The combined stock market capitalization of companies listed in Spain closed October at 1.707 trillion euros, which implies a year-on-year increase of 12.86%, equivalent to 194.460 million euros, compared with the same month of 2025, according to statistics from Bolsas y Mercados Españoles (BME).
In what has gone on in 2026, the aggregate market value of the Spanish Stock Exchange accumulates a gain of 7.23%, that is, 115.108 million euros more than at the close of 2025.
If only October 2026 is analyzed, the capitalization of domestic listed companies recorded a drop of 2.24% compared with the close of September, which represents a decline of 39.156 million euros, bringing it back to 1.707 trillion euros.
Sector performance in October
In a broader analysis of the tenth month of 2026, the financial sector suffered a monthly cut to its capitalization of 14.21%, which translates into 69.367 million euros less, leaving it at 418.732 million euros. However, if it is compared with December 2025, it registers only a positive variation of 0.07%.
By contrast, oil and energy companies concluded October with an increase of 13.812 million euros, 5.16% more, which raises their total value to 281.514 million euros. In the year-to-date period, this segment adds around 56.391 million euros, which represents a gain of 25.05%.
In parallel, consumer goods -- with a very prominent weight of Inditex -- ended October with an improvement of 3.97%, equivalent to 7.833 million euros added to their capitalization. However, in the 2026 balance this sector still loses 1.172 million euros, a decline of 0.57%.
The Ibex 35 closes its worst month since March
The Ibex 35 ended October with a monthly decline of 3.90%, to stand at 18.652,90 points, its worst monthly close since March, driven by the sharp declines of tech stocks, the rebound in yields on sovereign debt, and the latest meetings on monetary policy by the European Central Bank (ECB) and the United States Federal Reserve (Fed, for its acronym in English).