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Securing passive liquidity: The impact of Europe’s first asymmetric speed bump on market liquidity

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  • Le Moign, Caroline

Abstract

This study evaluates the impact of Europe’s first asymmetric speed bump, an order delay introduced by Eurex in 2019 for French equity options, as an innovative response to high-frequency trading externalities. Using a matched transaction-level database and a difference-in-difference strategy, we analyze liquidity changes on Eurex and its competitor Euronext. Results show significant improvements in Eurex liquidity, with decreased spreads and increased market depth. Notably, positive spillover effects were observed on Euronext for cross-listed options, with decreased spreads and an increase in aggressive HFT presence. These findings support the effectiveness of asymmetric speed bumps in mitigating latency arbitrage and enhancing market liquidity across competing platforms.

Suggested Citation

  • Le Moign, Caroline, 2025. "Securing passive liquidity: The impact of Europe’s first asymmetric speed bump on market liquidity," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 101(C).
    • Handle: RePEc:eee:intfin:v:101:y:2025:i:c:s1042443125000356
    DOI: 10.1016/j.intfin.2025.102145
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    Keywords

    Speed bump; Options; HFT; Latency arbitrage; Market quality; Liquidity;
    All these keywords.

    JEL classification:

    • D47 - Microeconomics - - Market Structure, Pricing, and Design - - - Market Design
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation

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