Forex Markets

An Introduction to Forex Markets

By AboutForexMarkets Editorial Team · Reviewed by Sanjesh G. Reddy

Every three years, the Bank for International Settlements counts the money moving through the world's currency desks. The April 2025 tally came to $9.6 trillion per day, up 28 percent from $7.5 trillion in 2022, according to the Bank for International Settlements Triennial Survey. A number that size stops meaning much on its own. What it says in practice is that currencies, not stocks, are the largest market human beings have ever built, and most people have never traded in it.

Forex is the market where one currency is exchanged for another. Euros for dollars, yen for pounds, always quoted in currency pairs. There is no opening bell and no single building where it happens. Trading follows the sun from Sydney to Tokyo to London to New York, five days a week, through a web of banks and dealers rather than a central exchange.

The retail version of this market deserves honest framing from the first paragraph. Brokers advertise leverage that lets a small deposit control a much larger position, and that same arithmetic works in both directions. Regulators in Europe and the UK require brokers to publish what happens next: most retail accounts lose money. This site exists to explain the machinery anyway, because people trade currencies whether or not anyone warns them, and a trader who understands margin math, practice with demo accounts, and disciplined strategies walks in with fewer illusions than one who learned from a broker ad.

Who Trades Forex and Why

The daily $9.6 trillion is not one crowd. It is at least five, with different goals, different time horizons, and wildly different amounts of information.

Central Banks and Sovereign Institutions

Central banks hold the biggest sticks in the market. They manage national reserves, set the interest rates that drive currency values, and, when a move gets disorderly, they intervene outright. Japan's Ministry of Finance spent roughly ¥9.2 trillion, about $63 billion, across three intervention days in September and October 2022 defending the yen, and published the figures afterward in MOF's published intervention records. When a central bank steps in, everyone else's chart becomes a footnote.

Commercial and Investment Banks

A handful of large dealing banks sit at the center of the market, quoting prices to each other and to everyone below them. Surveys such as the Euromoney FX Survey have tracked for years how concentrated this business is, with the top dealers handling a large share of global flow. Banks trade for clients, hedge their own books, and profit from the spread between what they pay and what they charge.

Hedge Funds and Asset Managers

Funds treat currencies as positions rather than plumbing. A macro fund might short a currency it believes is propped up by an unsustainable policy, or harvest the interest gap between two rates in a carry trade. Asset managers running global portfolios trade forex more quietly, hedging the currency exposure that comes attached to every foreign stock and bond they hold.

Multinational Corporations

A German manufacturer that sells machines in the United States earns dollars but pays wages in euros. Somebody in its treasury department has to close that gap, and forwards and swaps exist for exactly this. Corporate flow is enormous and mostly indifferent to short-term price movement, which makes it different in kind from speculation: the company is not trying to win, it is trying to stop caring about the exchange rate.

Retail Traders

Individuals are the smallest slice of the market, a low single-digit percentage of turnover by most industry estimates, though brokers spend outsized marketing budgets recruiting them. Retail platforms made participation possible with limited starting capital, which is genuinely new; a private person could not call a dealing desk in 1995. The catch is that access arrived faster than education, which is why the loss-rate disclosures exist and why retail traders who study the market first remain the exception rather than the rule.

Retail traders do hold one genuine advantage over every institution on this list: nobody forces them to trade. A bank must quote prices all day. A corporate treasurer must hedge the invoice due in March. An individual can sit in cash for a month waiting for a setup worth taking, and the ones who last tend to treat that patience as their edge rather than their weakness.

The Scale of the Forex Market

Comparisons make the size legible. On a typical day, all U.S. stock exchanges together, including NYSE and Nasdaq, trade somewhere between $500 and $700 billion by Cboe Global Markets equity statistics. The currency market moves more than ten times that. It absorbs central bank interventions, corporate hedging programs, and speculative flows all at once, and its benchmark prices barely flinch.

The market is also lopsided in ways beginners rarely expect. The U.S. dollar stands on one side of about 89 percent of all trades, per the BIS 2025 Triennial, which is why the dollar's health sets the weather for everything else. EUR/USD is the single most traded pair. Liquidity thins out fast beyond the majors, and exotic pairs carry spreads wide enough to eat a casual trader's edge before the trade has moved a pip.

Depth has a practical consequence: in the major pairs, the market fills large orders without much slippage during busy hours. That reliability, more than any get-rich story, is the real reason institutions run the currency market around the clock.

