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Adjustment of stock prices to earnings announcements: evidence from Euronext Paris

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  • Waël Louhichi

Abstract

Purpose - The aim of this paper is to study both the information content of accounting figures and the speed at which the new information is incorporated into stock prices. Design/methodology/approach - The sample is composed of 117 overnight announcements published by Reuters during the period 2001‐2003. For every date, the event is classified into one of three categories: good news, bad news or no news. The paper uses intraday event study methodology to examine market reaction just before and just after the event. Findings - The intraday analysis reveals several results. Firstly, investors react positively to good news and negatively to bad news. Secondly, abnormal returns dissipate within 15 min. Thirdly, prices converge to equilibrium more quickly for good news than for bad news. Fourthly, we present evidence of price reversal 30 min following bad news announcements. Finally, earnings releases are accompanied by a rise in volume which remains even after the equilibrium price is attained. Research limitations/implications - Price discovery is analyzed only in the stock market. It is pertinent to verify if the option market and foreign markets can contribute to the incorporation of new information into stock prices. Practical implications - This work can help investors to determine their trading strategies around earnings announcements. The paper shows that it is not possible to realize trading profits after 15 min following the time of the announcement. Originality/value - The study contributes to both financial accounting and microstructure literature. First, it focuses on the information content of accounting figures using very short horizon (intraday analysis). Second, the paper sheds light on the role of the Euronext preopening period in the incorporation of the overnight information flow.

Suggested Citation

  • Waël Louhichi, 2008. "Adjustment of stock prices to earnings announcements: evidence from Euronext Paris," Review of Accounting and Finance, Emerald Group Publishing Limited, vol. 7(1), pages 102-115, February.
    • Handle: RePEc:eme:rafpps:v:7:y:2008:i:1:p:102-115
    DOI: 10.1108/14757700810853879
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    Citations

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    Cited by:

    1. Tchai Tavor, 2023. "The effect of natural gas discoveries in Israel on the strength of its currency," Australian Economic Papers, Wiley Blackwell, vol. 62(2), pages 236-256, June.
    2. Aziz Simsir, Serif & Simsek, Koray D., 2022. "The market impact of private information before corporate Announcements: Evidence from Turkey," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 80(C).
    3. Ersan, Oguz & Simsir, Serif Aziz & Simsek, Koray D. & Hasan, Afan, 2021. "The speed of stock price adjustment to corporate announcements: Insights from Turkey," Emerging Markets Review, Elsevier, vol. 47(C).
    4. M. Jayasree, 2017. "Stock Trading and Stock Returns: Understanding the Distributional Properties of the Numbers—The Evidence from India Nifty Fifty," Jindal Journal of Business Research, , vol. 6(2), pages 171-185, December.
    5. Zubair Tanveer, 2021. "Speed of Adjustment of Stock Returns Around Dividend Announcements in Pakistan," Asian Economics Letters, Asia-Pacific Applied Economics Association, vol. 2(4), pages 1-5.

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