UMC stock: UMC reports September revenue up 27.22 percent. UMC stock falls 1.94 percent.

Published on 10/21/2026 at 16:09 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

September revenue rose 27.22 percent to TWD 25.35 billion. UMC stock costs EUR 17.65 on October 21, 2026, down 1.94 percent versus Tradegate close.

September sales and valuation

UMC reported September revenue growth of 27.22 percent on October 6, 2026.
Second-quarter revenue increased 17.00 percent year over year to TWD 68.73 billion.
UMC stock costs EUR 17.65 at Lang & Schwarz on October 21, 2026 at 4:02 p.m. CEST, down 1.94 percent versus the Tradegate close of October 20, 2026.
UMC is scheduled to report third-quarter results on October 28, 2026.

UMC, US9108734057, Illustration mit AI erstellt.

United Microelectronics Corporation (ISIN US9108734057) reported September revenue of TWD 25.35 billion, up 27.22 percent from the same month a year earlier, in a release dated October 6, 2026. The monthly result gives investors a fresh operating measure before the company's next quarterly report. At Lang & Schwarz, the stock was trading at EUR 17.65 on October 21, 2026 at 4:02 p.m. CEST, down 1.94 percent versus the Tradegate close of October 20, 2026 at EUR 18.00.

September sales accelerate

According to Business Wire, UMC's January through September revenue reached TWD 204.01 billion, an increase of 16.08 percent from the comparable period in 2025. September growth therefore remained ahead of the nine-month pace, although the two figures cover different periods.

The latest quarterly base was also stronger. In the second quarter of 2026, revenue was TWD 68.73 billion, up 17.00 percent from the second quarter of 2025, while gross margin was 32.50 percent. Business Wire reported the quarterly figures as part of UMC's operating-results disclosure.

The 1.94 percent daily decline

The euro quotation sits below the Tradegate close used for the daily comparison. The move is modest beside the company's longer market history, but the direction places the German trading indication below the prior venue close rather than extending the recent advance described in market coverage.

On the NYSE, UMC closed at USD 19.67 on October 20, 2026. MarketBeat cited a market capitalization of USD 49.82 billion, a price-to-earnings ratio of 18.49 and an average analyst target of USD 36.79 in its October 17, 2026 coverage.

October 28 results date

UMC is scheduled to present its third-quarter 2026 financial and operating results on October 28, 2026. Simply Wall St lists the date as the company's next earnings event. The upcoming release will provide the next test of whether the 27.22 percent September growth rate is carrying into the final quarter.

UMC stock price and outlook

United Microelectronics operates as a specialized semiconductor wafer foundry and is listed on the NYSE under the ticker UMC. Its business serves communications, automotive, industrial and consumer-electronics customers, so the September revenue figure provides a direct operating reference rather than a purely market-based signal.

At Lang & Schwarz, UMC stock was trading at EUR 17.65 on October 21, 2026 at 4:02 p.m. CEST, down 1.94 percent versus the Tradegate close of October 20, 2026 at EUR 18.00. The further course of trading is shown by the continuously updated real-time quote of UMC stock.