The Ibex falls by 0.18% after the rate hike by the ECB and Brent exceeds 105 dollars.

If the European Central Bank (ECB) adopts a decision that requires adaptation of Spanish legislation, the parliamentary procedures will essentially be those of a state law (ordinary or organic) or, where appropriate, a royal decree-law, with the particularity that the political margin of the Cortes is limited by the obligations derived from EU law.

1. Choice of regulatory instrument by the Government

In practice, the Government initiates the transposition or adaptation process, analyzing:

• The subject matter affected (whether or not it falls within the scope of organic law).
• The degree of detail required by the ECB decision.
• Possible urgency (application deadlines set by EU regulations).

From this analysis, three typical scenarios arise:

• Organic law: if the adaptation affects fundamental rights or basic institutions (for example, the basic statute of the Bank of Spain in its constitutional core).
• Ordinary law: the most common option for organizational, prudential, supervisory, or financial sanctioning regime aspects.
• Royal decree-law: if the Government perceives a situation of extraordinary and urgent need (imminent deadlines, risk of serious infringement, financial stability, etc.).

2. Parliamentary procedure for an ordinary law

When the Government opts for an ordinary bill, the typical process is:

• Approval by the Council of Ministers of the bill, with a statement of reasons and reports, including reference to the obligation derived from the ECB/EU.
• Referral to the Congress of Deputies, qualification by the Board, and publication.
• Consideration in Plenary and possible submission of total amendments (return or alternative text).
• If this phase is passed, it moves to Committee: drafting group, detailed debate of amendments to the articles, and preparation of a report.
• Debate and vote in the Plenary of the Congress on the report and pending amendments, including possible transactional amendments that groups may agree to close last-minute deals (admissible if authorized by the Board).
• Referral to the Senate, which may approve, amend, or veto the text.
• If the Senate amends, the text returns to the Congress, which has the final say: it may accept or reject those amendments by simple majority, thereby consolidating the final text.
• Sanction and promulgation by the King and publication in the Official State Gazette (BOE).

During this procedure, the Government retains some control: for example, it can veto amendments that imply increased expenditure or decreased revenue compared to the General State Budgets, which may be relevant if any group intends to “charge” more costs to the State than initially planned.

3. Particularities of organic law

If the adaptation requires organic law, the procedural route is basically the same, but with two essential features:

• It must be approved by absolute majority of the Congress in a final vote on the entire text.
• The Senate also intervenes, but, as in ordinary laws, the Congress can ultimately impose its criterion by accepting or rejecting the Senate amendments.

This practically reduces the political room for maneuver: besides respecting the ECB and EU framework, reinforced majorities must be articulated.

4. Royal decree-law route

If a royal decree-law is used, the process is accelerated:

• The Government approves the text in Council of Ministers, justifying the extraordinary and urgent need.
• The decree-law enters into force after its publication in the BOE.
• The Congress must validate or repeal it within 30 days, in a total debate without an amendment phase.
• In the same validation agreement, the Congress may decide its processing as a bill by the urgent procedure, thus opening the ordinary phase of amendments, committee, Senate, etc.

This technique allows meeting European deadlines quickly and, at the same time, later giving Parliament room to refine the text through amendments.

5. Margins of modification regarding the ECB decision

The Cortes Generales have the capacity to modulate the legislative technique, organizational details, gradation of sanctions or procedures, provided that:

• The mandatory result imposed by EU law is respected.
• The purpose pursued by the ECB is not emptied of content nor incompatible measures established.
• The practical effectiveness of the decision and the principle of proportionality are maintained.

If Parliament substantially departs from the European framework, Spain is exposed to an infringement procedure before the CJEU. Therefore, the real margin is more political-technical (how it is implemented) than free configuration of the “what.”

The Treaty on the Functioning of the European Union (TFEU) does not contain a single systematic article dedicated to listing the powers of the President of the European Central Bank (ECB), but it does define his position, appointment method, and institutional framework. These provisions are complemented by Protocol No. 4 on the Statute of the European System of Central Banks (ESCB) and the ECB, which forms an integral part of the Treaties. From both texts, the functions and powers of the President can be clearly summarized.

1. Institutional position and appointment

The TFEU (Article 283) establishes that the President of the ECB is one of the members of the Executive Board of the Bank. He is appointed by the European Council, by qualified majority, from persons with recognized authority and experience in monetary or banking matters, after consultation with the European Parliament and the ECB Governing Council itself.

This design aims to ensure:

• High-level legitimacy, as the European Council (heads of State or Government) intervenes in the appointment.
• Indirect democratic control, as consultation with the European Parliament is required.
• Technical independence, as a very high professional qualification and a long, non-renewable mandate (according to the Statute) are required.

2. Role within the ECB and the European System of Central Banks

The TFEU defines the ECB as the institution responsible for the monetary policy of the euro area, with the primary objective of maintaining price stability. The President of the ECB performs his functions within the collegiate framework of the Bank's decision-making bodies:

• Executive Board: body responsible for the day-to-day management of the ECB and the execution of monetary policy according to the guidelines of the Governing Council. The President is one of its six members and its central figure.
• Governing Council: the highest decision-making body on monetary policy, composed of the members of the Executive Board and the governors of the national central banks of the euro countries. The President chairs it.

Although key decisions are collegiate, the President's position is that of primus inter pares, with a strong capacity to guide the agenda and represent.

