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Firm-specific News and Anomalies

In: Investment Strategies in Emerging New Trends in Finance

Author

Listed:
  • Hai Hoang Van
  • Phan Kim Tuan
  • The Phiet Le

Abstract

This study investigates the relation between idiosyncratic volatility and future returns around the firm-specific news announcements in the Korean stock market from July 1995 to June 2018. The excess returns of decile portfolios that are formed by sorting the stocks based on news and non-news idiosyncratic volatility measures. The Fama and French three-factor model is also examined to see whether systematic risk affects news and non-news idiosyncratic volatility profits. The pricing of our news and non-news idiosyncratic volatility are confirmed in the cross-sectional regression using the Fama and MacBeth method. Market beta, size, book to market, momentum, liquidity, and maximum return are controlled to determine robustness. Our empirical evidence suggests that the pricing of the non-news idiosyncratic volatility is more strongly negative compared to the news idiosyncratic volatility, which is contrary to the limited arbitrage explanation for the negative price of the idiosyncratic volatility. We find that the non-news idiosyncratic volatility has a robust negative relation to returns in non-January months. Macro-finance factors drive the conditioned on the missing risk factor hypothesis, the pricing of idiosyncratic volatility. This study contributes to a better understanding of the role of the conditional idiosyncratic volatility in asset pricing. As the Korean stocks provide a fresh sample, our non-U.S. investigation delivers a useful out-of-sample test on the pervasiveness of the non-news volatility effect across the emerging markets.

Suggested Citation

  • Hai Hoang Van & Phan Kim Tuan & The Phiet Le, 2021. "Firm-specific News and Anomalies," Chapters, in: Reza Gharoie Ahangar & Asma Salman (ed.), Investment Strategies in Emerging New Trends in Finance, IntechOpen.
    • Handle: RePEc:ito:pchaps:218400
    DOI: 10.5772/intechopen.94286
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    Keywords

    idiosyncratic volatility; news idiosyncratic volatility; firm-specific news; macro-finance factors; Korea;
    All these keywords.

    JEL classification:

    • M21 - Business Administration and Business Economics; Marketing; Accounting; Personnel Economics - - Business Economics - - - Business Economics

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