TER Teradyne, Inc. (NASDAQ) After Hours 06 Mar 2026: TER stock drops 10.65% as AI robotics demand faces test

TER stock opened a sharp selloff after hours on 06 Mar 2026, trading at $273.05, down 10.65% from the previous close on NASDAQ in the United States. The move followed sector weakness and profit-taking after a strong run higher this year. Investors are watching Teradyne, Inc. (TER) for signs that AI-driven robotics and semiconductor test demand can sustain current forecasts. We assess Q4 results, valuation, technical signals, and analyst price targets to frame the near-term trade for AI stocks.