Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal International Journal of Management Science and Information Technology (IJMSIT)
Try Junanto
Universitas Pakuan
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
The Impact of The Proper Gold Rating Announcement on Stock Prices of Companies Listed on The IDX In 2023 Try Junanto; Retno Martanti Endah Lestari; Mutiara Puspa Widyowati; Herdiyana Herdiyana
International Journal of Management Science and Information Technology Vol. 6 No. 2 (2026): July - December 2026
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA), Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijmsit.v6i2.7953

Abstract

Environmental degradation caused by industrial activities has led the Indonesian government to introduce the Company Performance Rating Program (PROPER), with the gold rating as its highest recognition. This study examines the effect of the PROPER Gold announcement (December 20, 2023) on the stock prices of companies listed on the Indonesia Stock Exchange. The research applies an event study method with a causal-comparative approach. The observation window spans 15 trading days (t−7 to t+7), involving 8 companies awarded the PROPER Gold rating in 2023, selected through purposive sampling. Daily closing stock prices were obtained from IDX publications. The Kolmogorov-Smirnov test was employed to assess data normality, and the Wilcoxon Signed Rank Test was used for non-normal distributions. Descriptive analysis was conducted to observe stock price trends before and after the event. Results indicate a tendency for stock price increases after the announcement, with a statistically significant difference between pre- and post-event prices, reflecting a positive market response.
Co-Authors herdiyana, Herdiyana Mutiara Puspa Widyowati Retno Martanti Endah Lestari