NOS stock gains modestly as Portugal market slips

Published on 09/14/2026 at 19:50 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

NOS stock added 0.57 percent to close at EUR 5.29 on Euronext Lisbon on September 14, 2026, while the PSI index fell 1.52 percent. The move keeps the shares within their recent trading range versus the Portuguese benchmark.

5G-Mobilfunkantenne auf Dach in Lissabon, Symbolbild Telekommunikation Portugal — Fotorealistische 5G-Mobilfunkantenne in Lissabon symbolisiert NOS SGPS SA (ISIN PTZON0AM0006) und portugiesische Telekommunikationsinfrastruktur eindrucksvoll, Illustration mit AI erstellt.

NOS SGPS stock (ISIN PTZON0AM0006) closed at EUR 5.29 on Euronext Lisbon on September 14, 2026, marking a daily gain of 0.57 percent even as the broader PSI index declined 1.52 percent, according to Investing.com.

Portugal session shows NOS stock resilience

As Investing.com reported on September 14, 2026, NOS SGPS SA (Euronext Lisbon: NOS) added 0.03 points to end the session at EUR 5.29, a 0.57 percent rise compared with its prior close.

In the same report, the PSI index was down 1.52 percent at the close, indicating that NOS stock outperformed the Portuguese benchmark on that trading day by more than 2 percentage points, a small but notable relative gain for investors watching domestic telecom and media names.

Recent trading range and market context

Recent price overviews show NOS stock trading within a defined yearly corridor on Euronext Lisbon, with the latest EUR 5.29 close sitting at a measurable distance from both its 52-week high and 52-week low, as outlined in recent Portuguese equity summaries such as a recent corporate news overview published on September 14, 2026.

According to that overview, NOS SGPS closed higher on Euronext Lisbon on September 11, 2026, with the intraday low and high framing the move and confirming that the price action remained inside the day range, while trading volume contributed to liquidity and placed the stock at a clear distance from its documented 52-week extremes.

Operating backdrop and investor perspective

The latest investor materials for NOS SGPS are available via the company's investor-relations hub, with financial reports and presentations accessible through NOS SGPS, which centralizes disclosures on revenue, profitability, segment development and guidance for the most recent quarters and fiscal years.

These materials outline how NOS generates revenue from telecommunications, pay-TV and related digital services in Portugal, and they allow investors to cross-check whether recent share-price moves around EUR 5.29 on September 14, 2026 are supported by trends in key operating figures such as customer growth, average revenue per user and margin evolution across the latest reporting periods.

NOS stock price snapshot

At the close on September 14, 2026, NOS stock finished at EUR 5.29 on Euronext Lisbon, up 0.57 percent for the day, with that level trading within its documented 52-week range on the Portuguese exchange. This keeps the market capitalization anchored in the mid-cap segment of the PSI index and offers investors a reference point for assessing further moves in the name relative to domestic peers.