Universal Robots cobot cells, boosting its robotics segment. This strong performance extends a multi-day rally, fueled by continued investor rotation into AI-exposed semiconductor names and robust AI chip-testing demand.