A portfolio is a collection of investments held by an institution or individual..
The theory of portfolio is a combination of various asset either financial or rill..Selection of portfolios that maximizes expected return without forgetting the great risk..
The purpose of the portfolios is to minimize the risk with diversification..
Bull market is the market conditions or prices are increasing steadily..Here it’s time to sell..
The opposite of bull market is the bear market which means the frequency of trading is on the decline..Here it’s time to buy..
The portfolio of single period
Rp = w1R1 + w2R2 + …. wgRg
Rp = Portfolio return
Rg = Rate of return asset g
Wg = Part of the overall market value
g = Amount of the portfolio asset
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