The foreign exchange market — Forex or FX — is the largest and most liquid financial market on earth, with more than $7.5 trillion changing hands every single day. Yet its core idea is simple: you exchange one currency for another, hoping the one you hold rises in value. This guide breaks the essentials down into plain English so you can start with confidence.
What Is the Forex Market?
Unlike the stock market, Forex has no central exchange. It runs "over the counter" (OTC) across a global network of banks, brokers, institutions and individual traders. Because those participants span every time zone, the market stays open 24 hours a day, five days a week — from the Sydney open on Monday morning to the New York close on Friday evening. That constant availability is one of the reasons Forex is so accessible to part-time and full-time traders alike.
How a Currency Pair Works
Every Forex trade involves two currencies at once — you buy one while selling the other. That's why prices are always quoted as a pair, such as EUR/USD. The first currency is the base; the second is the quote. If EUR/USD is trading at 1.0850, it means one euro is worth 1.0850 US dollars.
- Major pairs always include the US dollar — EUR/USD, GBP/USD, USD/JPY. They have the tightest spreads and deepest liquidity.
- Minor pairs (crosses) exclude the USD — for example EUR/GBP or AUD/JPY.
- Exotic pairs combine a major currency with one from a smaller economy, like USD/TRY. They move sharply and carry wider spreads.
Key Terms Every Beginner Must Know
The Four Trading Sessions
Turning Costs Into Cashback
Every trade you place carries a cost — the spread or commission. What most beginners don't realise is that a portion of that cost can be returned to you as cashback. Through Say Affiliates, you earn an automatic rebate on every trade with a partner broker, whether the trade wins or loses. Over hundreds of trades, that adds up to a meaningful second income stream on top of your profits.
Register free, choose a regulated low-spread broker from the Say Affiliates network, and earn rebates on every trade as you learn.



