On October 8, STMicroelectronics NV traded down 3.38% overnight, with shares at $54.22 and turnover of $118.01 million. The move extends a profit-taking phase following a sharp earlier rally tied to the September 14 launch of the VD56GA 1.1-megapixel automotive in-cabin infrared image sensor.

The new sensor aimed at lowering driver and occupant monitoring system costs for mass-market vehicles had already driven significant share-price gains, and valuation digestion now dominates trading. Prior strength was also supported by cumulative shipments of the SafeSense automotive image sensor family surpassing 10 million units, though that catalyst has largely been priced in.

The broader semiconductor complex showed weakness, with Micron Technology down 1.3%, Advanced Micro Devices down 1.09%, Intel down 1.14%, and Broadcom down 1.26%, reflecting sector-wide selling pressure.

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