What happens when you trade currencies in the forex market

Forex trading means buying one currency while selling another at the same time. When you trade forex, you are betting that the price of one currency will move against another. For example, if you buy euros and sell US dollars, you profit when the euro becomes worth more dollars than when you started. If the euro weakens instead, you lose money. The price moves constantly — sometimes by fractions of a cent per unit — and traders try to enter and exit positions to capture those movements.

The forex market operates 24 hours a day, five days a week across major financial centres: Tokyo, London, and New York. There is no single physical location; instead, banks, brokers, and traders connect electronically and trade over the counter, meaning directly with each other rather than through a central exchange. This decentralized structure means prices can vary slightly between brokers, and trades settle in real time or within one to two days depending on the currency pair and the broker's rules.

You do not need to own actual currency to trade forex. Instead, you open an account with a forex broker, deposit money, and the broker gives you access to trading platforms where you can place orders. The broker acts as your counterparty — they take the other side of your trade. If you buy euros, the broker sells them to you. If you sell dollars, the broker buys them from you. The broker makes money through the spread, which is the difference between the buy price and the sell price they quote you.

Key Takeaways

  • Forex trades always involve two currencies at once: you buy one and sell the other simultaneously, betting on how their relative value will change.
  • The market trades 24 hours a day through electronic networks connecting banks and brokers, not through a central exchange like stock markets.
  • Brokers profit from the spread — the gap between their buy and sell prices — and most retail traders trade on margin, meaning they borrow money from the broker to control larger positions than their account balance allows.
  • Currency pairs are quoted as a ratio showing how much of the second currency you need to buy one unit of the first; EUR/USD 1.10 means one euro costs 1.10 US dollars.
  • Leverage amplifies both gains and losses, so a small move in the currency pair can wipe out your entire deposit or force the broker to close your position automatically.

How currency pairs are quoted and what the numbers mean

Every forex trade involves a pair of currencies written as a code like EUR/USD or GBP/JPY. The first currency is the base currency and the second is the quote currency. The price tells you how much of the quote currency you need to buy one unit of the base currency. If EUR/USD is quoted at 1.10, that means one euro costs 1.10 US dollars.

The bid price is what the broker will pay you if you sell the base currency. The ask price is what the broker will charge you if you buy the base currency. The spread is the difference between them. On a major pair like EUR/USD, the spread might be 0.0002 (two pips, where a pip is the smallest price movement). On less-traded pairs, the spread widens to 0.0005 or more. You pay the spread every time you enter a trade, so it is a real cost that eats into your profit or adds to your loss.

Prices move in increments called pips. For most currency pairs, one pip equals 0.0001. If EUR/USD moves from 1.1050 to 1.1051, that is one pip of movement. For pairs involving the Japanese yen, one pip is 0.01 because the yen is quoted with fewer decimal places. Understanding pips matters because brokers often describe leverage, margin requirements, and stop-loss distances in pips.

Margin and leverage: how brokers let you control large positions with small deposits

Most retail forex traders do not deposit enough money to buy actual currency in the quantities they want to trade. Instead, brokers offer margin, which is a loan. If your broker offers 50:1 leverage, you can control $50,000 worth of currency with a $1,000 deposit. The $1,000 is your margin — the money you put up. The broker lends you the rest.

Leverage works both ways. If EUR/USD moves 100 pips in your favour and you are trading one standard lot (100,000 units of the base currency) with 50:1 leverage, your $1,000 margin turns into roughly $1,100 — a 10 percent gain. But if the pair moves 100 pips against you, your $1,000 becomes $900. Move 1,000 pips against you and your margin is gone. Move further and you owe the broker money.

To prevent losses larger than your deposit, brokers use margin calls and stop-outs. A margin call is a warning that your account equity has fallen to a certain level — often 50 percent of your margin requirement — and you need to deposit more money or close positions. A stop-out is automatic: when your equity falls below a threshold (often 20 percent of margin), the broker closes your positions without asking. You lose your deposit but do not owe additional money. The exact levels vary by broker and by regulation in your country.

How trades are executed and what happens after you place an order

You place an order through your broker's trading platform by selecting a currency pair, choosing buy or sell, entering the position size, and submitting. The order goes to the broker's server. If it is a market order — meaning you accept the current bid or ask price — it executes almost when ready. If it is a limit order — meaning you set a price you want and wait for the market to reach it — it sits until that price appears or you cancel it.

Once your order fills, you own a position. You can close it anytime during market hours by placing an opposite order: if you bought EUR/USD, you sell it to close. The difference between your entry price and exit price, multiplied by the position size, is your profit or loss. The broker calculates this in real time and shows it on your account dashboard.

