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Trading Activity and Stock Price Volatility: Evidence from the London Stock Exchange

Roger D. Huang
University of Notre Dame

Ronald W. Masulis
Vanderbilt University - Owen Graduate School of Management; Vanderbilt University - School of Law; University of New South Wales - Australian School of Business



Journal of Empirical Finance, Vol. 10, No. 3, pp. 249-269, 2003

Abstract:     
Analysis of FTSE 100 stock transactions data reported by the London Stock Exchange shows that trade frequency and average trade size impact price volatility for small trades (i.e. trades of one NMS or less). For large trades, only trade frequency affects price volatility. In further splitting small trades by relative size, trade frequency and average trade size are found to affect price volatility only for trades close to stocks' maximum guaranteed quoted depth. This evidence is consistent with microstructure models of dealer inventory adjustment and strategic behavior by informed traders, where dealers and uninformed traders face adverse selection costs.

Keywords: Trading size, trading frequency, price volatility, London Stock Exchange, transactions data, informed trading, market microstructure models

JEL Classifications: G14, G12

Accepted Paper Series

Date posted: February 26, 2006 ; Last revised: February 26, 2006

Suggested Citation

Huang, Roger D. and Masulis, Ronald W., Trading Activity and Stock Price Volatility: Evidence from the London Stock Exchange. Journal of Empirical Finance, Vol. 10, No. 3, pp. 249-269, 2003. Available at SSRN: http://ssrn.com/abstract=884585


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Contact Information

Roger D. Huang (Contact Author)
University of Notre Dame ( email )
Mendoza College of Business
Notre Dame, IN 46556-5646
United States
574-631-6370 (Phone)
Ronald W. Masulis
Vanderbilt University - Owen Graduate School of Management ( email )
401 21st Avenue South
Nashville, TN 37203
United States
615-322-3687 (Phone)
615-343-7177 (Fax)
Vanderbilt University - School of Law
131 21st Avenue South
Nashville, TN 37203-1181
United States
University of New South Wales - Australian School of Business ( email )
Sydney, NSW 2052
Australia
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