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Assessing Measures of Order Flow Toxicity via Perfect Trade Classification

Torben Andersen () and Oleg Bondarenko ()
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Oleg Bondarenko: University of Illinois at Chicago, Postal: 601 South Morgan Street, Room 2431, Chicago, IL 60607-7124 United States

CREATES Research Papers from Department of Economics and Business Economics, Aarhus University

Abstract: The VPIN, or Volume-synchronized Probability of INformed trading, metric is introduced by Easley, Lopez de Prado and O'Hara (ELO) as a real-time indicator of order flow toxicity. They find the measure useful in predicting return volatility and conclude it may help signal impending market turmoil. The VPIN metric involves decomposing volume into active buys and sells. We use the best-bid-offer (BBO) files from the CME Group to construct (near) perfect trade classification measures for the E-mini S&P 500 futures contract. We investigate the accuracy of the ELO Bulk Volume Classification (BVC) scheme and find it inferior to a standard tick rule based on individual transactions. Moreover, when VPIN is constructed from accurate classification, it behaves in a diametrically opposite way to BVC-VPIN. We also find the latter to have forecast power for short-term volatility solely because it generates systematic classification errors that are correlated with trading volume and return volatility. When controlling for trading intensity and volatility, the BVC-VPIN measure has no incremental predictive power for future volatility. We conclude that VPIN is not suitable for measuring order flow imbalances.

Keywords: VPIN; Accuracy of Trade Classification; Order Flow Toxicity; Order Imbalance; Volatility Forecasting (search for similar items in EconPapers)
JEL-codes: C58 G01 G12 G14 G17 (search for similar items in EconPapers)
Pages: 46
Date: 2013
New Economics Papers: this item is included in nep-for and nep-mst
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