Quote-Based manipulation of illiquid securities

Ching Chau, Angelo Aspris, Sean Foley, Hamish Malloch

Research output: Contribution to journalLetter

Abstract

We document the effects of a manipulation akin to marking the close, conducted without any manipulative trades. Using prosecuted cases, we examine how manipulators can utilize periods of order-book illiquidity to navigate ill-conceived market design rules and influence security prices. Reference pricing, which has gained significant attention recently in interest rate and metals markets, is shown to contribute to significant increases in end of day returns for affected securities, with no observable subsequent reversals. We show that the price effects continue in the manipulated direction over extended periods, with average excess returns over 80% in the six months after manipulation.
Original languageEnglish
Article number101556
JournalFinance Research Letters
DOIs
Publication statusE-pub ahead of print - 20 May 2020

Keywords

  • Benchmarks
  • Closing price manipulation
  • Marking the close

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