Indication of Interest - IOI
An underwriting expression showing a conditional, non-binding interest in buying a security that is currently in registration (awaiting effectiveness by the SEC). The investor's broker is required to provide the investor with a preliminary prospectus.
Investopedia Commentary
The IOI is non-binding because it is illegal to sell a security while still in the registration process.
Related Links
IPO Basics Tutorial
See also: IPO, Prospectus, Underwriting
Also spelled: IOI
indication of interest