On September 18, Analog Devices rose 3.04% in regular trading, trading at $375.42 per share, with turnover of $878 million. The rally was driven by a combination of the company's confirmed $1.35 billion all-cash acquisition of edge AI chip maker Alif Semiconductor and the successful completion of a $3 billion senior notes offering.

On September 9, Analog Devices announced it would acquire Alif Semiconductor, headquartered in Pleasanton, California, for $1.35 billion in upfront cash consideration plus up to $200 million in contingent payments. Alif specializes in energy-efficient AI-native microcontrollers and fusion processors designed for edge intelligence applications. CEO Vincent Roche stated the deal would combine Alif's digital processing technology with ADI's strengths in multimodal sensing, signal processing, power, connectivity, and software to advance physical intelligence applications. The transaction is expected to close before year-end.

On September 17, the company completed a $3 billion senior notes issuance across four maturities, with coupon rates ranging from 5.10% to 5.75%, providing ample funding for the acquisition. Within the Semiconductors sector, Micron Technology rose 3.78%, Broadcom gained 2.83%, AMD advanced 2.14%, NVIDIA climbed 1.32%, while Intel slipped 0.51%.

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