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Throttling hyperactive robots - Message to trade ratios at the Oslo Stock Exchange

Author

Listed:
  • Jørgensen, Kjell

    () (Norwegian Business School (BI) and University of Stavanger)

  • Skjeltorp, Johannes Atle

    () (Norges Bank)

  • Ødegaard, Bernt Arne

    () (University of Stavanger (UiS) and Norwegian School of Economics (NHH))

Abstract

We use the introduction of a cost on high message to trade ratios for traders at the Oslo Stock Exchange to investigate the effects on market quality and fragmentation of introduction of such ``speed bumps'' to equity trading. The exchange introduced a fee payable by market participants whose orders (messages to the exchange's trade system) exceeded seventy times the number of consummated trades. Market participants quickly adjusted their behavior to avoid paying the extra cost. The overall ratios of messages to trades fell, but common measures of the quality of trading, such as liquidity, transaction costs, and realized volatility, did not deteriorate, they were essentially unchanged. This is a policy intervention where we can match the treated sample (OSE listed stocks) with the same assets traded elsewhere. We can therefore do a ``diff in diff'' analysis of liquidity in Oslo compared with liquidity of the same asset traded on other exchanges. Surprisingly, we see that liquidity, as measured by the spread, deteriorated on alternative market places when the tax was introduced, a tax that is only valid for trading at the OSE. The spread is the only liquidity measure for which we observe this difference between the OSE and other markets, for depth and turnover we do not find any differences between other markets and the OSE.

Suggested Citation

  • Jørgensen, Kjell & Skjeltorp, Johannes Atle & Ødegaard, Bernt Arne, 2014. "Throttling hyperactive robots - Message to trade ratios at the Oslo Stock Exchange," UiS Working Papers in Economics and Finance 2014/3, University of Stavanger.
  • Handle: RePEc:hhs:stavef:2014_003
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    References listed on IDEAS

    as
    1. Biais, Bruno & Foucault, Thierry & Moinas, Sophie, 2015. "Equilibrium fast trading," Journal of Financial Economics, Elsevier, vol. 116(2), pages 292-313.
    2. Naes, Randi & Skjeltorp, Johannes A., 2006. "Order book characteristics and the volume-volatility relation: Empirical evidence from a limit order market," Journal of Financial Markets, Elsevier, vol. 9(4), pages 408-432, November.
    3. Menkveld, Albert J., 2013. "High frequency trading and the new market makers," Journal of Financial Markets, Elsevier, vol. 16(4), pages 712-740.
    4. Umlauf, Steven R., 1993. "Transaction taxes and the behavior of the Swedish stock market," Journal of Financial Economics, Elsevier, vol. 33(2), pages 227-240, April.
    5. Øyvind Bøhren & Bernt Arne Ødegaard, 2001. "Patterns of Corporate Ownership: Insights from a unique data set," Nordic Journal of Political Economy, Nordic Journal of Political Economy, vol. 27, pages 55-86.
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    Citations

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    Cited by:

    1. Friederich, Sylvain & Payne, Richard, 2015. "Order-to-trade ratios and market liquidity," Journal of Banking & Finance, Elsevier, vol. 50(C), pages 214-223.
    2. Meling, Tom Grimstvedt & Odegaard, Bernt Arne, 2016. "Tick Size Wars," UiS Working Papers in Economics and Finance 2016/15, University of Stavanger.

    More about this item

    Keywords

    High Frequency Trading; Regulation; Message to Trade Ratio; Order to Trade Ratio;

    JEL classification:

    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G20 - Financial Economics - - Financial Institutions and Services - - - General

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