partly-paid shares
noun[plural]
STOCK MARKETukus(alsopartly-paid stock);(partly paid-up share capital);(contributing shares)sharesthat have beenbought, but for which thecompanyhasallowedshareholderstopayonlypartof thetotalvalue:
Acompanycancalloninvestorstopaytheremainingvalueof partly-paidsharesat anypointin thefuture.