Expected return is a tool used to determine whether or not an investment has a positive or negative average net outcome. The most highest expected return is from Yong Tai Berhad.
Standard deviation is a quantity expressing by how much the members of a group differ from the mean value for the group. The lowest standard deviation among this three company is from Hiap Teck Venture. Coefficient of variation represents the ratio of the standard deviation to the mean, and it is a useful statistic for comparing the degree of variation from one data series to another. Borneo Oil Berhad does have high expected return but low in risk. For Yong Tai Berhad, its does have highest return and high risk. Hiap Teck does have lowest return at the lowest risk.
Portfolio.
A measure of the degree to which returns on two risky assets move in tandem. A positive covariance means that asset returns move together. A negative covariance means returns move inversely. Based on the bar chart, Yong Tai Berhad and Hiap Teck Venture do have positive covariance.
A statistical measure of how two securities move in relation to each other. Based on the table above, all correlation in portfolio of each company are perfect positive correlation its because all value are in range -1 to +1. A measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole. Beta is used in the capital asset pricing model (CAPM). Yong Tai Venture does have the most high risk.
Recommendation.
We do suggest to invest in Yong Tai Venture. Eventhough Borneo Oil Berhad gives high return but Yong Tai gives high return at a lowest risk. Its slightly different for Borneo Oil Berhad it does have higher return at very high risk too. For Hiap Teck Berhad, it will give small return at high risk.
Conclusion.
As an investor, we need to know the risk and return of the company that we will like to invest to avoid losses. Furthermore, we