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Trading Foreign Exchange Triplets

Author

Listed:
  • 'Alvaro Cartea
  • Sebastian Jaimungal
  • Tianyi Jia

Abstract

We develop the optimal trading strategy for a foreign exchange (FX) broker who must liquidate a large position in an illiquid currency pair. To maximize revenues, the broker considers trading in a currency triplet which consists of the illiquid pair and two other liquid currency pairs. The liquid pairs in the triplet are chosen so that one of the pairs is redundant. The broker is risk-neutral and accounts for model ambiguity in the FX rates to make her strategy robust to model misspecification. When the broker is ambiguity neutral (averse) the trading strategy in each pair is independent (dependent) of the inventory in the other two pairs in the triplet. We employ simulations to illustrate how the robust strategies perform. For a range of ambiguity aversion parameters, we find the mean Profit and Loss (P&L) of the strategy increases and the standard deviation of the P&L decreases as ambiguity aversion increases.

Suggested Citation

  • 'Alvaro Cartea & Sebastian Jaimungal & Tianyi Jia, 2020. "Trading Foreign Exchange Triplets," Papers 2004.12011, arXiv.org.
    • Handle: RePEc:arx:papers:2004.12011
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    References listed on IDEAS

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    1. Daniel J. Fenn & Sam D. Howison & Mark Mcdonald & Stacy Williams & Neil F. Johnson, 2009. "The Mirage Of Triangular Arbitrage In The Spot Foreign Exchange Market," International Journal of Theoretical and Applied Finance (IJTAF), World Scientific Publishing Co. Pte. Ltd., vol. 12(08), pages 1105-1123.
    2. Oomen, Roel, 2017. "Execution in an aggregator," LSE Research Online Documents on Economics 67454, London School of Economics and Political Science, LSE Library.
    3. Roel Oomen, 2017. "Execution in an aggregator," Quantitative Finance, Taylor & Francis Journals, vol. 17(3), pages 383-404, March.
    4. Jean-Pierre Fouque & Ronnie Sircar & Thaleia Zariphopoulou, 2017. "Portfolio Optimization And Stochastic Volatility Asymptotics," Mathematical Finance, Wiley Blackwell, vol. 27(3), pages 704-745, July.
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    Cited by:

    1. Philippe Bergault & Leandro S'anchez-Betancourt, 2024. "A Mean Field Game between Informed Traders and a Broker," Papers 2401.05257, arXiv.org.

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