What Is Forex Trading — The World's Largest Market Explained
The forex market trades $7 trillion daily and never closes. Here's how it works, what moves currencies, and why most retail forex traders lose money.
Basics · June 27, 2026 · 6 min read
Forex (foreign exchange) trading is the buying and selling of currency pairs — simultaneously buying one currency while selling another. When you trade EUR/USD, you are buying euros and selling US dollars (or vice versa). The forex market is the largest financial market in the world by daily volume — over $7 trillion per day — and unlike stock markets, it operates 24 hours a day, 5 days a week, across major financial centers in Sydney, Tokyo, London, and New York. This continuous trading creates opportunities and risks that don't exist in equity markets.
How Currency Pairs Work
A currency pair consists of a base currency and a quote currency. EUR/USD at 1.1050 means 1 euro buys 1.1050 US dollars. If you expect the euro to strengthen against the dollar, you buy EUR/USD (go long). If you expect the dollar to strengthen against the euro, you sell EUR/USD (go short). Major pairs (EUR/USD, GBP/USD, USD/JPY, USD/CHF) are the most liquid with the tightest spreads. Minor pairs exclude the USD. Exotic pairs (USD/TRY, USD/ZAR) involve emerging market currencies and have much wider spreads and higher volatility.
What Moves Currency Prices
Currency values are driven primarily by: Interest rate differentials — a currency from a country with higher interest rates tends to appreciate as capital flows in seeking higher yields. Economic data — GDP growth, employment numbers, inflation data. The US Non-Farm Payrolls (NFP) report, released the first Friday of each month, is the single most market-moving economic release in forex. Central bank policy — statements and decisions by the Fed, ECB, Bank of England, and Bank of Japan consistently produce the largest forex moves. Geopolitical events — wars, elections, and trade disputes create safe-haven flows into the USD, JPY, and CHF.
Why Most Retail Forex Traders Lose
Forex brokers in most jurisdictions are required to publish what percentage of their retail clients lose money. The number is consistently between 70–85%. Why? Leverage is the primary culprit — retail forex brokers offer leverage up to 500:1, and many traders use far more than they should, resulting in account blow-ups on normal market moves. Additionally, forex markets are dominated by institutional players (banks, hedge funds, central banks) with far better information and execution than retail traders. Retail traders who succeed in forex typically use lower leverage, strict risk management, and trade with the macro trend rather than against it.
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