Monday, 19 October 2026

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The general elections put the regulation affecting the Ibex 35 at stake

Energy, banking, telecommunications, and infrastructure are the sectors most exposed to political change.

Álvaro Sáez Ferrer
Álvaro Sáez Ferrer
· 2 min read

Companies in the Ibex 35 are closely monitoring the upcoming general elections, as the new government may alter the rules for energy, banking, telecommunications, and infrastructure.

The major companies in the Ibex 35 are paying close attention to the upcoming general elections, because the new government can change the rules in the sectors in which they operate. According to agencia6.com, the state's involvement in energy, telecommunications, banking, and infrastructure means that the electoral outcome is particularly significant for these markets.

The most exposed sectors are energy, which depends on tariff regulation, incentives for renewables, and the energy transition; banking, affected by taxation, interest rates, and mortgage regulation; telecommunications, with spectrum concessions and competition regulation; and infrastructure and concessions, which rely on state investment and public-private collaboration models.

Regulation and taxation are the two main tools a government has over large companies. An interventionist executive could tax extraordinary profits, limit dividends, or require reinvestment in the national territory. A liberal government, on the other hand, would reduce administrative burdens and facilitate mergers and acquisitions.

Another aspect is the appointments. The National Securities Market Commission, the National Commission on Markets and Competition, and the Bank of Spain are formally independent institutions, but their top officials are proposed by the executive, and their decisions can shape regulation for years.

In the markets, electoral uncertainty usually translates into stock market volatility, especially in stocks most exposed to government decisions. Once the political scenario is clarified, the stock market tends to regain stability, unless the new government's programme includes far-reaching structural changes.

The text emphasises that the balance between public oversight and corporate autonomy will be one of the challenges for the next government.

Álvaro Sáez Ferrer

Written by

Álvaro Sáez Ferrer

Redactor

Economista por ICADE y una de las pocas personas que disfruta leyendo la ley de presupuestos. Cafetero, padre a tiempo completo y azote de la letra pequeña; en Diario Empresas escribe de economía y fiscalidad.