Jurnal Riset Akuntansi Kontemporer
Vol 17 No 2 (2025): October Edition

BEYOND THE EFFICIENT MARKET HYPOTHESIS: A CONCEPTUAL INQUIRY INTO CALENDAR ANOMALIES

Shehryar, Muhammad (Unknown)
Mardoni, Yosi (Unknown)
Anser, Muhammad (Unknown)



Article Info

Publish Date
13 Oct 2025

Abstract

Calendar anomalies, including the day-of-the-week effect, week-of-the-month effect, and January effect, persistently contest the efficient market hypothesis (EMH), which asserts that asset prices completely incorporate available information. This study reviews previous research to explore why these predictable patterns persist despite technological progress and market transparency. By combining perspectives from EMH, behavioral finance, and the adaptive market hypothesis (AMH), the study explains the temporal variability of these anomalies across different market contexts. Results demonstrate that investor sentiment, cognitive biases, and socio-cultural influences largely contribute to their persistence. The discourse encompasses practical implications for investment strategy, portfolio management, and regulatory surveillance, particularly highlighting Shariah-compliant and emerging markets where anomalies may display unique attributes. Investors, mutual funds, and brokers can gain benefit through generating higher returns.

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Journal Info

Abbrev

jrak

Publisher

Subject

Economics, Econometrics & Finance

Description

Jurnal Riset Akuntansi Kontemporer invites manuscripts in the various topics include, but not limited to, functional areas of International and financial accounting; Management and cost accounting; Tax; Auditing; Accounting information systems; Accounting education; Environmental and social ...