ANALISIS PORTOFOLIO OPTIMAL MODEL INDEKS TUNGGAL PADA PERUSAHAAN PERBANKAN

Abstract

In carrying out investment activities, an investor is confronted with two things, i.e. the profit level and the risk
level which may arise as a result of the uncertainty. This research is aimed to find out the combination and the
proportion of optimum portfolio on banking stocks which are listed in Indonesia Stock Exchange. The samples
are five banking companies which are listed in Indonesia Stock Exchange which has been carried out by using
purposive sampling technique. The data has been done by using the Composite Stock Price Index (CSPI), the
distribution of dividends per year, the price of individual stocks per year, and the interest rate of Bank Indonesia
Certificates (SBI) in 2010-2015. The calculation has been done by comparing the profit level and the risk level of
five sample stocks and it has obtained 2 stocks which are included in the optimum portfolio candidate and become
1 combined portfolio, i.e. PT Bank Central Asia Tbk (BBCA) and PT Bank Rakyat Indonesia (BBRI). The result
of the research shows that the rate of gain of 50%: 50% proportion is 0.2073 and the risk level is 0.07698. In the
rate of gain 60%: 40% proportion is 0.1955 and the risk level is 0.10696. In the rate of gain 70%: 30%
proportion is 0.1837 and the risk level is 0.14199. The result of the three proportions show that the rate of profit
is greater than the risk level premises, so as to provide a good profit to the investors.

Keywords: stocks, single index model, investment, optimum portfolio