How to start OTC trading

What is OTC trading?

OTC trading, or over-the-counter trading, refers to financial transactions that take place directly between two parties rather than through a centralised exchange such as the London Stock Exchange or New York Stock Exchange.

Instead of matching buyers and sellers through a public order book, OTC markets typically operate through dealer networks, brokers or electronic trading systems. This structure allows participants to negotiate trades directly, which can provide more flexibility than traditional exchange trading (and often better pricing).

Many of the world’s largest financial markets operate OTC, including forex, bonds and derivatives. In fact, the global foreign exchange market is one of the best-known examples of an OTC market because currencies are traded electronically between banks, institutions and traders rather than on a central exchange.

While OTC markets can offer flexibility and access to a wider range of instruments, they also carry unique risks around transparency, liquidity and volatility that traders need to understand before getting started.

How OTC markets work

In an exchange-traded market, buyers and sellers place orders through a central exchange that publicly displays prices and trade volumes.

OTC markets work differently. Prices are quoted directly by dealers or providers, and trades are agreed privately between counterparties. Because of this, pricing and liquidity can vary more significantly between providers and instruments.

This flexibility allows OTC markets to support a broader range of assets and customised contracts, including:

• forex pairs
• CFDs
• bonds
• derivatives
• some smaller company shares

However, this structure also means OTC markets may offer less transparency than exchange-traded markets, particularly in less liquid instruments. 

OTC trading vs exchange trading

Although both involve buying and selling financial instruments, OTC and exchange-traded markets operate very differently.

One of the biggest differences is standardisation. Exchange-traded products typically follow strict contract specifications, whereas OTC products can be more customised depending on the provider and market.

This flexibility is one reason OTC trading is widely used in derivatives and forex markets (but also why it can make sense to avoid it until you are confident).

Which markets trade OTC?

Many traders are already participating in OTC markets without necessarily realising it.

1. Forex
2. CFDs and spread betting
3. Bonds and derivatives
4. OTC shares

1. Forex

The forex market is entirely decentralised and operates OTC through a global network of banks and financial institutions. Because there is no central exchange, forex trading takes place 24 hours a day during the week.

This high liquidity is one reason forex is often considered a more accessible OTC market for beginners.

2. CFDs and spread betting

CFD trading and spread betting are also OTC products. When trading CFDs, you speculate on price movements without owning the underlying asset directly.

Because these are leveraged products, both profits and losses are calculated on the full position size rather than the margin deposited upfront, which drastically increases the risk profile.

3. Bonds and derivatives

Many bond markets operate OTC because institutional participants often require more customised trade sizes and terms than standard exchanges provide.

Derivatives such as swaps and forwards are also commonly traded OTC.

4. OTC shares

Some smaller or international companies trade OTC rather than on major exchanges. These markets can sometimes offer access to companies unavailable elsewhere, but they may also carry significantly higher risk due to lower reporting requirements and reduced liquidity. For example, in the case of FTSE AIM shares made available in the USA, the OTC price is often different to that listed on the exchange.

Benefits of OTC trading

One reason OTC markets remain so widely used is the flexibility they offer compared to standardised exchanges.

Access to more markets and instruments

OTC trading can provide access to markets or products that may not be available on traditional exchanges, including certain derivatives and international securities.

Flexible trading structures

Because OTC transactions are negotiated directly, trade sizes and contract terms can sometimes be more flexible than exchange-traded alternatives.

Extended market access

Some OTC markets, particularly forex, operate nearly 24 hours a day during the week, allowing traders to react to economic news and global events in real time.

Potential liquidity in major OTC markets

Large OTC markets such as forex can offer extremely high liquidity and tight spreads under normal market conditions.

Risks of OTC trading

While OTC trading can offer flexibility, it also introduces additional risks that traders need to understand clearly.

Lower transparency

Unlike exchange-traded markets, OTC pricing and volumes are not always fully visible to all market participants. This can make fair value more difficult to assess.

Liquidity risk

Some OTC instruments can be less liquid, meaning prices may move sharply or trades may become harder to execute during volatile conditions. Wider spreads can also increase trading costs.

Counterparty risk

Because OTC trades occur directly between parties, traders are exposed to the risk that the counterparty may fail to meet its obligations. This is less of a concern with heavily regulated providers, but remains an important feature of OTC markets.

Increased volatility

Lower liquidity and less transparency can contribute to larger price swings, particularly in smaller OTC securities or during periods of market stress.

Leverage risk

Many OTC products, including CFDs and spread betting, involve leverage. While leverage can amplify gains, it can also magnify losses rapidly. Appropriate risk management strategies such as stop loss orders, hedging and portfolio diversification are recommended when trading with leverage.

How to start OTC trading

If you’re considering OTC trading, it helps to approach the market gradually and with a strong focus on risk management.

Step 1: Understand the market structure

Before placing trades, it’s important to understand how OTC markets differ from exchanges, particularly around pricing, liquidity and transparency.

Step 2: Choose a regulated provider

In the UK, traders should look for providers regulated by the Financial Conduct Authority (FCA). Regulation does not eliminate risk, but it does provide additional oversight and consumer protections.

Step 3: Practise using a demo account

Many beginners use demo accounts to familiarise themselves with OTC markets and trading platforms before risking real capital.

You can try an IG demo account to practise in simulated market conditions.

Step 4: Start with more liquid OTC markets

Some beginners begin with forex because of its relatively high liquidity and wider availability of educational resources. It’s also better to start with a small position at first.

Step 5: Focus on risk management

Managing trade size, using stop-loss orders and avoiding excessive leverage can help reduce risk when learning.

Risk management in OTC markets

Risk management is particularly important in OTC trading because of the potential for wider spreads, volatility and leverage.

Many traders use the following measures to help control risk exposure:

• stop-loss orders
• position sizing limits
• diversification
• reduced leverage

No strategy removes risk entirely, and losses can still occur even when using risk management tool.

OTC Trading FAQs