Analisis Intervensi Fungsi Step terhadap Harga Saham PT. Indofood CBP Sukses Makmur Tbk
Submission Date: 2023-07-18 11:20:56
Accepted Date: 2025-02-17 00:00:00
Abstract
Konflik Rusia dengan Ukraina memberikan dampak bagi perekonomian global, tidak terkecuali Indonesia. Konflik ini memberikan pengaruh bagi kinerja perdagangan antara Indonesia dengan kedua negara terutama pada komoditi gandum. Tujuan dari penelitian ini untuk mengetahui karakteristik data, mengkaji model dan efek intervensi yang terbentuk, dan mendapatkan hasil peramalan harga saham PT. Indofood CBP Sukses Makmur Tbk untuk periode berikutnya. Hasil dari penelitian ini adalah rata-rata harga saham preintervensi lebih tinggi dari pada saat intervensi pertama dan kedua. Model terbaik yang terbentuk adalah model ARIMA (1,1,0) orde b,s,r Intervensi pertama (3,0,1) dan orde b,s,r Intervensi kedua (1,1,0) yang artinya efek intervensi pertama terjadi tiga periode sejak terjadinya intervensi menyebabkan penurunan harga saham dengan pengaruh sebesar Rp 417,51. Efek intervensi kedua terjadi satu periode sejak terjadinya intervensi mengalami peningkatan harga saham dengan pengaruh sebesar Rp 501,44,-. Pada periode dua dan tiga, intervensi kedua menyebabkan penurunan harga saham. Hasil ramalan dengan data outsample memiliki nilai persentase error yang kecil sehingga model dapat digunakan untuk meramalkan haga saham dengan baik. Hasil peramalan harga saham PT. Indofood CBP Sukses Makmur Tbk tanggal 20 Juni 2022 – 7 Juli 2022 memiliki nilai yang konstan di harga Rp 8.368,-.
Keywords
Klasifikasi; Kondisi Finansial; Support Vector Machine
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