On September 21, Teradyne rose 3.02% in regular trading, trading at $382.635/share, with turnover of $311 million. The rally was driven by the company's announcement of the Iris 100, a new optical test platform designed specifically for high-volume microLED manufacturing.

According to the announcement, the Iris 100 platform measures individual emitters across microLED arrays, including spectral response, brightness, and uniformity. Its test and image-processing technology can characterize arrays containing millions of microLEDs and identify defects such as dead or stuck pixels and cluster defects. The platform also integrates with Teradyne's UltraFLEXplus system for combined optical and electrical testing, supporting both wafer-level and final testing, with a roadmap to add photodetector testing capabilities.

Teradyne is a global leader in automated test equipment and robotic solutions. Its Semiconductor Test segment has seen significant growth driven by AI application demand. The broader semiconductor equipment sector also showed strength, with Applied Materials up 3.98%, Lam Research up 3.97%, KLA Corporation up 3.40%, ASML Holding up 1.29%, and AXT Inc up 13.17%.

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