NOS stock edges higher as PSI index inches up

NOS stock in Lisbon made a modest gain on August 31, 2026, as the PSI index closed slightly higher, keeping the telecom and media group aligned with Portugal’s broader equity market trend.

NOS (ISIN PTZON0AM0006) stock added a small gain on August 31, 2026, closing at EUR 5.03 after a 0.72 percent advance that mirrored a mildly positive session for Portugal’s PSI index.

According to a market snapshot of Portuguese equities published on August 31, 2026, NOS shares finished at EUR 5.03, up EUR 0.04 on the day, while the PSI benchmark rose 0.07 percent, signaling a steady tone for Lisbon-listed stocks. A Portuguese market overview highlighted NOS among the gainers as local telecoms and media names participated in the modest move higher.

Shares track Portugal’s PSI index

The cited overview of the PSI index noted that NOS ended the session at EUR 5.03 with a 0.72 percent rise, while the index added 0.07 percent at the close on August 31, 2026, showing that NOS outperformed the benchmark on the day by 0.65 percentage points. The same snapshot put NOS alongside other names such as Semapa, which gained 2.42 percent to EUR 21.20, underlining that performance across the index was mixed but skewed slightly positive.

The EUR 0.04 increase in NOS shares on August 31, 2026, may appear modest in isolation, but compared with the PSI’s 0.07 percent move it underscores that the stock showed a bit more strength than the broader Portuguese market on that date. For investors, this relative outperformance is a small but concrete indication that sentiment toward NOS remained constructive, even without a major company-specific headline in the session.

Fundamentals and recent performance context

While the latest market snapshot focuses on daily price moves, the same data set underscores NOS’s role in the PSI index as a telecom and media group whose share price responds not only to local macro conditions but also to sector dynamics such as competition and investment in networks. As of August 31, 2026, NOS’s closing price of EUR 5.03 places the stock within the typical trading band seen in recent months, between its lower levels earlier in the year and the higher prints reached when investor risk appetite for Portuguese equities improved. The 0.72 percent gain on the day, compared with a 2.42 percent rise for Semapa, shows that NOS’s move was moderate rather than aggressive, aligning with its profile as a defensive telecom exposure inside the PSI.

Historical context from prior reporting periods indicates that NOS has been focusing on stabilizing revenue and earnings while expanding its converged offerings and investing in mobile and fixed-line infrastructure. In earlier fiscal years, the group’s revenue profile reflected a mix of pay-TV, mobile, and broadband services, with earnings shaped by competition in the Portuguese telecom market and regulatory conditions. Those historical figures help explain why the market often views NOS as a relatively stable income and cash-flow story rather than a high-growth name, even when the shares register short-term gains such as the 0.72 percent uptick on August 31, 2026.

Representative product: NOS telecom and media services

NOS’s business model centers on providing integrated telecom and media services in Portugal, combining mobile telephony, fixed broadband, pay television, and related digital solutions for households and enterprises. In practice, this includes bundles that offer high-speed internet, TV channels with premium content, and mobile connectivity on a single bill, aiming to increase customer loyalty and reduce churn. By aligning connectivity with entertainment and value-added services, NOS seeks to differentiate its offerings in a competitive market where price pressure is constant and network quality, streaming options, and customer experience play a central role in winning and retaining subscribers.

Stock level and trading venue

As of the close on August 31, 2026, NOS stock traded at EUR 5.03 on Euronext Lisbon, giving investors direct exposure to Portugal’s telecom and media sector through a liquid listing on the country’s main exchange.

Fact box

Company: NOS SGPS S.A.

ISIN: PTZON0AM0006

Ticker: NOS

Exchange: Euronext Lisbon

Price (as of August 31, 2026, close): EUR 5.03

Sector / Industry: Telecommunications and media

Index membership: PSI