Analysis of efficient market anomaly on stock returns on Indonesia's composite stock price index and global stock price index

Franciskus Jumintang and Kery Utami
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Franciskus Jumintang: UPN VETERAN JAKARTA
Kery Utami: UPN Veteran Jakarta

International Journal of Business Ecosystem & Strategy (2687-2293), 2022, vol. 4, issue 1, 57-67

Abstract: Market anomaly is an occurring phenomenon in the market. Supposedly, an anomaly does not exist in markets that are considered efficient. An anomaly is an aberration in the efficient market theory where existing information does not reflect stock prices; therefore, investors can earn abnormal returns. This study examines how The Day Of The Week Effect and The Month Of The Year Effect affect stock returns on the Indonesian Stock Price Index and the Global Stock Price Index. Samples in this study are daily stock return data and return data on stocks of IHSG, DJIA, SSEC, and N225. The Generalized Autoregressive Conditional Heteroscedasticity (GARCH) model is used to analyze data. The results show that in IHSG and SSEC, there was no The Day Of The Week Effect. The DJIA and N225 were found in The Day of the Week Effect. The Month of the Year Effect was found in IHSG, DJIA, SSEC, and N225.

Keywords: GARCH; Market Anomaly; Market Hypothesis; The Day Of The Week Effect; The Month Of The Year Effect (search for similar items in EconPapers)
Date: 2022
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