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UPT Publikasi Ilmiah, Universitas Islam Bandung. Jl. Tamansari No. 20, Bandung 40116, Indonesia, Tlp +62 22 420 3368, +62 22 426 3895 ext. 6891
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Bandung Conference Series: Statistics
Published by Universitas Islam Bandung
ISSN : -     EISSN : 2828206X     DOI : https://doi.org/10.29313/bcss.v2i2
Core Subject : Science, Education,
Decision Sciences, Operations Research & Management Education Mathematics
Bandung Conference Series: Statistics (BCSS) menerbitkan artikel penelitian akademik tentang kajian teoritis dan terapan serta berfokus pada Statistika dengan ruang lingkup sebagai berikut: Alternating Least Square, Analisis Konjoin, Autoregressive, Auxiliary Variabel, Baby Birth, Block Maxima, Churn Distribusi Skellam, Cox Regression, Data spasial, DBD Ordinal Logistic Regression, Diagram kendali, Discrete Choice Experiment Method, Discrete Time Logistic, empirical likelihood, Fisher Scoring, Generalized Structured Component Analysis, Geographically Weighted Regression, GEV, GJR GARCH, Infant Mortality Preferensi, Insurance Claim, Kaplan-Meier, Kernel Bi-Square, Gaussian, Logistic Regression, Maternal Mortality, Mixed Geographically Weighted Regression Model GSTAR, MLE, Model ARIMAX, MSE. Multiple linear regression analysis, Nadaraya Watson, Newton Raphson Method, Nonparametrik Spline Confidence Interval, Optimasi Multi-Objek, orde Spasial, Outlier, Pareto Optimal, Partial Proportional Odds Model, Pemodelan Indeks Pembangunan Manusia. Penduga Rasio dan Produk Tipe Eksponensial, Peramalan, Poisson Bivariate Regression, Poisson Regression, Rata-rata Populasi berhingga, Regresi, Return Period Exogenous Variable, RMSE, Structural Equation Modeling, Survival Analysis, Threshold, Vibrasi Bearing, zero-inflated. Prosiding ini diterbitkan oleh UPT Publikasi Ilmiah Unisba. Artikel yang dikirimkan ke prosiding ini akan diproses secara online dan menggunakan double blind review minimal oleh dua orang mitra bebestari.
Arjuna Subject : Matematika - Statistik dan Probabilitas
Articles 1 Documents
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Perbandingan Metode Double Exponential Smoothing Holt, Fuzzy Time Series Lee, Dan Fuzzy Time Series Stevenson-Porter Pada Peramalan Harga Penutupan Saham BBRI Nur Indah Lutfira; Teti Sofia Yanti
Bandung Conference Series: Statistics 337-346
Publisher : UNISBA Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/bcss.v6i2.26198

Abstract

Abstract. Forecasting is an approach used to estimate future conditions based on historical data patterns. In investment, stock price forecasting provides important information to support decision-making because stock price movements are dynamic and fluctuating. This study aims to compare the performance of the Double Exponential Smoothing Holt, Fuzzy Time Series Lee and, Fuzzy Time Series Stevenson-Porter methods in forecasting BBRI stock closing prices and determining the method with the best accuracy. The research uses quantitative methods with secondary data in the form of daily BBRI stock closing prices from January 2, 2026, to June 30, 2026, obtained from Yahoo Finance. The data processing involves applying three forecasting methods and evaluating their accuracy using the Mean Absolute Percentage Error (MAPE). The results show that the MAPE values of the Double Exponential Smoothing Holt, Fuzzy Time Series Lee, and Fuzzy Time Series Stevenson-Porter methods are 1.65%, 1.78%, and 0.49%, respectively. The Fuzzy Time Series Stevenson-Porter method achieves the best performance with the smallest MAPE value. The forecasting result for the 117th period using this method is Rp2,713.07 per share. Abstrak. Peramalan merupakan pendekatan untuk memperkirakan kondisi masa mendatang berdasarkan pola data historis. Dalam bidang investasi, peramalan harga saham menjadi informasi penting karena pergerakan harga saham bersifat dinamis dan fluktuatif. Penelitian ini bertujuan untuk membandingkan kinerja metode Double Exponential Smoothing Holt, Fuzzy Time Series Lee, dan Fuzzy Time Series Stevenson-Porter dalam meramalkan harga penutupan saham BBRI serta menentukan metode dengan tingkat akurasi terbaik. Data yang digunakan merupakan data sekunder berupa harga penutupan harian saham BBRI periode 2 Januari 2026 hingga 30 Juni 2026 yang diperoleh dari Yahoo Finance. Metode peramalan diterapkan pada data saham yang memiliki pola fluktuatif dengan kecenderungan tren menurun, kemudian tingkat akurasi dievaluasi menggunakan Mean Absolute Percentage Error (MAPE). Hasil penelitian menunjukkan nilai MAPE metode Double Exponential Smoothing Holt sebesar 1,65%, Fuzzy Time Series Lee sebesar 1,78%, dan Fuzzy Time Series Stevenson-Porter sebesar 0,49%. Metode Fuzzy Time Series Stevenson-Porter menghasilkan akurasi terbaik dengan nilai MAPE terkecil dan menghasilkan peramalan harga penutupan saham BBRI periode ke-117 sebesar Rp2.713,07 per lembar saham.

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