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Consider a market as described in the table below. Asset Sharperatio Alpha/IdiosyncraticVolatility X 0.60 0.12 Y 0.40 -0.12 Allothers 0.79 0.00 M 0.80 0.00 Marketreferstothevalue-weightedaggregateportfolioofallriskyassets.Allothersrefertothevalue-weightedportfolioofallotherriskyassetsinthemarketexceptforassetsXandY.WhichstatementbelowistrueregardingthehighestSharperatiothatarisk-averseinvestorwiththetypicalmean-variancepreferenceofinvestmentscouldobtain?Pleaseroundyourcalculationtothenearest2nddecimal.

Consider a market as described in the table below. 

Asset

Sharpe ratio

Alpha/Idiosyncratic Volatility

X

0.60

0.12

Y

0.40

-0.12

All others

0.79

0.00

M

0.80

0.00

"Market" refers to the value-weighted aggregate portfolio of all risky assets. "All others" refer to the value-weighted portfolio of all other risky assets in the market except for assets X and Y. Which statement below is true regarding the highest Sharpe ratio that a risk-averse investor with the typical mean-variance preference of investments could obtain? Please round your calculation to the nearest 2nd decimal.

 


a.
The highest obtainable Sharpe ratio is 0.82, through holding a portfolio of M, X and Y

b.
The highest obtainable Sharpe ratio is 1.04, through holding a portfolio of M, X and Y

c.
The highest obtainable Sharpe ratio is 0.81, through holding a portfolio of M and X

d.
The highest obtainable Sharpe ratio is 0.92, through holding a portfolio of M and X

e.
The highest obtainable Sharpe ratio is 0.8, through holding M

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