Analog Devices stock gains on a $1.35 billion AI deal

Published on 09/21/2026 at 15:32 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Analog Devices stock closed at USD 375.72 on September 18, 2026, after a 3.6 percent rise. The company plans a USD 1.35 billion Alif Semiconductor deal.

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Analog Devices stock (ISIN US0326541051) closed at USD 375.72 on Nasdaq on September 18, 2026, after a 3.6 percent gain from the prior session. The move came as the company put USD 1.35 billion into an Alif Semiconductor acquisition that targets AI-ready chips.

Deal size and market move

According to Yahoo Finance, Analog Devices will pay USD 1.35 billion in cash and could add another USD 200 million in contingent consideration, lifting the potential deal value to USD 1.55 billion. The same Yahoo Finance page showed the shares at USD 375.72 at the September 18 close, with overnight trading at USD 375.04.

As ad hoc news reported on September 21, 2026, the stock's latest close also stood 3.6 percent above USD 362.70 in the prior session and roughly USD 70.19 below the 52-week high of USD 445.91. The same report put the 52-week low at USD 223.47.

What the numbers say

The Alif Semiconductor move adds a second concrete figure to the story: the company is paying USD 1.35 billion now and may take the total to USD 1.55 billion. For investors, that puts capital allocation beside the stock's recent 3.6 percent daily rise and the gap of about USD 70 between the close and the 52-week high.

Analog Devices stock is also trading well above its 52-week low of USD 223.47, a sign that the market still assigns value to the semiconductor group's AI and industrial exposure. The next trading focus is whether the acquisition narrative can hold against the backdrop of a share price that already sits near the top half of its yearly range.

Stock level now

Analog Devices stock closed at USD 375.72 on Nasdaq on September 18, 2026. That price sat USD 70.19 below the 52-week high of USD 445.91 and USD 152.25 above the 52-week low of USD 223.47.