question can it be worth much more than $100 with a 4% retur...

question
can it be worth much more than $100
with a 4% return on $4 a year div at $100
can it be worth much more
are people happy with a lower % return at prices higher than $100
would some
sort of share buy back buy cba be on the cards?
how does the shareholder benefit from here forward? hold and collect? $CommBank (CBA.AU)$