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Post-announcement drift in an emerging market

Post-announcement drift in an emerging market This research discovers a possible pattern of market response to the degree of interim disclosure. All of the interim reports submitted by non-financial sector listed firms on the Helsinki Exchanges over the period 1985–1993 are examined. When a 20-day post-announcement period is clustered in five-day blocks, a possible pattern emerges. That pattern may be characterised as: event, the initial response on the day of the announcement; reaction, the market's response from the first one to three days, depending upon the degree of disclosure; association, the market's response as it gropes for the intrinsic value of the reporting security. The complete market response cycle, consisting of the entire year's information flow, may be characterised chronologically as: anticipation; event; reaction; adjustment; association; transition. The implications are that similar patterns may exist in other emerging markets and even in mature markets. It is expected that the magnitudes and speeds of adjustment will be time and venue specific, but that the elements and sequence of the pattern will be universal. It is further expected that the degree of interim disclosure will exercise some influence over the magnitude and timing of the sequence. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Accounting, Auditing and Performance Evaluation Inderscience Publishers

Post-announcement drift in an emerging market

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Publisher
Inderscience Publishers
Copyright
Copyright © Inderscience Enterprises Ltd. All rights reserved
ISSN
1740-8008
eISSN
1740-8016
Publisher site
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Abstract

This research discovers a possible pattern of market response to the degree of interim disclosure. All of the interim reports submitted by non-financial sector listed firms on the Helsinki Exchanges over the period 1985–1993 are examined. When a 20-day post-announcement period is clustered in five-day blocks, a possible pattern emerges. That pattern may be characterised as: event, the initial response on the day of the announcement; reaction, the market's response from the first one to three days, depending upon the degree of disclosure; association, the market's response as it gropes for the intrinsic value of the reporting security. The complete market response cycle, consisting of the entire year's information flow, may be characterised chronologically as: anticipation; event; reaction; adjustment; association; transition. The implications are that similar patterns may exist in other emerging markets and even in mature markets. It is expected that the magnitudes and speeds of adjustment will be time and venue specific, but that the elements and sequence of the pattern will be universal. It is further expected that the degree of interim disclosure will exercise some influence over the magnitude and timing of the sequence.

Journal

International Journal of Accounting, Auditing and Performance Evaluation – Inderscience Publishers

Published: Jan 1, 2005

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