OTC Market
The OTC (over-the-counter) market is a decentralized network where securities not listed on formal exchanges like NYSE or NASDAQ are traded directly between dealers and investors via electronic systems.
The over-the-counter market is one of the oldest forms of securities trading in the United States and remains a vast and important segment of the capital markets today. Unlike exchange trading — where buyers and sellers meet on a centralized platform with standardized rules, transparent prices, and a clearing process — OTC trading takes place in a distributed network of broker-dealers who quote prices and negotiate transactions directly with each other and with clients. The OTC market encompasses a wide range of securities: stocks of smaller or foreign companies, corporate bonds, government securities, municipal bonds, ADRs, and many derivatives.
In the U.S. equity OTC market, OTC Markets Group (formerly known as the Pink Sheets) operates the primary electronic marketplace. It operates three tiers: OTCQX (the highest tier, for established companies meeting financial standards and undergoing SEC reporting), OTCQB (the 'Venture Market' for smaller development-stage U.S. and international companies), and OTC Pink (the lowest tier, with minimal financial standards, where many shell companies and foreign issuers with no U.S. reporting obligations trade).
Many globally significant securities trade OTC. The U.S. Treasury market — one of the largest and most liquid markets in the world — is entirely OTC, with dealers quoting prices to institutional buyers rather than matching orders on an exchange. Most corporate bond trading is also OTC. In the equity space, thousands of foreign companies that don't want to undergo full SEC registration trade as Level I ADRs on OTC markets, including well-known names like Roche, LVMH, and Heineken.
The regulatory framework for OTC equity trading has evolved significantly. FINRA oversees broker-dealers operating in the OTC market, requiring them to register, maintain capital standards, and report transactions to FINRA's Trade Reporting and Compliance Engine (TRACE) for bonds and the OTC Reporting Facility (ORF) for equities. The SEC also monitors OTC markets for manipulation and fraud, which are more common in less-liquid OTC stocks due to lower trading volumes, less analyst coverage, and reduced disclosure requirements.
Investors face higher risks in the OTC market. Bid-ask spreads tend to be wider, reflecting lower liquidity and higher dealer risk. Companies on lower OTC tiers may provide minimal or no financial disclosure, making fundamental analysis difficult. OTC stocks are also more susceptible to 'pump-and-dump' schemes in which promoters artificially inflate prices before selling their shares. Brokerage firms often impose additional restrictions — such as limiting purchases to experienced traders — on OTC Pink stocks precisely because of these elevated risks.