3. Decision-making and leadership powers

According to the TFEU and the attached Statute, the main leadership functions of the President of the ECB are:

• Chairing the Governing Council and the Executive Board: directs sessions, sets the agenda in coordination with other members, and channels debates on monetary policy decisions (interest rates, asset purchase programs, refinancing operations, etc.).
• Promoting and coordinating the execution of monetary policy: although decisions are collegiate, the President ensures their correct implementation by the Executive Board and the entire ESCB.
• Ensuring coherence of the ECB's actions: within the objectives set by the TFEU (especially price stability), the President exercises internal leadership so that the Bank's different functions (monetary policy, financial stability, payment systems, statistics) maintain a coherent orientation.

4. Representation and accountability function

The TFEU attributes to the ECB the status of a Union institution, with functional and organic independence. Within this framework, the President assumes key representation functions:

• External representation of the ECB and the ESCB: the President represents the Bank before other EU institutions (Council, Commission, European Parliament) and in international forums (G-7, G-20, International Monetary Fund, etc.), insofar as these functions derive from the ECB's mandate.
• Periodic appearances before the European Parliament: although details are specified in interinstitutional agreements, the basis is in the TFEU, which requires democratic accountability. The President explains and justifies the orientation of monetary policy and answers questions from MEPs.
• Public communication of monetary policy: as the visible face of the ECB, the President presents the Governing Council's decisions, especially through press conferences and public statements. This dimension, although not detailed article by article, derives from the general representation function and is essential for the effectiveness of monetary policy.

5. Independence and limits

The TFEU emphasizes the independence of the ECB and its decision-making bodies: neither the President nor other members may seek or accept instructions from governments or other institutions. The President, as the highest visible official, has the obligation to safeguard that independence against political pressures, while respecting the framework of objectives set by the Treaties.

In summary, according to the TFEU (complemented by the Statute), the President of the ECB:

• Is the highest institutional responsible of the ECB politically and in communication.
• Chairs the bodies where monetary policy decisions are made.
• Coordinates and supervises the execution of those decisions within the ESCB.
• Represents the ECB before other EU institutions and third parties.
• Must act with independence, within the price stability mandate set by the Treaties.

In Spain, there is no “Ibex 35 law” as such. What exists, on the one hand, are the legal and regulatory requirements for a company to be listed on a regulated Spanish market (for example, the stock exchanges of Madrid, Barcelona, Bilbao, or Valencia) and, on the other hand, the technical and composition rules of the Ibex 35 index itself, set by BME (Bolsas y Mercados Españoles). A company can only enter the Ibex 35 if it first meets the legal admission requirements for listing and, additionally, meets the index criteria.

1. Legal requirements to be listed on a regulated Spanish market

For a company to have its shares admitted to trading on a Spanish Stock Exchange, it must comply with securities market regulations (mainly the Securities Market Law and its implementing regulations, plus EU regulation). Among the most relevant requirements are:

• Appropriate legal form: the company must practically be a public limited company (or an equivalent corporate form that allows free transferability of shares and their representation by book entries).
• Share capital and share structure: there must be a sufficient minimum capital and fully paid shares, all of the same class or, if there are several classes, clearly differentiated and with transparent treatment for investors.
• Audited financial information: the company must provide audited annual accounts, with reasonable age and history, allowing the market to assess its economic and financial situation. The auditor must be independent and comply with current auditing standards.
• Approved admission prospectus: approval of an information prospectus by the supervisor (in Spain, the CNMV) is required, detailing activity, risks, financial situation, shareholding structure, governing bodies, etc. Without this approved prospectus, trading cannot be admitted.
• Minimum free float: it is usually required that a minimum percentage of shares (for example, 25% or a threshold established by the regulator and the market) be held by minority shareholders and be effectively tradable, to guarantee liquidity.
• Corporate governance and transparency: the company must comply with continuous disclosure obligations: communication of relevant facts, periodic publication of financial information, preparation of corporate governance and remuneration reports, and compliance with market abuse rules (insider information, market manipulation, etc.).
• Registration and settlement: shares must be represented by book entries and integrated into official securities clearing and settlement systems.

2. Specific requirements to enter the Ibex 35

The Ibex 35 is a private stock index that generally groups the 35 companies with the highest liquidity and free-float adjusted capitalization in the Spanish market. Its rules are not a law but a methodology approved by BME and managed by a Technical Advisory Committee. Simplified, the main criteria are:

• Listed on the Spanish continuous market: the company must have its shares admitted to trading on the Spanish stock market interconnection system (continuous market) and consistently comply with the legal obligations mentioned above.
• Minimum listing age: normally, the security must have been listed for a minimum period (for example, six full months) before entering the index, except for very relevant exceptional corporate operations.
• Relevant market capitalization: free-float adjusted capitalization is taken into account. The index groups the securities with the largest effective market size; if a company loses relative weight compared to others, it may be removed from the index in periodic reviews.
• High liquidity: traded volume and the number of days the security is traded are analyzed. Securities with scarce or very sporadic trading are excluded or penalized, even if their capitalization is high.
• Sufficient free float: beyond general regulation requirements, the index needs a relevant percentage of capital actually available for trading, avoiding companies too concentrated in few shareholders.
• Periodic reviews: the Ibex Committee reviews the index composition (usually several times a year) and may include or exclude securities based on size, liquidity, and free float criteria.

3. Key idea

In summary, for a company to be listed on the Ibex 35, it must first meet all legal and regulatory requirements to be an issuer admitted on the Spanish Stock Exchanges, and then be among the companies with the highest capitalization and liquidity according to the index's internal rules. The “legal” element mainly resides in admission to listing and compliance with securities market rules; membership in the Ibex 35 is a consequence of how the market values and trades the company within that regulatory framework.