Buy Low Sell High: A High Frequency Trading Perspective
University College London - Department of Mathematics
University of Toronto - Department of Statistics
University of Toronto, Department of Statistics
November 25, 2011
We develop a High Frequency (HF) trading strategy where the HF trader uses her superior speed to process information and to post limit sell and buy orders. By introducing a multi-factor self-exciting process we allow for feedback effects in market buy and sell orders and the shape of the limit order book (LOB). Our model accounts for arrival of market orders that influence activity, trigger one-sided and two-sided clustering of trades, and induce temporary changes in the shape of the LOB. We also model the impact that market orders and news have on the short-term drift of the midprice (short-term-alpha). We show that HF traders who do not include predictors of short-term-alpha in their strategies are driven out of the market because they are adversely selected by better informed traders and because they are not able to profit from directional strategies.
Number of Pages in PDF File: 41
Keywords: Algorithmic Trading, High Frequency Trading, Short Term Alpha, Adverse Selection, Self-Exciting Processes, Hawkes processes
JEL Classification: C6, C61, C63, G1, G10, G12, G17, G60working papers series
Date posted: November 26, 2011 ; Last revised: December 31, 2012
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