T+1 trading mechanism causes negative overnight return |
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| Institution: | 1. University of Tunis, High Institute of Management, Tunis, Tunisia;2. College of Business Administration, AlBaha University, Saudi Arabia;3. Univ. Manouba, ESCT, RIM RAF, UR13ES56, Tunisia;4. University of Jeddah, College of Business, Department of Accounting, Jeddah, Saudi Arabia;5. University of Tunis, ISG, GEF-2A Lab, Tunis, Tunisia;6. University of Manouba, ESC, Manouba, Tunisia;1. European Commission, DG Joint Research Centre, Via Fermi 2749, I-21027, Ispra VA, Italy;2. Inter-American Development Bank, Calle 50 con Elvira Méndez, Tower Bank, Floor 23, Panama City, Panama;1. Department of Humanities and Social Sciences, Indian Institute of Technology Kharagpur, India;2. Indira Gandhi Institute of Development Research, Mumbai, India;1. European University at St. Petersburg, 6/1A Gagarinskaya Str., St. Petersburg, 191187, Russia;2. Department of Economics, Feliciano School of Business, Montclair State University, Montclair, NJ, USA;1. Universidad Autónoma de Madrid, Spain;2. Universidad Complutense de Madrid, Spain |
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| Abstract: | The T+1 trading mechanism is unique in the Chinese stock market, thus providing a natural experimental field to study the trading mechanism and price behaviors. This paper proposes and proves that T+1 trading mechanism causes negative overnight return, the overnight return can serve as a proxy of the T+1 trading mechanism. The paper finds that the overnight return of the Chinese stock market is significantly negative, whereas those under the T+0 trading mechanism, such as China’s stock index futures, Hong Kong stocks, and major international indices, all have around 0 or positive overnight returns. T+1 trading mechanism has greater impacts on stocks with more divergent investor opinions, higher risk, more individual investor percentages, higher arbitrage restrictions, and less liquidity. The T+1 trading mechanism distorts the price generation mechanism of stocks. The paper contributes to the understanding of impact of trading mechanism on stock prices. |
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| Keywords: | T+1 trading mechanism Overnight return Stock market |
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