From Longman Business Dictionaryoverallotmento‧ver‧al‧lot‧ment /ˈəʊvərəˌlɒtməntˈoʊvərəˌlɑːt-/ noun [countable, uncountable] FINANCE when a financial institution sells all the available shares in a company’s SHARE ISSUE or SECONDARY OFFERING and then sells more, or the number of shares sold in this waySYNGREENSHOEThree companies are underwriting the offering, which includes an overallotment of 2.7 million shares.It also sold its 15% overallotment allowance.
