How Do Individual Investors Trade?

35 Pages Posted: 20 Jan 2010 Last revised: 18 Feb 2010

See all articles by Ingmar Nolte

Ingmar Nolte

Lancaster University - Department of Accounting and Finance

Sandra Nolte (Lechner)

Lancaster University Management School

Date Written: February 17, 2010

Abstract

This paper examines how high-frequency trading decisions of individual investors are influenced by past price changes. Specifically, we address the question as to whether decisions to open or close a position are different when investors already hold a position compared to when they don't. Based on a unique dataset from an electronic foreign exchange trading platform, OANDA FXTrade, we find that investors' future order flow is (significantly) driven by past price movements and that these predictive patterns last up to several hours. This observation clearly shows that for high-frequency trading, investors rely on previous price movements in making future investment decisions. We provide clear evidence that market and limit orders flows are much more predictable if those orders are submitted to close an existing position than if they are used to open one. We interpret this finding as evidence for the existence of a monitoring effect, which has implications for theoretical market microstructure models and behavioral finance phenomena, such as the endowment effect.

Keywords: Trading Activity Dataset, Order Flow, Foreign Exchange Market, Monitoring Effect

JEL Classification: G10, F31, C32

Suggested Citation

Nolte, Ingmar and Nolte (Lechner), Sandra, How Do Individual Investors Trade? (February 17, 2010). Available at SSRN: https://ssrn.com/abstract=1538760 or http://dx.doi.org/10.2139/ssrn.1538760

Ingmar Nolte (Contact Author)

Lancaster University - Department of Accounting and Finance ( email )

Lancaster, Lancashire LA1 4YX
United Kingdom

Sandra Nolte (Lechner)

Lancaster University Management School ( email )

Lancaster, Lancashire LA1 4YX
United Kingdom

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