What are some of the differences between companies quoted by an OTC quotation service and companies listed on a stock market?
Stock markets (including NASDAQ and the registered exchanges, such as NYSE or AMEX) have specific quantitative and qualitative listing and maintenance standards, which are stringently monitored and enforced. Companies listed on a stock market have reporting obligations to the market, and an on-going regulatory relationship exists between the market and its listed companies. OTC quotation services (OTCBB, Pink Sheets) facilitate quotation of unlisted securities. As such, any regulatory relationship between an OTC quotation service and the issuers may be relatively limited or non-existent.