1. The process of offering securities as an attempt to raise funds. Companies may issue bonds or shares to investors as a method of financing the business. 2. A series of stocks or bonds that have been offered to the public. A bond or stock issue relates to the set of instruments that were released under one offering. Taobiz explains Issue 1. The issuance of securities can take many forms. Companies may have a new issue, where securities are released for the first time, or a seasoned issue, where an established firm offers additional shares. 2. For example, let's say a company sells a group of 10-year bonds to the public. That set of bonds will be referred to as a single issue