Winbond Electronics stock falls 1.72 percent as acquisition expands

Published on 09/22/2026 at 23:33 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Winbond Electronics stock closed at TWD 171 on September 22, 2026, after falling 1.72 percent. August revenue rose 289.4 percent year over year to TWD 27.309 billion.

Winbond, TW0002344009, Illustration mit AI erstellt.

Winbond Electronics stock (ISIN TW0002344009) closed at TWD 171.00 on the Taiwan Stock Exchange on September 22, 2026, down TWD 3.00 or 1.72 percent. The decline came as the memory-chip group advanced a planned TWD 35.4 billion purchase of Infineon's NOR Flash and F-RAM operations, a transaction scheduled for the second half of 2027 subject to regulatory approval, according to IT BOLTWISE on September 22, 2026.

Acquisition adds NOR capacity

Taiwan Television reported on September 22, 2026, that Winbond plans to acquire Infineon's NOR Flash and F-RAM business for TWD 35.4 billion. The deal would also bring the Spansion brand, automotive customers and research resources into Winbond's non-volatile memory platform.

The transaction has a measurable strategic angle. Omdia data cited by Taiwan Television put Winbond's 2025 NOR Flash market share at 23 percent and Infineon's at 11 percent, implying a combined 34 percent if the shares are added directly. That is a historical market-share comparison, not a forecast of post-closing revenue.

August revenue reaches record

Winbond's August 2026 consolidated revenue reached TWD 27.309 billion, up 2.0 percent from July and 289.4 percent from August 2025, according to ToAlpha on September 22, 2026. Revenue for the first eight months reached TWD 152.178 billion, an increase of 177.4 percent from TWD 54.86 billion in the comparable period.

The operating signal is therefore stronger than the session result. The stock's September 22 close fell 1.72 percent while the latest monthly revenue figure increased 289.4 percent year over year, leaving acquisition execution, capital allocation and demand durability as the central measurable issues.

Stock closes at TWD 171

Winbond Electronics stock ended September 22, 2026, at TWD 171.00 on the Taiwan Stock Exchange, with 95,430 trading lots and a price-to-earnings ratio of 18.85, according to the dated market snapshot. Institutional flows were mixed: foreign investors bought 7,784 lots, while investment trusts sold 15,450 lots on the same trading day.