On July 28, Teradyne rose 9.16% in after-hours trading, trading at 360.61 USD/share, with turnover of $15.73 million. The stock surged following the release of its second-quarter earnings report after the close.

The company reported Q2 results against market expectations of $2.04 EPS, triggering a sharp rebound. Earlier during regular trading, Teradyne had fallen nearly 7% amid heavy selling pressure across the semiconductor equipment sector and pre-earnings caution. Peers including Amkor Technology dropped over 21%, Lam Research fell 8.33%, and Applied Materials declined 7.44%, collectively weighing on sentiment.

Notably, multiple top-tier investment banks had recently raised their target prices on Teradyne: UBS lifted its target to $500, JPMorgan to $450, and Goldman Sachs to $465, reflecting institutional optimism on the company's long-term growth trajectory driven by AI-related semiconductor testing demand. The after-hours reversal suggests the earnings outcome alleviated investor concerns that had built up during the session.

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