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All Journal Sistem Pendukung Keputusan dengan Aplikasi ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat
Hadijah Hadijah
Universitas Negeri Medan
Humanities Automotive Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences Other

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Peningkatan Literasi Investasi melalui Pelatihan Analisis Matematis Pola Open Gap Up pada Investor Pemula di Kota Medan Muhammad Hafiz; Yuan Anisa; Hadijah Hadijah; Rizty Maulida Badri; Michael Sipayung
ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2025): ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat
Publisher : UPT Publikasi dan Penerbitan Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/abdiunisap.v3i2.534

Abstract

Literasi investasi merupakan kompetensi penting dalam menghadapi perkembangan pasar keuangan modern. Namun, investor pemula seringkali mengalami kesulitan memahami dinamika pergerakan harga saham, terutama dalam mengidentifikasi peluang dan risiko secara matematis. Kegiatan Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan literasi investasi melalui pelatihan analisis matematis pola Open Gap Up pada investor pemula. Metode pengabdian dilaksanakan melalui ceramah, demonstrasi, praktik langsung, dan evaluasi melalui pre-test dan post-test. Materi pelatihan mencakup konsep gap, perhitungan persentase gap, estimasi potensi keuntungan, analisis risk–reward, serta praktik menggunakan data saham riil yaitu perbankan besar di Indonesia (BBRI, BBCA, BMRI, dan BBNI)  melalui finance.yahoo.com. Jumlah peserta 50 orang. Hasil kegiatan menunjukkan bahwa peserta mengalami peningkatan pemahaman yang signifikan terhadap konsep dan analisis matematis investasi saham, serta mampu menerapkan strategi Open Gap Up secara lebih terukur yang awalnya sekitar 45,2% peserta yang faham  menjadi 68,7% peserta. Kegiatan ini diharapkan dapat menjadi kontribusi nyata bagi peningkatan literasi keuangan di masyarakat.
Prediksi Gap-Up Saham Berbasis Logistic Regression Menggunakan Indikator Teknikal Yuan Anisa; Muhammad Hafiz; Hadijah Hadijah; Abdul Gani
Sistem Pendukung Keputusan dengan Aplikasi Vol 4 No 2 (2025)
Publisher : Ali Institute or Research and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/spk.v4i2.1334

Abstract

This research aims to construct and test a predictive model for the gap-up phenomenon in stocks on the Indonesia Stock Exchange (IDX), with a case study on PT Bank Mandiri Tbk. (BMRI) stock. The research uses a quantitative approach by applying a Binary Logistic Regression model to analyze 1,213 daily historical data points from January 1, 2019, to January 1, 2024.Five technical analysis-based independent variables—vol_spike, rsi, prev_return, macd, and stochastic—were used to predict the probability of a stock gap-up occurrence.The analysis results show that the model as a whole is statistically significant (LLR p-value < 0.05), with an LLR p-value of (8.544e-11) and a Pseudo R-squared of 0.03389. Of the five variables, stochastic, macd, and prev_return were identified as significant predictors. Specifically, a high Stochastic Oscillator value has a strong positive influence on the probability of a gap-up. On the other hand, Moving Average Convergence Divergence (MACD) and Previous Return show a significant negative influence.These findings provide empirical evidence that a combination of technical indicators can be used to model and predict stock price movements at market opening. The implications of this research offer valuable insight for investors who rely on technical analysis as a basis for decision-making.
Co-Authors Abdul Gani Michael Sipayung Muhammad Hafiz Rizty Maulida Badri Yuan Anisa