L'importance de la note initiale et du type de changement dans la mesure de l'impact de la notation financière (rating) sur le marché actions
This article brings new lines of inquiry relating to the surplus informational announcements actually issued by the rating agencies for financial different players in the stock market. Thus, it offers a different and complementary perpspective to the previous studies focused primarily on a global analysis of events in a dual operating segmentation by type of downgrading by notes of the issuer prior to the announcement. The study is based on all the negative changes made by the three major agencies worldwide for 440 large european capitalization components major stock indexes national and sectoral over the period 1998-2006. Ultimately, 723 studies of events of 212 different companies were performed and the results and analysis have been validated by a dozen interviews. In addition to the affirmation of abnormal returns negative averages for the period [+1,-1] trading days around the date of the announcement, the research shows the slightest market anticipation for declines in perspective than for decreases notes. In addition, the class is more discriminating that the note itself and the lower the credit rating is less than A- the higher is the impact on the stock market. It is, with the last note of the investment grade BBB-, the two key thresholds of the rating scale. Finally, the magnitude of the reaction of creditwatch negative appears totally independent of the initial rating.
|Date of creation:||2008|
|Date of revision:|
|Publication status:||Published in Conférence annuelle AFFI 2008, 2008, Lille, France. n.p., 2008|
|Note:||View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00692578|
|Contact details of provider:|| Web page: https://hal.archives-ouvertes.fr/|
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Norden, Lars & Weber, Martin, 2004.
"Informational Efficiency of Credit Default Swap and Stock Markets: The Impact of Credit Rating Announcements,"
CEPR Discussion Papers
4250, C.E.P.R. Discussion Papers.
- Norden, Lars & Weber, Martin, 2004. "Informational efficiency of credit default swap and stock markets: The impact of credit rating announcements," Journal of Banking & Finance, Elsevier, vol. 28(11), pages 2813-2843, November.
- Brown, Stephen J. & Warner, Jerold B., 1985. "Using daily stock returns : The case of event studies," Journal of Financial Economics, Elsevier, vol. 14(1), pages 3-31, March.
- Griffin, Paul A & Sanvicente, Antonio Z, 1982. " Common Stock Returns and Rating Changes: A Methodological Comparison," Journal of Finance, American Finance Association, vol. 37(1), pages 103-19, March.
- Michael Spence, 1973. "Job Market Signaling," The Quarterly Journal of Economics, Oxford University Press, vol. 87(3), pages 355-374.
- Fama, Eugene F, 1991. " Efficient Capital Markets: II," Journal of Finance, American Finance Association, vol. 46(5), pages 1575-617, December.
- Hervé Alexandre & Maxime Merli, 2003. "Notations et écarts de rentabilité:le marché français avant l'euro," Revue Finance Contrôle Stratégie, revues.org, vol. 6(3), pages 5-22, September.
- Ederington, Louis H. & Goh, Jeremy C., 1998. "Bond Rating Agencies and Stock Analysts: Who Knows What When?," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 33(04), pages 569-585, December.
- Ilia D. Dichev, 2001. "The Long-Run Stock Returns Following Bond Ratings Changes," Journal of Finance, American Finance Association, vol. 56(1), pages 173-203, 02.
- Holthausen, Robert W. & Leftwich, Richard W., 1986. "The effect of bond rating changes on common stock prices," Journal of Financial Economics, Elsevier, vol. 17(1), pages 57-89, September.
- Hand, John R M & Holthausen, Robert W & Leftwich, Richard W, 1992. " The Effect of Bond Rating Agency Announcements on Bond and Stock Prices," Journal of Finance, American Finance Association, vol. 47(2), pages 733-52, June.
When requesting a correction, please mention this item's handle: RePEc:hal:journl:halshs-00692578. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (CCSD)
If references are entirely missing, you can add them using this form.