How Frequently Does the Stock Price Jump? – An Analysis of High-Frequency Data with Microstructure Noises

Jin-Chuan Duan () and András Fülöp ()
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Jin-Chuan Duan: Joseph L. Rotman School of Management, University of Toronto
András Fülöp: ESSEC Paris and CREST.

No 2007/4, MNB Working Papers from Magyar Nemzeti Bank (Central Bank of Hungary)

Abstract: The stock price is assumed to follow a jump-diffusion process which may exhibit time-varying volatilities. An econometric technique is then developed for this model and applied to high-frequency time series of stock prices that are subject to microstructure noises. Our method is based on first devising a localized particle filter and then employing fixed-lag smoothing in the Monte Carlo EM algorithm to perform the maximum likelihood estimation and inference. Using the intra-day IBM stock prices, we find that high-frequency data are crucial to disentangling frequent small jumps from infrequent large jumps. During the trading sessions, jumps are found to be frequent but small in magnitude, which is in sharp contrast to infrequent but large jumps when the market is closed. We also find that at the 5- or 10-minute sampling frequency, the conclusion will critically depend on whether heavy-tailed microstructure noises have been accounted for. Ignoring microstructure noises can, for example, lead to an overestimation of the jump intensity of 50% or more.

Keywords: Particle filtering; jump-diffusion; maximum likelihood; EM-algorithm. (search for similar items in EconPapers)
JEL-codes: C22 (search for similar items in EconPapers)
Pages: 34 pages
Date: 2007
New Economics Papers: this item is included in nep-ecm, nep-mst and nep-rmg
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Citations: View citations in EconPapers (4)

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