At around 8:45 am in Lisbon, the PSI maintained its opening trend and fell 5.94% to 6,241.55 points, the lowest since April 17, 2024, with the price of the 15 'papers' falling.

CTT shares were followed by Galp, which fell 7.01% to 13.40 euros.

Shares in Ibersol, BCP and Semapa fell more than 6%, notably 6.98% to 8 euros, 6.51% to 0.46 euros and 6.26% to 14.04 euros.

Following the same trend, five shares fell by more than 5% - EDP and EDP Renováveis, which fell by 5.99% to 2.97 euros and 5.97% to 6.93 euros. REN, Mota-Engil and Corticeira Amorim fell 5.85% to 2.65 euros, 5.69% to 2.95 euros and 5.67% to 7.16 euros.

More moderately, but down more than 4%, shares in Jerónimo Martins, Altri and NOS fell 4.59% to 19.52 euros, 4.56% to 5.63 euros and 4.30% to 4.11 euros.

Sonae and Navigator lost 3.94% to 1.0 euros and 3.36% to 3.10 euros.

The main European stock markets opened today in free fall, following the trend of Asian markets, due to Donald Trump's inflexibility regarding the tariffs imposed on the United States' trading partners.

The EuroStoxx 600 fell more than 5% and the London, Paris and Frankfurt stock exchanges fell 4.58%, 5.78% and 6.58%, respectively, while those in Madrid and Milan fell 5.51% and 6.90%. The Frankfurt stock exchange fell by more than 9%.

The price of Brent crude for June delivery, the European benchmark, fell to $62.77 from $65.77 on Friday.

The euro was rising to $1.1028 on the Frankfurt foreign exchange market, up from $1.0956 on Friday.