If an investor decides on the all Microsoft portfolio (in the text example), does it make sense to use the Sharpe ratio to decide whether to invest $2,000 or $4,000 ...

No The Sharpe ratio is useful for comparing ...

If an investor decides on the all-Microsoft portfolio (in the text example), does it make sense to

Question:

If an investor decides on the all-Microsoft (in the text example), does it make sense to use the Sharpe ratio to decide whether to invest $2,000 or $4,000?
Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...