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All Journal IMAGE Journal of Business Management Education (JBME) Jurnal Manajemen & Keuangan Substansi: Sumber Artikel Akuntansi Auditing dan Keuangan Vokasi Jurnal ASET (Akuntansi Riset) IKRA-ITH EKONOMIKA EQIEN - JURNAL EKONOMI DAN BISNIS Shirkah: Journal of Economics and Business Jurnal Pendidikan Akuntansi dan Keuangan JURNAL MANAJEMEN JSMA (Jurnal Sains Manajemen dan Akuntansi) Cakrawala Repositori Imwi Equity: Jurnal Ekonomi Finansha: Journal of Sharia Financial Management International Journal of Finance Research Jurnal Neraca Peradaban The Eastasouth Management and Business Journal of Economics, Entrepreneurship, Management Business and Accounting West Science Accounting and Finance West Science Social and Humanities Studies
Purnomo, Budi Supriatono
Universitas Pendidikan Indonesia
Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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Pengujian Model Black-Scholes dan Model Binomial pada Kontrak Opsi Saham NFLX Hanifa, Fanni Husnul; Supriatono Purnomo, Budi; Purnamasari, Imas; Shintia Dewi, Andrieta
Jurnal Manajemen dan Keuangan Vol 14 No 1 (2025): JURNAL MANAJEMEN DAN KEUANGAN
Publisher : Program Studi Manajemen Fakultas Ekonomi Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jmk.v14i1.10705

Abstract

Investasi di pasar saham menghadirkan risiko dan peluang yang tinggi, termasuk dengan instrumen derivatif seperti opsi saham. Model matematika seperti Black-Scholes dan Binomial telah dikembangkan untuk menentukan harga opsi, namun keakuratan keduanya masih menjadi perdebatan, terutama untuk berbagai periode jatuh tempo. Penelitian ini memberikan wawasan tentang keakuratan model penentuan harga opsi yang berbeda berdasarkan periode jatuh tempo. Tujuan penelitian ini adalah untuk membandingkan keakuratan Model Black-Scholes dan Model Binomial dalam menentukan nilai opsi beli saham Netflix, Inc. (NFLX) berdasarkan volatilitas harga saham dan periode jatuh tempo (1 bulan, 2 bulan, dan 3 bulan). Penelitian menggunakan data opsi saham Netflix dari Januari hingga November 2024. Nilai opsi dihitung menggunakan kedua model, dengan evaluasi berdasarkan Price Absolute Error untuk masing-masing periode jatuh tempo. Hasil penelitian menunjukkan bahwa Model Black-Scholes lebih akurat untuk periode jatuh tempo 1 bulan, sementara Model Binomial lebih akurat untuk periode 2 dan 3 bulan. Hal ini terlihat dari nilai Price Absolute Error yang lebih kecil pada masing-masing model untuk periode tersebut. Temuan ini relevan untuk investor dalam memilih model yang sesuai untuk meminimalkan risiko investasi.
TEST THE REACTION OF THE BANK SYARIAH INDONESIA STOCK MARKET (STUDY OF EVENTS PP MUHAMMADIYAH DECIDED TO WITHDRAW CUSTOMER FUNDS) Sopian, Adi; Purnomo, Budi Supriatono; Purnamasari , Imas
Finansha: Journal of Sharia Financial Management Vol. 6 No. 1 (2025): Finansha: Journal of Sharia Financial Management
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/fjsfm.v6i1.42873

Abstract

This study aims to examine the differences in abnormal returns and trading volume activity before and after the announcement of the Muhammadiyah Central Leadership (PP Muhammadiyah) memo regarding the consolidation of member funds, which are not to be concentrated in Bank Syariah Indonesia (BSI). The research method used is an event study method with a paired sample t-test to assess the significance of differences between the periods before and after the announcement. The data utilized include abnormal returns and trading volume activity for 10 days before and after the event. The results of this study indicate no significant difference in abnormal returns before and after the announcement. This suggests that the PP Muhammadiyah memo did not affect stock returns, as shareholders still trust the credibility of BSI's management, disregarding external influences. However, in terms of trading volume activity, there is a significant difference between the periods before and after the announcement. This is due to a decline in trading volume after the announcement, as shareholders observe the situation of BSI stock trading before deciding to buy or sell shares.
Co-Authors Abdullah, Sulthan Yusuf Adi Sopian Aggi Panigoro Sarifiyono Andriana, Denny Andrieta Shintia Dewi Aslam, Muhammad Ilham Chika Aprillia Ciptagustia, Annisa Dematria Pringgabayu Dewi Puspasari Dini Turipanam Alamanda Doni Dirgantara Egi Arvian Firmansyah, Egi Arvian Fanni Husnul Hanifa Fitri Novilia Frido Saritua Simatupang Heryana, Toni Hidayat, Yusuf Murtadlo Ida Farida Adi Prawira Ikin Solikin Imas Purnamasari Iskandar Iskandar Leonita Siwiyanti Ma’sum, Hadiansyah Miftakul Huda Muhamad Iqbal Naimul Firdaus Muhamad Syahwildan Muhammad Ifan Fadillah Ningtyas, Regina Aulia Nurbaeti Nurbaeti Nurmansyah, Abdul Ahmad Hafidh Rani, Asni Mustika Rena Yuliana Rina Suprina Riske Faldesiani Simatupang, Frido Saritua Siti Havidotinnisa solikin, ikin Syifa Pramudita Faddila Wenda Wahyu Christiyanto