Money market funds are explicitly identified as cash-equivalent products in the taxonomy, and this update directly regulates MMF stress testing requirements under EU MMF Regulation, satisfying the Strong Yes criteria for Cash Equivalents.
Mandatory inheritance: Cash Equivalents as the primary tag automatically triggers Investment Services as the secondary tag, as MMF managers are investment service providers managing client assets through these liquid instruments.
Specialism
The update establishes mandatory stress testing requirements and calibration parameters that MMF managers must conduct and report, which constitutes a core prudential standard for financial soundness and risk management.
Mandatory inheritance: Prudential Standards requires the parent tag Governance to be applied, as prudential rules fall under governance and internal accountability frameworks.
2026-03-27 09:14:10·adavies@vixio.com
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TITLE: European Securities and Markets Authority Issues Stress Testing Guidelines for Money Market Funds
BODY:
On March 26, 2026, the European Securities and Markets Authority (ESMA) published updated guidelines on stress testing scenarios for money market funds (MMFs) under Regulation (EU) 2017/1131 on Money Market Funds (MMF Regulation). These guidelines apply to competent authorities, MMFs, and MMF managers across the European Union.
The guidelines establish common reference parameters for stress test scenarios that MMF managers must conduct under Article 28 of the MMF Regulation. They address six key risk factors: changes in asset liquidity levels, credit risk changes (including credit events and rating changes), interest rate and exchange rate movements, redemption volumes, spreads between indices linked to securities interest rates, and macroeconomic systemic shocks affecting the broader economy.
The guidelines specify that MMF managers must perform both historical scenario analysis (based on past market events) and hypothetical scenario analysis (predicting potential future crises). Managers should test impacts on portfolio net asset value, liquidity classes, and their ability to meet investor redemption requests. The guidelines permit reverse stress testing to identify vulnerabilities and establish specific calibration parameters for each risk factor, updated in 2025 to reflect current market trends developed in cooperation with the European Central Bank (ECB) and the European Systemic Risk Board (ESRB).
Competent authorities must notify ESMA within two months of the guidelines' publication on ESMA's website in all EU official languages regarding their compliance status. The guidelines apply two months after publication, with certain sections already effective under Articles 44 and 47 of the MMF Regulation. MMF managers must incorporate these stress testing requirements into their regular reporting under Article 37 of the MMF Regulation.
REFERENCES:
European Securities and Markets Authority. (2026). Guidelines on stress test scenarios under the Money Market Funds Regulation. ESMA50-481369926-30848. Retrieved from https://www.esma.europa.eu