If your objective is to reduce overall portfolio risk as much as possible, which stocks should you put into your portfolio?
Multiple Choice
Stocks that have the highest expected returns
Stocks with returns that are positively correlated
Stocks with returns that are not correlated
Stocks with returns that have the highest specific risk
The correct answer is Stocks with returns that are not correlated
Diversification benefit - We should not invest our wealth in a
single stock. We should invest in a portfolio. Whenever we combine
two or more assets in a portfolio the risk gets reduced. The extent
of risk reduction depends on correlation.
Maximum benefit from diversification occurs when the correlation
coefficient for pairs of stocks is minus one.
Correlation refers to the strength of liner relationship between
two variables. It lies between -1 and +1. Lower the correlation,
greater the benefit of diversification in the form of risk
reduction. Therefore to reduce the risk of overall portfolio we
should add stocks with returns that are not correlated.
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