MiFID II and MiFIR

The Markets in Financial Instruments Directive II (MiFID II — Directive 2014/65/EU) and the Markets in Financial Instruments Regulation (MiFIR — Regulation (EU) 600/2014) constitute the core of the EU’s regulatory framework for investment services, trading venues, and market structure. Together, they replace the original MiFID Directive (2004/39/EC), entering into application on 3 January 2018 following a one-year delay necessitated by the complexity of the technical infrastructure required. The framework responds to the financial crisis of 2008 and the technological transformation of financial markets.

Scope and Objectives

MiFID II/MiFIR regulate investment firms, trading venues, and data reporting service providers. The framework pursues four primary objectives: enhancing investor protection through improved conduct of business rules; increasing market transparency through pre- and post-trade disclosure; strengthening the resilience and integrity of trading infrastructure; and extending regulatory oversight to previously unregulated activities including algorithmic trading and commodity derivatives.

Investment Firms — Authorisation and Organisation

An investment firm — any legal person whose regular occupation or business is the provision of one or more investment services to third parties — must be authorised by its home Member State competent authority under Article 5 of MiFID II. Authorisation is required for core services including reception and transmission of orders, execution of orders, portfolio management, investment advice, underwriting, and operation of multilateral trading facilities.

Organisational requirements under Articles 16 through 23 include robust governance arrangements, risk management, conflicts of interest policies, and client asset protection. The senior management regime requires firms to ensure that persons directing the business are of sufficiently good repute and possess appropriate knowledge, skills, and experience.

Trading Venues

MiFIR classifies trading venues into three categories. Regulated Markets (RMs) are multilateral systems operated by a market operator that bring together multiple third-party buying and selling interests in financial instruments. Multilateral Trading Facilities (MTFs) are multilateral systems operated by an investment firm or market operator, functionally similar to RMs but subject to fewer organisational requirements. Organised Trading Facilities (OTFs) are a new category introduced by MiFID II to capture trading systems for bonds, structured finance products, emission allowances, and derivatives that do not fall within the RM or MTF definitions.

Systematic Internalises (SIs) are investment firms that deal on own account when executing client orders outside a trading venue. MiFIR imposes pre-trade transparency requirements and execution obligations on SIs.

Algorithmic and High-Frequency Trading

MiFID II introduced comprehensive regulation of algorithmic trading, defined as trading in financial instruments where a computer algorithm automatically determines individual parameters of orders. Article 17 requires algorithmic trading firms to have effective systems and risk controls, including circuit breakers, maximum order-to-trade ratios, and real-time monitoring.

High-frequency trading (HFT) — a subset of algorithmic trading characterised by high message rates — is subject to additional requirements, including authorisation as an investment firm and mandatory market-making obligations for firms pursuing a market-making strategy.

The European Securities and Markets Authority (ESMA) has issued guidelines on algorithmic trading systems, including the requirement for firms to test algorithms in a segregated testing environment (conformance testing) before deployment.

Investor Protection — Conduct of Business

Articles 24 through 30 MiFID II substantially enhance investor protection. The rules are stratified by client type: eligible counterparties (the least protected), professional clients, and retail clients (the most protected). The key obligations include:

• Information to clients: firms must provide appropriate information about the firm, services, financial instruments, and costs and charges.
• Appropriateness and suitability: for non-advised services, firms must assess whether the service or product is appropriate for the client (appropriateness test). For investment advice and portfolio management, firms must assess whether the transaction is suitable for the client (suitability test).
• Best execution: firms must take all sufficient steps to obtain the best possible result for their clients, considering price, costs, speed, likelihood of execution and settlement, and any other relevant consideration.
• Inducements: the receipt of fees, commissions, or non-monetary benefits is permitted only where it enhances the quality of the service and does not impair compliance with the duty to act in the client’s best interests.

Product Governance

Article 16(3) and delegated regulations establish a product governance framework requiring manufacturers and distributors of financial instruments to ensure that products meet the needs of an identified target market. Products must be tested through scenario analysis and reviewed periodically. Where a product ceases to meet the target market’s needs, the manufacturer must take remedial action.

The product intervention powers under Articles 42 and 43 MiFIR allow ESMA, EBA, and EIOPA to temporarily prohibit or restrict the marketing, distribution, or sale of financial instruments where a significant investor protection concern or threat to financial stability arises.

Commodity Derivatives and Position Limits

MiFID II addresses concerns about speculation in commodity derivatives markets through a position limit regime (Articles 57 and 58 MiFID II). ESMA establishes position limits for commodity derivatives traded on trading venues, calculated on a net basis. Position management powers allow trading venues and competent authorities to require the reduction or closure of positions.

Transparency — Pre- and Post-Trade

MiFIR introduces comprehensive transparency requirements. Pre-trade transparency covers current bid and offer prices and the depth of trading interests for orders, with waivers available for large orders relative to normal market size. Post-trade transparency requires publication of price, volume, and time of executed transactions.

The double volume cap mechanism limits the use of the reference price and negotiated trade waivers to 4% of total trading in a given instrument per venue and 8% across the EU, to prevent excessive use of non-transparent trading methods.

Data Reporting Services and the Consolidated Tape

MiFID II establishes a framework for data reporting services providers (approved publication arrangements, consolidated tape providers, and approved reporting mechanisms). The creation of an EU consolidated tape — a real-time data feed aggregating pre- and post-trade data — has been mandated but implementation has been delayed, with ESMA selecting a consolidated tape provider for bonds in 2024.