Teradyne Inc is trading 5% up today at $424.46, extending a sharp rally driven by headlines regarding its inclusion in the Nasdaq-100 index.

  • The index inclusion has sparked sustained buying interest, further amplified by ongoing momentum within the AI and semiconductor sectors.
  • Broader market sentiment has shifted to a risk-on stance following a tentative U.S.–Iran peace deal and declining oil prices, which are providing a lift to growth and technology stocks.
  • The stock continues to outperform futures-driven tech gains as investors react to the favorable combination of index-related demand and easing geopolitical tensions.