Lisbon, May 5, 2026 (Lusa) - The Lisbon stock market was trading higher on Tuesday morning as Corticeira Amorim and NOS led gains, rising over 2.5%, while EDP fell 3.38% to €4.44. Around 9:30 a.m. in Lisbon, the PSI (Portuguese Stock Index) had reversed its opening trend and was climbing 0.71% to 9,233.53 points. Among its listed companies, 12 rose, three fell, and Altri remained stable at €5.03. Corticeira Amorim and NOS rose 2.91% to €6.58 and 2.57% to €5.59, respectively. News agency Efe reported on Monday that EDP is among the companies targeted in one of eight new investigations by Spain’s competition authority about the power blackout on 28 April 2025 across the Iberian Peninsula.
The National Markets and Competition Commission (CNMC) has now opened 63 proceedings that could result in sanctions. An official EDP source told Lusa that the Portuguese utility received notification from the CNMC regarding a disciplinary proceeding at the Soto de Ribera thermal power plant.
However, the company said it did not associate the "proposed proceeding with the incident on 28 April" since "this plant was not even scheduled to operate at the time of the blackout." Corticeira Amorim shareholders approved €46.5 million in dividends at Monday’s AGM, corresponding to €0.35 per share, the company told the market. The meeting approved the results application proposal, which includes €6.19 million for free reserves in addition to the €46.5 million in dividends. Following Corticeira Amorim and NOS, shares in Navigator, Semapa, and REN rose 1.75% to €3.38, 1.74% to €23.35, and 1.49% to €3.75. EDP Renovaveis and Jeronimo Martins both rose 1.36% to €14.15 and €20.16.
CTT and Mota-Engil gained 1.23% to €6.16 and 1.15% to €4.73. Other gainers included BCP (up 0.89% to €0.88), Galp (up 0.63% to €20). Conversely, besides EDP, Teixeira Duarte and Ibersol fell 0.35% to €0.43 and 0.16% to €12.16. Main European bourses opened higher on Tuesday in a session likely marked by market volatility due to Middle East geopolitical tensions. The euro was stable, slipping 0.01% to $1.1690 on the Frankfurt currency market.
Currently, Dow Jones and Nasdaq futures point to gains of 0.24% and 0.43%.
Market volatility continued after U.S. President Donald Trump announced an initiative for the military to escort ships trapped in the Strait of Hormuz so they could leave, which resulted in new Iranian attacks.
The price of Brent crude for July delivery fell 0.01% to $116.90.
Markets are again focusing on corporate results released on Tuesday.
MC/LYT // AYLS
Lusa
