The Forex Market Explained
If you have ever traveled abroad and exchanged cash at the airport, you have used the forex market — probably at its worst exchange rate. Forex, short for foreign exchange, is where one currency is traded for another, and it is the largest market in the world by a wide margin. Every imported phone, every overseas paycheck, every company billing a client in another country passes through it. Yet most people never see it working, because nothing about it looks like the stock market.
You Always Trade a Pair, Never One Currency
When you buy a stock, you buy one asset representing one company. In forex you can never buy a currency on its own. The smallest unit you can trade is a currency pair: one currency priced in terms of another. The euro against the US dollar, written EUR/USD, is the classic example. If the quote is 1.1200, one euro costs 1.12 dollars.
Buying that pair means buying euros and paying with dollars at the same time; selling it does the reverse. This is why forex is a relative market. A rising EUR/USD does not necessarily mean Europe is doing well — it may mean the two economies are doing differently badly, and Europe slightly less badly. Every forex price is a verdict on one economy versus another, never on one alone.
Why No Building Controls It
Stocks trade on exchanges: companies with addresses, opening hours, and rulebooks. Forex has no headquarters and no central server. It is an over-the-counter (OTC) market, a loose network of banks, dealers, and brokers connected by computers, trading directly with each other around the clock.
The design has consequences worth knowing. With no single clearinghouse there is no single official price: each dealer quotes its own, and the differences are usually tiny but real — your broker's price may differ from the next broker's by a fraction of a cent. It also means your counterparty is the broker or bank on the other side of your trade, which makes the choice of broker more than paperwork; the working criteria are in what a broker is and how to choose one.
Who Actually Moves the Prices
Daily turnover is measured in trillions of dollars, and retail traders supply only a thin slice of it. The price on your screen is set far above your head, by four groups. Central banks buy and sell currencies to manage money supply and defend their economies, when a central bank acts, the market listens. Commercial banks deal currency for clients and for their own books, quoting buy and sell prices all day. Multinationals convert earnings and pay suppliers across borders. Large funds move money wherever they expect better returns.
None of these players knows your stop-loss exists. The full roster is described in key market participants; the useful point here is scale, the moves you trade are usually the leftover ripples of decisions made with far bigger amounts.
Pips: How Forex Measures Tiny Moves
Currency prices move in small fractions, so forex has its own unit of measurement. A pip, short for percentage in point, is usually the fourth decimal place of an exchange rate, one ten-thousandth of a unit. When EUR/USD moves from 1.1200 to 1.1201, it has moved one pip. Big news might move a major pair fifty or a hundred pips in a day; a quiet day might manage twenty.
Those small increments are why position sizing works differently here than in stocks, and why the gap between the buy and sell quote, measured in pips, is the real cost of every trade. How that gap forms and when it widens is covered in bid, ask, and spread explained.
A Market That Never Sleeps
Forex runs twenty-four hours a day, five days a week, because somewhere on earth it is always business hours. The week hands off through four major sessions named after their financial centers: Sydney, Tokyo, London, and New York. As Tokyo's day ends, London is opening; as London winds down, New York takes over; and when New York goes quiet, Sydney starts the next day.
The overlaps are where the action concentrates. When London and New York are both open, two of the world's largest financial centers trade the same currencies at once and volume peaks, which usually means tighter spreads and sharper moves. Session timing shapes what kind of trading day you will have; the schedule and its quirks are laid out in trading sessions and market hours and overlaps.
Where a Beginner Fits In
The honest answer: at the bottom of the food chain, but on fair terms. Retail traders get the same quotes, the same sessions, and the same pip moves as everyone else — just smaller. The practical starting points are the same as anywhere: learn on a demo account, stick to the major pairs where liquidity keeps spreads low, and treat session choice as part of the strategy rather than an accident of your free time.
Questions About the Forex Market
Is forex open on weekends?
No. The interbank market closes Friday afternoon New York time and reopens Sunday evening with Sydney. Gaps between Friday's close and Sunday's open are one reason weekend news can hurt Monday opens.
Why does every site show a slightly different exchange rate?
Because there is no single central price. Each dealer builds its own quote from the banks it connects to, then adds a small margin. The differences are usually fractions of a percent.
What actually moves exchange rates?
Interest rate expectations first, then economic releases, then central bank action, then everything else. Rates are relative, a currency strengthens when its economy's outlook improves relative to the counterpart's.
Do I need a lot of money to start?
No — accounts can open small and many brokers offer mini lot sizes. The money is not the barrier; the practice is. Rehearse on a demo until a month of trades looks boring.
Forex is one of several major market types: compare it with the stock market, or step back to what financial markets are.