Portugal's PSI Index Ends Monday Trading with Marginal Gains

Portugal's benchmark stock index, the PSI, ended Monday's trading session with a marginal gain, advancing 0.07% to close in positive territory.

The modest rise was driven by strength in the Telecommunications, Basic Materials, and Consumer Services sectors, according to data from Investing.com.

Market Internals and Key Movers

Despite the index's slight gain, market breadth was negative on the Lisbon Stock Exchange. Declining stocks outnumbered advancing ones by a count of 19 to 6, while 5 constituents ended the session unchanged. This suggests the positive close was driven by gains in a few heavily weighted companies.

Key performers on the day included:

• Galp Energia Nom (ELI:GALP): rose 2.74% to trade at 21.40.
• Semapa (ELI:SEM): added 2.42% to end at 21.20.
• Nos SGPS SA (ELI:NOS): gained 0.72% to close at 5.03.

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Among the laggards, construction firm Mota Engil SGPS SA (ELI:MOTA) was the worst performer, falling 1.29%. It was followed by EDP Renovaveis (ELI:EDPR), which declined 1.23%.

Broader Market Context

The move in Portuguese equities occurred alongside a significant rally in energy prices. Brent oil futures for December delivery surged 4.89% to $90.33 a barrel, a development that likely provided a tailwind for energy stocks like Galp.

In the currency markets, the EUR/USD and EUR/GBP pairs were relatively stable. The US Dollar Index Futures, which measures the greenback against a basket of major currencies, traded down 0.27% to 99.39.