The interbank market is the decentralized network where large financial institutions—banks, hedge funds, and corporations—trade currencies directly with each other. It is the world's largest financial market by volume and sets the benchmark exchange rates for all forex trading.
How the Interbank Market Works
Banks connect through electronic platforms such as EBS (Electronic Broking Services) and Reuters' Matching to trade currencies 24 hours a day, five days a week. Trading volumes are enormous; individual transactions often involve millions of dollars. The supply and demand for currencies on this market drive the exchange rates that retail brokers quote to their clients.
Key Characteristics
- Decentralized: No central exchange; trades occur over electronic networks globally.
- 24/5 operation: Trading follows the sun across Asia, Europe, and North America.
- Participants: Major banks, hedge funds, corporations, and high-net-worth individuals.
- Minimum size: Transactions typically involve millions of units; retail traders do not access this market directly.
Interbank vs. Retail Forex
Retail forex brokers bridge the gap between the interbank market and individual traders. While you cannot trade on the interbank market yourself, your broker sources prices from it. This means interbank rates are tighter (smaller spreads) than retail rates. However, the interbank market is less regulated than retail forex, which has trade-offs in transparency and oversight.
Why It Matters for Traders
Understanding the interbank market helps you see where forex prices originate and why spreads differ across brokers. The interbank market's liquidity and size ensure that large institutional trades move markets, while retail traders benefit from the stable, liquid pricing that flows down to their trading platforms.







