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All Journal Jurnal Ekonomi dan Bisnis Jagaditha Jurnal Manajemen Pendidikan IJBE (Integrated Journal of Business and Economics) Dinasti International Journal of Education Management and Social Science Jurnal Pengabdian kepada Masyarakat International Journal of Applied Business and International Management Jurnal Polimesin Greenation International Journal of Economics and Accounting Dinasti Accounting Review Fibonacci : Jurnal Ilmu Ekonomi, Manajemen dan Keuangan BORJUIS (JURNAL OF ECONOMY) IJEMA
Jhonni Sinaga
Dosen Fakultas Ekonomi Dan Bisnis, Universitas Bhayangkara Jakarta Raya, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Analisis Pembentukan Portofolio Optimal Saham-Saham Big Bank di LQ-45 Menggunakan Model Elton dan Gruber di Bursa Efek Indonesia Periode 2019-2023 Friska Monika Sari Siagian; Muhammad Richo Rianto; Jhonni Sinaga; Adler Haymans Manurung
Fibonacci: Jurnal Ilmu Ekonomi, Manajemen dan Keuangan Vol. 1 No. 3 (2025): Fibonacci: Jurnal Ilmu Ekonomi, Manajemen, dan Keuangan
Publisher : Yayasan Inovasi Akademi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63217/fibonacci.v1i3.117

Abstract

Analysis of Optimal Portfolio Formation of Big Bank Stocks in LQ-45 Using the Elton and Gruber Model on the Indonesia Stock Exchange for the 2019-2023 Period. This study aims to analyze the management of stock portfolios on the Indonesia Stock Exchange using the Elton and Gruber Model, focusing on Big Bank stocks included in the LQ-45 stock index during the 2019-2023 period. This study uses monthly data for the 2019-2023 period, with data analysis techniques using Microsoft Excel. The results of this study found that there were 3 stocks included in the optimal portfolio with an Excess Return to Beta (ERB) value greater than the Cut-Off Rate (CI), namely; Bank Central Asia Tbk (BBCA), Bank Rakyat Indonesia Persero (BBRI) and Bank Mandiri (Persero) Tbk (BMRI). The results show that the optimal portfolio is formed by stocks that have high returns at relatively the same risk level.
MODERASI HARGA JUAL JASA KONSULTAN TERHADAP KEPUTUSAN MENGGUNAKAN JASA KONSULTAN BERBASIS DETERMINAN KEPUTUSAN MENGGUNAKAN JASA KONSULTAN (Studi Kasus PT. Pelita Sarana Indotama) Muthia Aminie; Jhonni Sinaga; Supriyanto
Jurnal Manajemen Pendidikan Vol. 11 No. 4 (2026): Regular Issue (In Progress)
Publisher : STKIP Pesisir Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34125/jmp.v11i4.3399

Abstract

One of the measures taken is engaging professional consultants capable of providing business solutions, strategic analysis, and recommendations based on their expertise and experience. As business challenges grow more complex and technology advances, the demand for consulting services continues to rise, leading to increasingly intense competition among consulting firms. This study aims to examine the influence of service quality, corporate image, and marketing strategies on the decision to use consulting services, with selling price as a moderating variable, at PT Pelita Sarana Indotama. The study employed a quantitative approach involving 100 respondents selected through purposive sampling. Data analysis was conducted using PLS-SEM with SmartPLS 4.1.1.8. The results show that service quality and marketing strategy have a significant positive effect on the decision to use consulting services, while corporate image has no significant effect. Selling price also fails to moderate the relationship between these three variables and the decision to use consulting services. These findings are expected to provide input for the company in improving service quality and marketing strategy.
MODERASI HARGA SAHAM BERBASIS PROFITABILITAS DAN LIKUIDITAS DENGAN KURS SEBAGAI VARIABEL MODERASI(Studi Kasus Perusahaan Keuangan Subsektor Perbankan yang Terdaftar di Bursa Efek Indonesia Periode 2015-2024) Kayla Ainiyah; Jhonni Sinaga; Supriyanto Supriyanto
Jurnal Manajemen Pendidikan Vol. 11 No. 4 (2026): Regular Issue (In Progress)
Publisher : STKIP Pesisir Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34125/jmp.v11i4.3432

Abstract

Objective: This study aims to analyze the effect of profitability (return on assets) and liquidity (current ratio) on stock prices, with exchange rates as a moderating variable, for companies in the banking subsector of the financial sector listed on the Indonesia Stock Exchange (IDX) during the 2015–2024 period. The study employs an associative quantitative approach using panel data that combines cross-sectional data (10 banking companies) and time-series data (2015–2024), resulting in 100 observations. The sample was selected using purposive sampling and analyzed using panel data regression with the Random Effects Model (REM) assisted by Eviews-12. The results indicate that profitability and liquidity do not have a significant partial effect on stock prices. The exchange rate also fails to moderate the effects of profitability or liquidity on stock prices. The adjusted R-squared value of 35.63% indicates that the variables in this study can explain only a small portion of the variation in stock prices; thus, it is suspected that other, more dominant factors influence the movement of banking companies’ stock prices.
Co-Authors Adler Haymans Manurung Adler Haymans Manurung Adler Haymans Manurung Ahmad Fauzi Ari Rhamdani Bungaran Saing, Bungaran David Pangaribuan Friska Monika Sari Siagian Giovani Huiser Mangalindung Idel Eprianto Jerry Marmen Simanjuntak John EHJ FoEH Kayla Ainiyah Khan, Muhammad Asif Leonaldi Hutajulu Muthia Aminie Nera Marinda Machdar Nurhaliza Novianti Rianto, Muhammad Richo Siahaan, Matdio Sinaga, Zulkani Supriyanto Supriyanto Supriyanto Supriyanto Supriyanto Yunita, Tyna