The Intensity of High-Frequency Feedback Trading and its Impact on Market Quality
40 Pages Posted: 17 Dec 2015
Date Written: December 16, 2015
Based on Level-2 transaction data of individual stocks in Chinese market, the paper constructs measures to directly estimate positive feedback trading intensity and its asymmetry in high-frequency intervals, and then investigates the impact of feedback trading on market quality. Heterogeneous positive feedback traders are found in high-frequency trading intervals of individual stocks, and the buying-winners effect is generally more intensive than selling-losers effect. The asymmetric positive feedback traders contribute to high volatility, high return autocorrelations, high variance ratios and low speed of price discovery. The asymmetry is positively related to aggressive trading orders and hence large price impact, while positive feedback trading reduces both liquidity provision and trading cost. Collectively, the high-frequency asymmetric positive feedback trading leads to an active-trading but less efficient market.
Keywords: Asymmetric positive feedback trading, individual stocks, high-frequency intervals, market quality
JEL Classification: G15
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