Telah banyak penelitian dilakukan untuk mempelajari perilaku investor dalambertransaksi di bursa-bursa dunia. Penelitian dalam tesis ini mempelajari polatransaksi dan kinerja investasi instrumen Efek saham berdasarkan berbagai tipeinvestor di Bursa Efek Indonesia. Dengan menggunakan data transaksi harianyang dibagi ke dalam tipe investor lokal detail dan asing, untuk periode bulanFebruari 2012 hingga bulan April 2013, didapatkan hasil bahwa, untuk kategoritipe investor Lokal dan tipe investor Asing, tipe investor Asing mempunyaiperilaku herding lebih kuat dibandingkan tipe investor Lokal. Pada kategori tipeinvestor Lokal detail dan tipe investor Asing, tipe investor Lainnya Lokal (OTD)mempunyai perilaku herding paling kuat dibanding tipe investor yang lain, dantipe investor Individu Lokal (IDD) mempunyai perilaku herding paling lemah.Perilaku positive feedback trading dilakukan oleh tipe investor Asing (F). Tipeinvestor Asing (F) memiliki pola investasi information-based models dan tidakditemukan tipe investor dengan pola investasi behavioral-based models.

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A lot of studies have been performed to find out the presences of foreign investor,

institutional investor, and individual investor behavior when trading in the stock

exchange worldwide. This thesis studies the trading patterns and investment

performance of investor groups in Indonesia Stock Exchange. This study employs

the daily transaction data of local investor details dan foreign investor, covering

the period February 2012 up until April 2013. The results of this study

demonstrate that for investor domestic and investor foreign categories, foreign

investor had stronger herding than domestic investor. For investor domestic

details dan investor foreign categories, show that Others Domestic (OTD) investor

had the strongest herding meanwhile Individual Domestic (IDD) investor had the

weakest herding. Positive feedback trading associated with investor type Foreign

(F). Investor type Foreign (F) consistent with information-based models.