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11 janvier 2016
- handle: 10670/1.2s7b41
- hal: hal-01253615
info:eu-repo/semantics/OpenAccess
Mots-clés
market microstructure trading speed information asymmetry high frequency trading G - Financial Economics/G.G1 - General Financial Markets/G.G1.G11 - Portfolio Choice • Investment Decisions G - Financial Economics/G.G1 - General Financial Markets/G.G1.G12 - Asset Pricing • Trading Volume • Bond Interest Rates G - Financial Economics/G.G1 - General Financial Markets/G.G1.G14 - Information and Market Efficiency • Event Studies • Insider TradingCiter ce document
Albert Menkveld et al., « Need for Speed? Exchange Latency and Liquidity », HAL-SHS : droit et gestion, ID : 10670/1.2s7b41
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Résumé
Speeding up the exchange has a non-trivial effect on liquidity. On the one hand, more speed enables high-frequency market makers (HFMs) to update their quotes more quickly on incoming news. This reduces adverse-selection cost and lowers the competitive bid-ask spread. On the other hand, HFM price quotes are more likely to meet speculative high-frequency “bandits,” thus less likely to meet liquidity traders. This raises the spread. The net effect depends on a security’s news-to-liquidity-trader ratio. Empirical analysis of a NASDAQ-OMX speed upgrade shows that a faster market can indeed raise the spread and thus lower liquidity.