**Question 556** portfolio risk, portfolio return, standard deviation

An investor wants to make a portfolio of two stocks A and B with a target expected portfolio return of **12**% pa.

- Stock A has an expected return of
**10**% pa and a standard deviation of**20**% pa. - Stock B has an expected return of
**15**% pa and a standard deviation of**30**% pa.

The correlation coefficient between stock A and B's expected returns is **70**%.

What will be the annual standard deviation of the portfolio with this 12% pa target return?