Transparency in financial derivatives 2026: what changes for investment firms

Key data

Investment firms operating derivatives in the EU have a regulatory update on their hands that they cannot ignore. The Delegated Regulation (EU) 2026/1763, published on 23 October 2026, simultaneously modifies three key technical standards of the MiFIR/MiFID II framework and corrects a fourth. The result: new technical parameters for transparency, greater flexibility in order packages and more precise data for the OTC derivatives consolidated tape.

This is not a minor revision. It directly affects reporting systems, market data flows and operational procedures of any entity that trades or manages derivatives in regulated or over-the-counter markets within the European Union.

What does this regulation establish?

Regulation 2026/1763 introduces changes to four different technical standards. The specific changes by affected regulation are detailed below:

In practical terms, the standard operates on three axes: transparency (what information trading venues and ISFs must publish and when), operations (how order packages are managed with greater room for manoeuvre) and data quality (what information flows to the consolidated tape and in what format).

Economic and operational impact

The impact of this regulation is not primarily a fine or a fee: it is a cost of technological and operational adaptation. Affected entities will need to evaluate three spending fronts:

• Review of reporting systems: The new technical parameters of the modified Regulation 2017/583 require that pre and post-trade transparency reporting systems be updated to reflect the new fields and thresholds. This involves IT development, testing and validation.
• Adaptation to the consolidated tape: Changes to the input and output data of the consolidated information system for OTC derivatives (modification of Regulation 2025/1155) require that data providers and ISFs review their data flows and submission formats.
• Update of procedures for order packages: The greater operational flexibility introduced in Regulation 2017/2194 is an opportunity, but requires updating procedure manuals and order management systems to take advantage of it correctly and without compliance risk.

The correction of Regulation 2017/587 eliminates previous inconsistencies in transparency obligations for equity instruments, which can simplify compliance in that segment but requires verifying that systems were not operating on the incorrect interpretation.

Who does it affect?

• Investment service firms (ISFs) that trade derivatives in regulated or over-the-counter (OTC) markets in the EU
• Trading venues (regulated markets, multilateral trading facilities and organized trading systems) that admit derivatives to trading
• Financial data providers that supply information to the consolidated information system (consolidated tape) for OTC derivatives
• Compliance and technology departments of financial entities with derivatives activity under MiFIR jurisdiction
• Asset managers and funds that execute strategies with derivatives through ISFs or trading venues regulated in the EU

Practical example

A Spanish investment service firm that operates interest rate swaps and commodity derivatives in EU regulated markets is affected on all three axes of the regulation:

• Its pre-trade transparency systems must publish quotes and market depth under the new technical parameters of the modified Regulation 2017/583. If fields or thresholds change, the reporting system must be updated before the application date.
• If it executes order packages (multi-leg strategies combining several derivatives in a single instruction), the greater flexibility of the modified Regulation 2017/2194 allows it to manage these packages with fewer operational restrictions, but must document the new procedure.
• As a data contributor to the OTC derivatives consolidated tape, it will need to review the input and output fields it sends to the tape provider, in accordance with the adjustments to the modified Regulation 2025/1155.

The cost of not acting: risk of incorrect reporting, possible supervisor requirements and exposure to sanctions under the MiFIR regime, whose application is the responsibility of national supervisors (in Spain, the CNMV).

What should companies do now?

1. Identify internal scope: Determine which business lines, systems and processes are affected by each of the four modified regulations (2017/583, 2017/2194, 2025/1155 and 2017/587).
2. Review transparency reporting systems: Audit pre and post-trade reporting systems for derivatives and compare current parameters with the new technical requirements of the modified Regulation 2017/583.
3. Update data flows to the consolidated tape: Coordinate with the consolidated information system provider to verify that input and output data comply with the adjustments to the modified Regulation 2025/1155.
4. Review order package procedures: Update operational manuals and order management systems to reflect the greater flexibility introduced in the modified Regulation 2017/2194.
5. Verify the impact of the correction to Regulation 2017/587: Check whether transparency systems for equities were operating on the interpretation that is now being corrected and, if necessary, adjust them.
6. Monitor the application date: The entry into force date is not specified in the published text. Assign a responsible party to monitor and act as soon as the adaptation period is confirmed.

Official source

Consult complete regulation in official source

Disclaimer: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://eur-lex.europa.eu/./legal-content/AUTO/?uri=OJ:L_202601763