Anonymity, liquidity and fragmentation

We examine the effects of the removal of broker identifiers from the central limit order book of the Australian Stock Exchange. We find that spreads and order aggressiveness decline, and order book depth increases, with the introduction of anonymous trading. This is consistent with the hypothesis that limit order traders are more willing to expose their orders when they can do so anonymously. Anonymous markets attract order flow from non-anonymous substitute markets, but this effect is only seen in large stocks. Our results suggest that exchanges operating in fragmented markets should consider anonymous trading to improve price competition and liquidity, although some of these benefits may be significant only if the stocks are sufficiently large and liquid.

[1]  Gideon Saar.  Price Impact Asymmetry of Block Trades: An Institutional Trading Explanation , 1999 .

[2]  L. Harris.  Does a Large Minimum Price Variation Encourage Order Exposure , 1996 .

[3]  E. Theissen.  Floor Versus Screen Trading: Evidence from the German Stock Market , 1999 .

[4]  Maureen O'Hara,et al.  Can transparent markets survive , 2000 .

[5]  Charles M. C. Lee,et al.  Inferring Trade Direction from Intraday Data , 1991 .

[6]  George Sofianos,et al.  New York Stock Exchange Systems and Trading Procedures , 1996 .

[7]  G. Gemmill.  Transparency and Liquidity: A Study of Block Trades on the London Stock Exchange under Different Publication Rules , 1996 .

[8]  L. Harris.  Minimum Price Variations, Discrete Bid-Ask Spreads, and Quotation Sizes , 1994 .

[9]  Alan J. Marcus,et al.  What's special about the specialist? , 1992 .

[10]  Michael S. Piwowar,et al.  Secondary Trading Costs in the Municipal Bond Market , 2006 .

[11]  Ananth N. Madhavan,et al.  Consolidation, Fragmentation, and the Disclosure of Trading Information , 1995 .

[12]  Anonymity, Adverse Selection, and the Sorting of Interdealer Trades , 2005 .

[13]  Herbert M. Kaufman,et al.  A Comparison of Trade Execution Costs for NYSE and NASDAQ-Listed Stocks , 1997, Journal of Financial and Quantitative Analysis.

[14]  R. A. Schwartz,et al.  The Economic Value of a Trading Floor: Evidence from the American Stock Exchange , 2002 .

[15]  Robert J. Bloomfield,et al.  The 'Make or Take' Decision in an Electronic Market: Evidence on the Evolution of Liquidity , 2002 .

[16]  Angelo Ranaldo,et al.  Order aggressiveness in limit order book markets , 2004 .

[17]  Thomas H. McInish,et al.  An Analysis of Intraday Patterns in Bid/Ask Spreads for NYSE Stocks , 1992 .

[18]  Jerold B. Warner,et al.  Stock prices and top management changes , 1988 .

[19]  Michael R. Gibbons,et al.  Subperiod aggregation and the power of multivariate tests of portfolio efficiency , 1987 .

[20]  Lawrence Harris,et al.  Order Exposure and Parasitic Traders , 1997 .

[21]  Duane J. Seppi.  Equilibrium Block Trading and Asymmetric Information , 1990 .

[22]  Chester Spatt,et al.  An Empirical Analysis of the Limit Order Book and the Order Flow in the Paris Bourse , 1995 .

[23]  Dan Galai,et al.  Information Effects on the Bid‐Ask Spread , 1983 .

[24]  Nikolaus Hautsch,et al.  Order aggressiveness and order book dynamics , 2004 .

[25]  Ananth Madhavan,et al.  In Search of Liquidity: Block Trades in the Upstairs and Downstairs Markets , 1997 .

[26]  Quote setting and price formation in an order driven market , 2003 .

[27]  Thomas J. George,et al.  Anonymity in securities markets , 1992 .

[28]  Kee H. Chung,et al.  Limit Orders and the Bid-Ask Spread , 1999 .

[29]  Terrence Hendershott,et al.  Competition among Trading Venues: Information and Trading on Electronic Communications Networks , 2003 .

[30]  Gideon Saar,et al.  Lifting the Veil: An Analysis of Pre-Trade Transparency at the Nyse , 2003 .

[31]  Michael S. Piwowar,et al.  Corporate Bond Market Transaction Costs and Transparency , 2007 .

[32]  Thierry Foucault,et al.  Does Anonymity Matter in Electronic Limit Order Markets? , 2002 .

[33]  Michael D. Perlman,et al.  Combining Independent Chi-Squared Tests , 1978 .

[34]  Louis K.C. Chan,et al.  Institutional trades and intraday stock price behavior , 1991 .

[35]  Hendrik Bessembinder,et al.  Market Transparency, Liquidity Externalities, and Institutional Trading Costs in Corporate Bonds , 2005 .

[36]  E. Theissen,et al.  Knowing Me, Knowing You: Trader Anonymity and Informed Trading in Parallel Markets * , 2001 .

[37]  Joel Hasbrouck,et al.  Measuring the Information Content of Stock Trades , 1991 .

[38]  David K. Whitcomb,et al.  Market Maker Quotation Behavior and Pretrade Transparency , 2003 .

[39]  Sanford J. Grossman.  The Informational Role of Upstairs and Downstairs Trading , 1992 .

[40]  Mark D. Flood,et al.  Quote Disclosure and Price Discovery in Multiple-Dealer Financial Markets , 1999 .

[41]  Hans G. Heidle,et al.  Information-Based Trading in Dealer and Auction Markets: An Analysis of Exchange Listings , 2001 .

[42]  Alan Kraus,et al.  PRICE IMPACTS OF BLOCK TRADING ON THE NEW YORK STOCK EXCHANGE , 1972 .

[43]  Hendrik Bessembinder,et al.  Does an Electronic Stock Exchange Need an Upstairs Market , 2002 .

[44]  Jerold B. Warner,et al.  On corporate governance: A study of proxy contests , 1983 .

[45]  Andrew Ellul,et al.  Reputation Effects in Trading on the New York Stock Exchange , 2005 .

[46]  L. Meulbroek,et al.  An Empirical Analysis of Illegal Insider Trading , 1992 .

[47]  A. Christie,et al.  Aggregation of test statistics: An evaluation of the evidence on contracting and size hypotheses , 1990 .

[48]  H. Stoll,et al.  Dealer versus auction markets: A paired comparison of execution costs on NASDAQ and the NYSE , 1996 .