The Spanish index advanced by 0.80% this Monday, reaching 19,741.30 points, after touching 19,900 points, although analysts warn that the geopolitical truce is fragile.
The Ibex 35 closed Monday's session with a gain of 0.80%, standing at 19,741.30 points, after having approached 19,900 points during the day, a level that would have marked a new historical high. The rise occurred in a context of a pause in hostilities between the United States and Iran, although experts call for caution.
Analysts at Renta 4 described the truce as "fragile" and reminded that U.S. President Donald Trump has declared himself "ready and loaded." Furthermore, the Houthis continue to attack facilities linked to Saudi Aramco in Jizan and Yanbu, while Iran maintains contacts with Oman to discuss the situation in the Strait of Hormuz.
Meanwhile, Bankinter noted that "the two open wars (Iran and Ukraine) are long-term and affect oil," which forces one to "remain permanently on alert and try to analyse with some perspective rather than rushing and overreacting."
On the corporate front, Línea Directa announced a net profit of €52.09 million in the first half, 19% more than in the same period of 2025. Acciona Energía, for its part, reached an agreement to sell a wind portfolio of 361 megawatts (MW) in Spain to the Portuguese Galp for €432 million, with no financial debt in the perimeter.
Banco Sabadell began a share buyback programme on Monday for a maximum amount of €331 million, aiming to retain the shares in treasury for subsequent amortisation via capital reduction.
The biggest gainers of the session were Indra (+5.06%), Amadeus (+3.28%), Logista (+2.86%), Banco Santander (+2.30%) and Fluidra (+2.02%). On the downside, ACS led the declines (-5.06%), followed by Acciona (-2.02%), Solaria (-1.92%), Sacyr (-1.58%) and Acciona Energía (-1.48%).
The rest of the main European stock exchanges also closed positively: the FTSE 100 rose by 0.42%, the Cac 40 by 0.40%, the Dax by 1.04%, the FTSE MIB by 0.49% and the Euro Stoxx 50 by 0.02%. On Wall Street, the day was mixed: the Dow Jones advanced by 0.18%, while the S&P 500 lost 0.29% and the Nasdaq 100 fell by 0.47%.
In the commodities market, Brent crude stood at $89.67, down 7.35%, and West Texas Intermediate (WTI) at $83.18, down 6.86%. In fixed income, the yield on the Spanish 10-year bond fell to 3.587%, with the risk premium at 45.9 basis points. The euro appreciated slightly against the dollar, reaching $1.1374 per euro.
Safe-haven assets also moved: gold rose by 0.20%, to $4,078 per ounce, while bitcoin fell by 0.28%, to $64,581.
Investor attention this week will focus on geopolitical developments, corporate earnings from listed companies, and meetings of the U.S. Federal Reserve, the Bank of England, and the Bank of Japan. For investors, the key will be whether the truce consolidates or if tensions escalate again, which could affect oil prices and market volatility.

