# OTC Markets

> Over-the-counter markets trade directly between parties instead of on an exchange. Learn how OTC markets work for stocks, bonds, forex and derivatives.

Source: https://learn.tradelabsai.com/market-structure/otc-markets/  
Track: Market Structure · Level: Intermediate · Updated: 2026-10-03  
Publisher: TradeLabs AI (https://tradelabsai.com). Education, not financial advice.  
Cite as: TradeLabs Learn, "OTC Markets", https://learn.tradelabsai.com/market-structure/otc-markets/

An over-the-counter (OTC) market is one where trades are arranged directly between two parties, usually through dealers, instead of on a central exchange with a public order book. Some of the largest markets in the world are OTC, including most of the currency, bond and swap markets. At the other end of the scale, many small and speculative stocks also trade OTC because they do not meet exchange listing standards.

## How OTC markets work

In an OTC market, dealers quote prices at which they are willing to buy and sell. Clients trade with those dealers by phone, chat or electronic platforms. There may be no single place where all prices are visible, and trades can be customised in size and terms.

| | Exchange | OTC market |
|---|---|---|
| Venue | Central marketplace | Network of dealers and platforms |
| Price visibility | Public order book | Dealer quotes, varying transparency |
| Contracts | Standardised | Can be customised |
| Counterparty risk | Usually a central clearing house | Each party, unless centrally cleared |
| Examples | Listed stocks, futures | Forex, most bonds, swaps, small stocks |

## Major OTC markets

- **Foreign exchange:** the largest market in the world trades mainly OTC between banks, dealers and electronic platforms. See [What Is Forex?](https://learn.tradelabsai.com/markets/what-is-forex/).
- **Bonds:** most corporate and municipal bonds, and a large part of government bond trading, happen OTC. See [Bond Trading](https://learn.tradelabsai.com/markets/bond-trading/).
- **Derivatives:** interest rate swaps, many currency forwards and other custom contracts. See [Swaps Explained](https://learn.tradelabsai.com/bonds-credit/swaps-explained/).
- **OTC stocks:** shares of companies not listed on a major exchange.

## OTC stocks

In the United States, OTC Markets Group operates tiers for stocks that trade off exchange:

| Tier | Typical companies |
|---|---|
| OTCQX | Established companies meeting higher reporting standards, including many foreign firms |
| OTCQB | Early stage and developing companies with current reporting |
| Pink | A wide range, from legitimate firms to shell companies with limited information |

Many OTC stocks are very low priced, thinly traded and have limited disclosure. They are a frequent target of pump and dump schemes. See [Identifying Trading Scams](https://learn.tradelabsai.com/start-here/identifying-trading-scams/).

**Watch out: Liquidity and information risk**
A small OTC stock might trade only a few thousand dollars a day with a spread of 10% or more. Getting in is easy; getting out at a fair price can be very hard. Combined with limited financial reporting, this makes many OTC stocks among the riskiest securities available.

## Counterparty risk and reforms

Because OTC trades are agreements between two parties, each side depends on the other to pay. During the 2008 financial crisis, uncertainty about who owed what in OTC derivatives markets spread panic. Since then, reforms in the US (the Dodd-Frank Act) and elsewhere require many standard OTC derivatives to be cleared through central counterparties, traded on regulated platforms and reported to trade repositories. See [Market, Credit and Counterparty Risk](https://learn.tradelabsai.com/portfolio/counterparty-risk/) and [Clearing Houses and Central Counterparties](https://learn.tradelabsai.com/market-structure/clearing-houses/).

## Why OTC markets exist

- **Customisation:** companies can hedge exact amounts and dates rather than standard contract sizes.
- **Large trades:** institutions can negotiate big blocks privately.
- **Instruments that rarely trade:** thousands of individual bonds trade too infrequently for a central order book.
- **Access for smaller companies** that cannot meet exchange listing requirements.

## How to approach OTC instruments

If you trade anything OTC, check three things first: who your counterparty is and how strong it is, how you would exit and at what likely cost, and what information is published about the asset. For forex, that means a well regulated broker. For OTC stocks, it means reading the company's filings, checking which tier it trades on and looking at real daily volume before buying.

## Frequently asked questions

### What does over the counter mean in trading?

It means trading directly between parties or through dealers, rather than on a centralised exchange.

### Are OTC stocks risky?

Often yes. Many have low liquidity, wide spreads and limited public information, and some are targets of manipulation.

### Is forex traded OTC?

Yes. Spot forex is traded over the counter through banks, dealers and electronic platforms; currency futures trade on exchanges.

## Sources

- U.S. Securities and Exchange Commission, [Over the counter market](https://www.investor.gov/introduction-investing/investing-basics/glossary/over-counter-market)
- Wikipedia, [Over the counter (finance)](https://en.wikipedia.org/wiki/Over-the-counter_%28finance%29)

## Continue learning

- Next lesson: [Clearing Houses and Central Counterparties](https://learn.tradelabsai.com/market-structure/clearing-houses/)
- Previous lesson: [Dark Pools](https://learn.tradelabsai.com/market-structure/dark-pools/)
- Related: [Dark Pools](https://learn.tradelabsai.com/market-structure/dark-pools/): Dark pools are trading venues that do not display orders before trades happen. Learn why they exist, how they work, the concerns about them and how they affect you.
- Related: [Exchanges](https://learn.tradelabsai.com/market-structure/exchanges/): Exchanges are regulated marketplaces where buyers and sellers trade. Learn what exchanges do, the major ones worldwide, how they make money and listing rules.
- Related: [What Is Forex?](https://learn.tradelabsai.com/markets/what-is-forex/): Forex is the global market for exchanging currencies. Learn how currency pairs are quoted, who trades them, what moves exchange rates and the risks for traders.
- Related: [Market, Credit and Counterparty Risk](https://learn.tradelabsai.com/portfolio/counterparty-risk/): Learn the difference between market risk, credit risk and counterparty risk, how each is measured and managed, and real cases from Lehman Brothers to FTX.
- Related: [Swaps Explained](https://learn.tradelabsai.com/bonds-credit/swaps-explained/): A swap exchanges one stream of cash flows for another. Learn the main types, from interest rate and currency swaps to credit, total return and commodity swaps.
- Related: [Clearing Houses and Central Counterparties](https://learn.tradelabsai.com/market-structure/clearing-houses/): Clearing houses stand between buyers and sellers so every trade is honoured. Learn how central counterparties work, margin, default funds and why they matter.