Behind the Curtain: How Big Banks Dominate the Forex Market

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dissii • January 18th 2025

4 min read
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The foreign exchange market, or forex, is the world's largest and most liquid financial market, with daily trading volumes exceeding $7 trillion. While individual traders and retail investors actively participate, the real power players in this arena are commercial banks like JPMorgan Chase, HSBC, and Deutsche Bank. These institutions dominate forex trading through a network known as the interbank market—a realm of high-stakes trading that operates behind closed doors. Let’s pull back the curtain and explore how these giants trade forex and influence global currency movements.

What Is the Interbank Market?

The interbank market is an exclusive network where major financial institutions trade currencies directly with one another. Unlike retail forex platforms, this market is decentralized, operating through a web of electronic communication networks (ECNs) and direct phone lines. It’s in this domain that the exchange rates you see on your trading platform are born.

Big banks leverage the interbank market to perform two primary functions:

  1. Facilitate client transactions

  2. Engage in proprietary trading

Client Transactions: The Bread and Butter

Commercial banks primarily trade forex on behalf of their corporate clients. Multinational companies rely on these banks to convert currencies for cross-border transactions, hedge against currency risk, and manage liquidity. For instance, an international business might need to convert euros to U.S. dollars to pay suppliers in the U.S. Banks execute these transactions at interbank rates, often adding a small margin as profit.

Example:
HSBC might secure euros from another bank like BNP Paribas, convert them into dollars, and then transfer the funds to the client—all in a matter of seconds. These transactions are vital to maintaining the flow of global trade and finance.

Proprietary Trading: The Profit Engine

Beyond client services, banks also trade currencies for their own accounts, aiming to profit from fluctuations in exchange rates. This activity is known as proprietary trading. Using advanced algorithms and massive data sets, banks predict market movements and place trades accordingly.

JPMorgan’s Trading Desk:
JPMorgan Chase, one of the largest forex players globally, uses its highly sophisticated trading desks to speculate on currency pairs. With access to insider market data, their traders often have a competitive edge, identifying trends before they become apparent to retail traders.

How Do Banks Make Money in Forex?

  1. Spread Advantage:
    Banks enjoy the narrowest bid-ask spreads due to their high trading volumes. A slight movement in price can yield significant profits when billions are traded.

  2. Access to Insider Liquidity:
    Major banks operate as liquidity providers, meaning they often set the market prices that smaller players trade against. This dominant position enables them to control certain market dynamics.

  3. Advanced Technology:
    HSBC and Deutsche Bank use cutting-edge algorithms to analyze patterns, execute trades in milliseconds, and capitalize on arbitrage opportunities across currency markets.

The Role of Risk Management

Commercial banks are not immune to risk in the forex market. To mitigate exposure, they employ teams of risk managers who assess potential losses from fluctuating currency rates. For example, during political instability or major economic events, banks may reduce trading positions or hedge their portfolios using derivatives.

How Does This Affect Retail Traders?

As retail traders, we operate at the far end of the forex food chain. The prices we see on platforms like MetaTrader 4 or cTrader are influenced by the actions of these banking giants. When JPMorgan places a massive buy order for euros, it can trigger a price surge that ripples through the market.

However, this also means that understanding how banks trade can provide valuable insights for retail traders. By following economic reports, interest rate decisions, and geopolitical events, you can align your strategies with the macro trends driven by institutional players.


The world of interbank forex trading is a high-stakes battlefield dominated by commercial banks like JPMorgan and HSBC. These institutions influence currency rates, provide market liquidity, and profit from both client transactions and proprietary trading. For retail traders, understanding their strategies and behaviors offers a unique edge in navigating the complex forex market.

Next time you place a trade, remember: the ripples in the forex market often originate from the colossal waves made by these banking giants.

Want to learn how to think like the pros? Join the NivanFX community today and start trading with insights inspired by the biggest players in the game.

#NivanFX #Banks #Trade #forex


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