The calendar anomalies on Warsaw Stock Exchange

Michał Łukowski


Calendar anomalies are defined as any seasonal tendency that occurs in stock markets on a monthly, daily or intra-daily basis. This paper is an attempt to verify if selected calendar effects are present on the Warsaw Stock Exchange (WSE) for each level of data aggregation and to compare their strength in the case of big cap and small cap listed companies, as well as the main indices. I use daily data from 2014–2019 for stock market indices and randomly chosen companies listed on the WIG20 and the sWIG80 and intraday data from March to June 2019 for the same companies. Later, I employ Markov- -switching GARCH models in order to verify seasonal effects of each frequency. The conducted research proved that seasonal anomalies are present on the WSE but they mainly concern small cap companies and indices on which they are listed. On the basis of the obtained results I try to identify triggers of the calendar anomalies on the WSE.
Author Michał Łukowski (WE / KTPiPP)
Michał Łukowski,,
- Department of Money Theory and Monetary Policy
Journal seriesBank i Kredyt, ISSN 0137-5520, (N/A 40 pkt)
Issue year2019
Publication size in sheets1.05
Keywords in Polishanomalie kalendarzowe, finanse behawioralne, modele MS-GARCH, Giełda Papierów Wartościowych w Warszawie
Keywords in Englishcalendar anomalies, behavioral finance, MS-GARCH models, Warsaw Stock Exchange
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 06-04-2020, ArticleFromJournal
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