Extracting Information From the Limit Order Book: New Measures to Evaluate Equity Data Flow

Ye, Ziwen, and Ionuţ Florescu. "Extracting information from the limit order book: New measures to evaluate equity data flow." High Frequency 2.1: 37-47, 2019

20 Pages Posted: 20 Mar 2020

See all articles by Ziwen Ye

Ziwen Ye

Tsinghua University - Tsinghua University School of Economics and Management

Ionut Florescu

Stevens Institute of Technology - School of Business

Date Written: 2019

Abstract

In this research, we develop a set of new measures to evaluate the data flow in the U.S. equity exchanges using Level I order book data. The quantities we develop and use to summarize trading activity are: the activity-weighted spread and the activity-weighted return. We study the distribution of these two quantities and observe that there are significant changes in their behavior when equity markets are impacted by an external event. We focus the study on three exchanges: New York Stock Exchange (NYS), NASDAQ InterMarket (THM) and NYSE Arca (PSE) since they exhibit the largest impact to the proposed measures. We also study two different financial events which happened suddenly without any prior warning. These events are: May 6, 2010 the ``Flash Crash'', and April 23, 2013, the ``Hoax tweet'' event. Based on the results we obtain, the order flow dynamic is disturbed during these rare events. We quantify this change by measuring the number of detected ``anomalies'' for each exchange and equity studied. We believe the methodology we propose may be capable of detecting a potential unforecasted event as it is impacting the equity markets.

Keywords: High Frequency, Limit Order Book, Equity Exchanges, Data Flow Analysis, Statistics

Suggested Citation

Ye, Ziwen and Florescu, Ionut, Extracting Information From the Limit Order Book: New Measures to Evaluate Equity Data Flow (2019). Ye, Ziwen, and Ionuţ Florescu. "Extracting information from the limit order book: New measures to evaluate equity data flow." High Frequency 2.1: 37-47, 2019, Available at SSRN: https://ssrn.com/abstract=3544285

Ziwen Ye

Tsinghua University - Tsinghua University School of Economics and Management ( email )

Beijing
China

Ionut Florescu (Contact Author)

Stevens Institute of Technology - School of Business ( email )

Hoboken, NJ 07030
United States

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