reinvestment
noun[U]
STOCK MARKET,FINANCE(alsore-investment)uk/ˌriːɪnˈvestmənt/ustheactivityof puttingmoneythat youreceivefrom aninvestmentback into thatinvestment, or into anotherinvestment:
Thefigurefortotalreturnisbasedon reinvestment of alldividends.
adividendreinvestmentplan
areinvestmentoption/rate