What is forex? The market, the pair, and what you are actually buying
Forex is the market where currencies are exchanged. What a currency pair really represents, who is on the other side of your trade, where your order goes, and why leverage changes everything.
Forex is the market where one currency is exchanged for another. Every time a company pays an overseas supplier, a tourist buys euros, or a fund hedges its exposure to the yen, that transaction happens here. It is the largest financial market in the world by volume, and unlike a stock exchange it has no central building: it is a network of banks, brokers and electronic venues quoting prices to each other around the clock.
What you are actually buying
A stock is a claim on a company. A currency is not. When you buy EUR/USD you are not buying “the euro” the way you buy a share: you are making an exchange, and the exchange has two sides. You take a long position in the euro and, in the same instant and by the same amount, a short position in the dollar.
That is why currencies are always quoted in pairs. There is no price for the euro on its own, only a price relative to something else. EUR/USD at 1.0850 means one euro costs 1.0850 US dollars. The first currency is the base, the second is the quote. You are always buying the base and selling the quote, or the other way round.
This has a consequence people miss. A trade can go your way because the base got stronger, or because the quote got weaker. If the European Central Bank does nothing and the Federal Reserve cuts rates, EUR/USD can rise without a single thing changing in Europe.
Who is on the other side
The market exists because most participants are not speculating at all:
- Banks trade with each other and quote prices to everyone else. This interbank layer is where the real price is formed.
- Companies convert revenue and hedge future payments. An importer that owes dollars in ninety days does not want to gamble on the exchange rate, so it locks it in.
- Central banks hold reserves and occasionally intervene.
- Funds hedge foreign holdings and take positions.
- Retail traders, which is probably you, are a small share of the total volume.
It matters that the market is not built around retail speculation. The price is moved by flows that have nothing to do with chart patterns: a central bank decision, an export payment, a bond maturing.
Where your trade actually goes
When you click buy in a trading platform, you are not putting an order into a global exchange. You are dealing with your broker. What happens next depends on the broker’s model, and it changes what you pay:
- Some brokers pass your order to a liquidity provider and earn a commission plus a marked-up spread.
- Some take the other side of your trade internally and earn the spread.
- Most do a mix depending on the client and the instrument.
Your fill price, the spread you pay, and whether your stop can be placed where you want are all determined at this layer, not by “the market”. That is why the same strategy produces different results at different brokers, and why the spread deserves more attention than most beginners give it.
The 24-hour day, and why it is not uniform
The market runs from Sunday evening to Friday evening, following the clock around the globe: Sydney, then Tokyo, then London, then New York. But “open 24 hours” does not mean “equally tradeable 24 hours”.
Liquidity concentrates when the large centres are working, and it thins out between them. In the thin hours, spreads widen and price can move further on less volume. A strategy that works in the London session can lose money running the same rules at 3am. See market hours and sessions.
Leverage is the part that changes everything
Currency moves are small. EUR/USD moving from 1.0850 to 1.0870 is a change of about two tenths of one percent. On its own that is not worth trading, so brokers offer leverage: you control a position much larger than the money in your account.
Leverage does not make a strategy better. It multiplies the outcome, whichever way it goes, and it is the reason a small adverse move can close your account. This is the single biggest difference between forex and buying shares, and it is why leverage and margin are worth understanding before you place a first trade rather than after.
What forex is not
- It is not a job with a salary. There is no rate of return that comes with showing up.
- It is not zero-sum against the broker only. You are trading against banks, funds and algorithms with better information and faster execution.
- It is not solved by a better indicator. The distribution of outcomes is dominated by position size and risk control, not by entry signals.
Regulators in several jurisdictions require brokers to publish the percentage of retail accounts that lose money. Look up the current figure for the broker you are considering, which it is generally required to disclose, before you fund anything. See the risk disclosure.
What to read next
- How forex works: quotes, orders and what happens between clicking and being filled.
- Pips: the unit everything is measured in, and why one pip is not always the same money.
- Lots: how position size is expressed.
- Forex for beginners: the whole path in order.
Frequently asked questions
Do I own a currency when I buy a pair?
Not the way you own a share. Buying EUR/USD means taking a long position in the euro and, in the same instant and by the same amount, a short position in the dollar. It is an exchange with two sides, which is why a trade can go your way because the base strengthened or because the quote weakened.
Is the forex market an exchange like a stock market?
No. There is no central venue. It is a network of banks, brokers and electronic platforms quoting prices to each other. When you trade through a retail broker, your order goes to that broker, not to a global order book, which is why the same strategy gives different results at different brokers.
Can I trade forex 24 hours a day?
The market runs from Sunday evening to Friday evening, but it is not equally tradeable throughout. Liquidity concentrates when the large centres are working and thins between them, and in thin hours spreads widen and price moves further on less volume.
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