Forex market structure
Family I · Instruments
Not to be confused with break of structure, market structure.
Forex market structure describes how the foreign exchange market is organised: a decentralised over-the-counter network rather than a single exchange. Trading occurs continuously across time zones through interbank venues, electronic communication networks, and retail brokers. No central clearing house or official tape exists, so prices and rules vary by venue and jurisdiction.
Participants and tiers
Forex market structure is often described in tiers. At the top, the interbank market comprises the largest commercial and central banks, which quote prices to each other and to clients. Below that, smaller banks, hedge funds, and corporations access liquidity through prime brokers or directly. Retail brokers aggregate or stream prices from these tiers to individual traders.
- Tier 1: major banks and electronic interbank venues.
- Tier 2: smaller banks, funds, and non-bank market makers.
- Tier 3: retail brokers and their clients.
Spreads, fees, and available leverage differ by tier and are not uniform across brokers or regulators.
Decentralisation and price discovery
Because there is no central exchange, no single official price exists. Instead, competing quotes from multiple venues form a composite market price. This structure allows continuous trading but also means that prices can differ slightly between venues, and that best execution practices vary by jurisdiction.
Regulatory oversight is fragmented: different countries impose different rules on leverage, reporting, and client fund segregation. Therefore, any specific requirement should be confirmed with the relevant regulator or broker documentation.
Worked example: tiered pricing
Consider a simplified EUR/USD quote chain. An interbank venue shows a bid/ask of 1.1000/1.1001. A tier-2 bank adds a markup for a corporate client, and a retail broker adds a further markup for its clients.
The final retail spread is wider than the interbank spread, reflecting the layered structure. Actual markups vary by broker and market conditions.
Often confused with
- break of structure
- Break of structure is a price-action signal marking the end of a trend leg, whereas forex market structure is the institutional framework of the currency market; the visible sign is that break of structure appears as a chart pattern, while forex market structure is described in prose about participants and venues.
- market structure
- Market structure is a general analytical concept of highs and lows used in technical analysis, while forex market structure specifically refers to the foreign exchange market's decentralised organisation; the visible sign is that market structure is applied to any price chart, whereas forex market structure is tied to currency trading and its tiers.