English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Buy-backs of shares have impact on the stock prices, as it is demonstrated by several events in the history. This research is an attempt to validate the ‘Semi-strong form’ of market efficiency using Event analysis. The event considered in this paper is ‘The announcement of Buy-back of shares’ from January 2013 to December 2018. This event is tested for possibility of abnormal profits due to possibility non interpretation and non-reflection of news, in the stock prices. The data considered here is free from confounding events (highly turbulent period of -7 and +7 days from the event), -21 to +21 days’ window is considered for ‘Event Analysis’, since the period is enough for the system to adjust the noise (White Noise) created by this news. The results are calculated using paired t-test shows that the event hardly causes any impact on returns annulling the possibility of earning supernormal profits defining Semi-strong form of market efficiency.

An Analytical Study of Volatility of Stock Price to Establish the Efficiency of Stock Market