Answer: 4%
Step-by-step explanation:
Abnormal returns are the excess actual returns received over the expected return.
The actual return can be calculated as;
=
![(New Stock price + dividends - Old Stock Price)/(Old stock price)](https://img.qammunity.org/2021/formulas/business/college/n2uz2rlkewhncigink3916zpxsidnnqqkm.png)
=
![(12 - 10 + 1)/(10)](https://img.qammunity.org/2021/formulas/business/college/zrl6fn6y700sthdg803dfy55r88i31zjkv.png)
= 30%
The expected return according to CAPM;
Expected return = Risk free rate + beta( market return - risk free rate)
= 16% + 1 ( 26% - 16%)
= 26%
Abnormal return = 30% - 26%
= 4%