A document circulated to potential buyers of a specific security that may be offered for sale in the future. The document, often prepared by the investment bank representing the company, details information that is designed to entice potential buyers to buy the security.

The teaser's purpose is to create a demand for the security in question, and it may be followed by the prospectus, the final prospectus and the initial public offering. The teaser usually contains few details and may only highlight items that may influence a potential buyer. For example, information on revenues may be available, but cost information may not be.