From Longman Business Dictionaryoversubscription allowanceˌoversubˈscription alˌlowance (also oversubscription option) noun [countable]FINANCE when additional shares are made available if there is oversubscriptionSYNGREENSHOE, OVERALLOTMENT ALLOWANCEThe company raised £825 million from the placing and this will rise to £949 million if the oversubscription allowance is exercised (=the additional shares are bought) in full.
