Interdealer Quotation System The exchange system comprised of the Nasdaq (National Association of Securities Dealers Automatic Quotation), Nasdaq small-cap market and the Over-the-Counter Bulletin Board (OTCBB) exchange platforms. Investopedia Says: The Interdealer Quotation System gives investors access to literally thousands of publicly traded companies, from mega-cap names such as Microsoft right down to the smallest of the small-cap stocks. Related Terms: Listed Security Market Capitalization NASD Nasdaq OTCBB Over the Counter |