Expected return on security = Income return+nominal earning return + repricing return
= DIV1 / Po - change in S + i + g + change in PE
Look for ques. if repurchase yield is given instead of change in no of secuirites i would simply change the above formula with + change in S & would look at the sign of repurchase yield
Delta S in the formula - is Change in # of outstanding Shares.
When repurchase yield is provided and is positive -> it means that due to some action by the company the yield increased. That could only happen if the # of Shares DECREASED because the company BOUGHT BACK its shares. So DeltaS is NEGATIVE. So -(DeltaS) will be positive.
When Repurchase yield is NEGATIVE -> it means company ISSUED SHARES so the change in number of shares is POSITIVE. So -DeltaS is NEGATIVE.