Order imbalance, market returns and volatility: evidence from Thailand during the Asian crisis

Nuttawat Visaltanachoti () and Robin Hang Luo

Applied Financial Economics, 2009, vol. 19, issue 17, 1391-1399

Abstract: This article examines the interaction between order imbalance, stock returns, volatility and volume dynamics during Asian financial crisis using intraday data of 418 stocks traded on the Stock Exchange of Thailand (SET) from January 1996 to October 2003. The inverse relationship between the past 30-min interval order imbalance and current stock return in both pre- and post-devaluation of baht indicates that aggregate investors are contrarians. During the currency crisis, aggregate investors are less contrarian compared to the pre-devaluation period. Moreover, excess sell orders have a stronger impact to future return than to the excess buy orders. During the financial crisis, future stock returns are sensitive to an increase in current excess sell orders, but are insensitive to the current excess buy orders. In addition to the positive volume-volatility relation, the influence of order imbalance to volatility is much weaker after controlling for the level of stock returns.

Date: 2009
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DOI: 10.1080/09603100802599522

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