Prediksi Indeks Harga Saham Menggunakan Model Dinamik Hukum Pendingin Newton
Submission Date: 2021-08-26 14:50:58
Accepted Date: 2022-07-12 00:00:00
Abstract
Investasi merupakan upaya penanaman modal untuk mendapatkan return yang sebesar-besarnya di masa depan. Investasi saham merupakan salah satu bentuk investasi yang dapat memberikan return yang tinggi. Namun, semakin tinggi return yang didapatkan maka, semakin besar pula kemungkinan risiko yang dihadapi. Salah satu cara untuk meminimalisir kerugian dalam investasi saham adalah dengan memprediksi indeks harga saham dengan menganalisis data indeks harga saham sebelumnya. Fenomena pengembalian rata-rata (mean reversion) yang terjadi pada indeks harga saham menyerupai perpindahan panas yang dicirikan pada hukum pendingin Newton. Pada tugas akhir ini dibahas mengenai prediksi Indeks Harga Saham Gabungan (IHSG) dengan menggunakan model dinamis yang didapat dari modifikasi hukum pendingin Newton. Terdapat tiga model dinamis hasil modifikasi hukum pendingin Newton yang akan digunakan untuk memprediksi indeks harga saham, yaitu Price Reversion Model, Price Reversion-Quasi Logistic Model dan Velocity Reversion Model. Ketiga model tersebut diterapkan pada Indeks Harga Saham Gabungan (IHSG) untuk melihat kemampuan prediksi dari masing-masing model. Berdasarkan hasil validasi model didapatkan model terbaik untuk memprediksi IHSG adalah Price Reversion Model dengan MAPE sebesar 8.4159%. Kemudian, Price Reversion Model digunakan untuk memprediksi IHSG untuk bulan April 2021 sampai Juli 2021, didapat bahwa IHSG akan mengalami tren turun dalam selang waktu tersebut.
Keywords
Prediksi;IHSG;Hukum Pedningin;Newton;Model Dinamis;MAPE
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