Scale filters down to the retail screen in one place above all: transaction cost. A market this deep keeps spreads on EUR/USD at a fraction of a pip with the right broker during London hours, while a thinly traded exotic might cost thirty times as much to enter and exit. Beginners tend to obsess over direction and ignore cost, but cost is the one variable a trader controls completely, through the pair they pick, the hours they trade, and the account type they open. The market's size is abstract. The spread on your ticket is not.

How the Forex Market Is Structured

Think of the market as tiers rather than a single floor. At the core sits the interbank market, where major dealing banks trade with each other in large size at the tightest prices anywhere. Around that core, prime brokers extend access to funds and institutions large enough to qualify. At the outer edge sit retail brokers, who aggregate prices from liquidity providers and pass them to individual traders, marked up through a spread or a commission.

Every quote on a retail screen is the end of that chain, which is worth remembering when a platform advertises "raw" pricing. The structure also explains why regulation matters so much at the retail tier specifically: your counterparty at the bottom of the chain is the broker itself far more often than beginners assume, and the rules the broker answers to are the main thing standing between you and a bad actor.

Brokers at the retail tier also differ in how they handle your order once it arrives. Some run dealing desks and take the other side of client trades themselves; others route orders onward to liquidity providers, the model behind ECN forex brokers and their close cousins. Neither model is automatically dishonest, and both are legal under serious regulators, but they create different incentives around pricing and execution, which is why our broker guides spend so much time on the distinction before ever discussing platforms or bonuses.

Because the market is decentralized, it never closes as one unit. Sessions hand off around the globe, and conditions change with them. The London-New York overlap concentrates the deepest liquidity and the tightest spreads of the day, while the hours after New York closes and before Tokyo warms up are the thinnest. The same pair can be cheap to trade at noon London time and expensive at 10 p.m., a detail that surprises almost everyone the first time a fill comes back worse than expected.

Getting Started: Your First Steps in Forex

Step 1: Build Your Knowledge Foundation

Learn the machinery before risking anything: pips, lots, margin, spreads, and how a position's size translates into dollars gained or lost per pip of movement. Free material is everywhere, including regulator-run education like the CFTC's Learn & Protect education center, and this site's guides were written to be read in an afternoon. A trader who cannot compute a pip value by hand has no business computing profits in their head.

Run the numbers before you believe them. This site keeps four free tools for exactly that: a position size calculator that turns account balance and stop distance into a lot size, a pip value calculator, a margin calculator, and a market hours clock that shows which sessions are open in your own timezone. Ten minutes with the position size calculator teaches the risk lesson faster than most books manage, because it makes the trade's downside a number instead of a feeling.

Step 2: Choose a Regulated Broker

Regulation is the first filter, not the last checkbox. Confirm a broker's authorization on the regulator's own register before reading a word of its marketing. Our forex broker selection guide walks through what trustworthy looks like, and our broker comparison criteria explain how to weigh costs, platforms, and execution quality against each other once the regulatory bar is cleared.

Step 3: Practice with a Demo Account

A free demo account lets you trade live prices with imaginary money, and every serious broker offers one. Use it to make mistakes that would otherwise cost real cash. Keep one caveat in mind: demo fills are friendlier than real ones, since there is no actual counterparty, so treat demo results as evidence you understand the mechanics rather than proof you will be profitable.

Step 4: Start Small with Live Trading

When real money enters, the psychology changes, so the position size should shrink. A mini or micro account lets you trade while keeping each mistake cheap. Cap the risk on any single trade at one to two percent of the account, hold to a written trading strategy, and keep the published numbers in view: between 74 and 89 percent of retail accounts lose money, per FCA-regulated broker disclosures and ESMA analysis. Staying small while you find out which side of that statistic you land on is the whole game.

Frequently Asked Questions

Important disclaimer: This content is for informational and educational purposes only and does not constitute financial advice, investment advice, or a recommendation to buy, sell, or trade any financial instrument. Forex trading involves substantial risk of loss — between 74-89% of retail CFD and forex accounts lose money according to published FCA-regulated broker disclosures and ESMA product-intervention analysis. Past performance is not indicative of future results. You should not trade with money you cannot afford to lose. Always consult a qualified financial advisor before making investment decisions. aboutforexmarkets.com is not a licensed financial advisor, broker, or dealer.

Regulatory resources: the Bank for International Settlements and the CFTC provide official guidance on forex market statistics and consumer protection.

Current as of July 18, 2026