OTC Bulletin Board (OTCBB) investment & finance definition

A real-time quotation service for over-the-counter equity securities not listed or traded on a national securities exchange or on Nasdaq. In 2001 the OTCBB included over 330 market makers that provided firm quotations for over 3,600 domestic securities, foreign securities, and American Depositary Receipts. In January 1999 the SEC began requiring companies whose stocks are traded on the OTC Bulletin Board to report current financial information to the SEC. Securities delisted from the OTC Bulletin Board generally start trading through the Pink Sheets.