Most brokers let you set a stop-loss order when you enter a trade. This is an instruction to close your position automatically if the price moves against you by a certain amount. If you buy EUR/USD at 1.1050 and set a stop-loss at 1.1040, the broker will sell your position if the price falls to 1.1040, capping your loss at 100 pips. Stop-losses do not always execute at exactly the price you set — in fast-moving markets, the price can gap past your stop and you close at a worse price — but they provide a safety mechanism.

The role of economic data and central banks in moving currency prices

Currency prices move based on supply and demand, which is driven by economic data, interest rates, and geopolitical events. When the US Federal Reserve raises interest rates, investors want to hold more US dollars to earn that higher return, so demand for dollars increases and the dollar strengthens. When the European Central Bank signals it will keep rates low, demand for euros weakens.

Major economic reports move prices sharply. Employment data, inflation reports, and GDP figures are released on set schedules and traders position themselves ahead of these announcements. A report that surprises the market — showing stronger or weaker economic growth than expected — can move a currency pair 100 pips or more in seconds. This volatility creates opportunity but also risk, especially for traders using high leverage.

Central bank statements and policy decisions are the biggest price movers. When a central bank announces a rate change or signals a shift in policy, currency pairs can swing hundreds of pips. Traders watch central bank calendars and news feeds to stay ahead of these events. Some brokers widen spreads or restrict trading during major announcements to protect themselves from the volatility.

The difference between spot forex and forex derivatives

Most retail traders trade spot forex, which means buying and selling actual currency for delivery in two business days. You do not take physical delivery — the broker handles settlement — but you own the currency during those two days and earn any interest paid on it.

Some traders use forex forwards or forex futures instead. A forward is a contract to exchange currencies at a set price on a future date, customized between you and the broker. A futures contract is standardized and trades on an exchange like the Chicago Mercantile Exchange. Futures have set contract sizes, expiration dates, and settlement rules. They are less common for retail traders but offer more transparency and lower counterparty risk because the exchange guarantees the trade.

Spot forex is simpler to enter and exit — you can close a position anytime during market hours — but you are trading directly with your broker, so the broker's financial health matters. Futures are harder to enter and exit quickly but the exchange stands between you and your counterparty, reducing the risk that your broker fails and you lose your money.

Costs beyond the spread: commissions, overnight fees, and slippage

The spread is not the only cost. Some brokers charge a commission per trade on top of the spread, usually a small percentage of the trade size or a flat fee per lot. Others use a wider spread and no commission. Compare the total cost, not just the spread.

If you hold a position overnight, you pay or earn rollover interest, also called swap. This is the difference in interest rates between the two currencies. If you buy a high-interest-rate currency and sell a low-interest-rate currency, you earn rollover. If you do the opposite, you pay it. Rollover is calculated daily and added to or subtracted from your account. On some pairs, rollover can be significant enough to matter to your profit or loss.

Slippage is the difference between the price you expected to fill at and the price you actually filled at. In fast-moving markets or during news events, your market order might fill at a worse price than the quote you saw. Limit orders prevent slippage but they might not fill at all if the price never reaches your limit.

Frequently Asked Questions

What is the minimum amount of money I need to start forex trading?

Most brokers accept deposits as low as $100 or $500, though some require $1,000 or more. The real question is position size: with $500 and 50:1 leverage, you can control $25,000 of currency, but a 100-pip move against you wipes out your account. Many traders start with larger deposits to survive normal market swings without losing everything on one trade.

Can I make money trading forex consistently?

Some traders do, but most retail traders lose money. Forex is zero-sum: for every winner there is a loser. You are competing against professional traders, banks, and algorithms with better information and faster execution. Consistent profit requires a tested strategy, strict risk management, and emotional discipline. Most people underestimate how hard this is.

What time of day should I trade forex?

The market is most liquid and spreads are tightest during the overlap of London and New York trading hours, roughly 8 AM to 12 PM Eastern Time. Asian hours (Tokyo) have lower volume and wider spreads. Choose times when the pairs you trade are most active. Avoid trading during major news announcements unless you are specifically trading the volatility.

How do I know if a forex broker is legitimate?

Check whether the broker is regulated by a financial authority in its country. In the US, brokers must be registered with the National Futures Association and the Commodity Futures Trading Commission. In the UK, the Financial Conduct Authority regulates brokers. Regulated brokers have minimum capital requirements and customer protection rules. Unregulated brokers offer no protection if they fail or steal your money.

What is the difference between a pip and a point?

A pip is the standard unit of price movement in forex, equal to 0.0001 for most pairs and 0.01 for yen pairs. A point sometimes refers to the same thing, but some brokers use "point" to mean 0.00001 (one-tenth of a pip), called a pipette. Check your broker's definition because it affects how they quote leverage, spreads, and profit and loss.