The impact of electronic trading on bid-ask spreads

Evidence from futures markets in Hong Kong, London, and Sydney

Michael J. Aitken, Alex Frino*, Amelia M. Hill, Elvis Jarnecic

*Corresponding author for this work

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

During 1999 and 2000, three major futures exchanges transferred trading in stock index futures from open outcry to electronic markets: the London International Financial Futures and Options Exchange (LIFFE); the Sydney Futures Exchange (SFE); and the Hong Kong Futures Exchange (HKFE). These changes provide unique natural experiments to compare relative bid-ask spreads of open outcry vs. electronically traded markets. This paper provides evidence of a decrease in bid-ask spreads following the introduction of electronic trading, after controlling for changes in price volatility and trading volume. This provides support for the proposition that electronic trading can facilitate higher levels of liquidity and lower transaction costs relative to floor traded markets. However, bid-ask spreads are more sensitive to price volatility in electronically traded markets, suggesting that the performance of electronic trading systems deteriorates during periods of information arrival.

Original languageEnglish
Pages (from-to)675-696
Number of pages22
JournalThe Journal of Futures Markets
Volume24
Issue number7
DOIs
Publication statusPublished - Jul 2004
Externally publishedYes

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