What happens when you trade forex

Forex trading means buying one currency while selling another at the same time. When you trade, you are betting that the price of one currency will move against another — for example, that the US dollar will strengthen against the euro. You do this through a broker, who holds an account for you and executes the trades you request. The broker charges you a fee (called a spread) on each trade, which is the difference between the buy price and the sell price.

Unlike stocks, which you buy and hold, forex trades are usually closed within hours or days. You open a position, watch the price move, and close it when you decide to take your profit or cut your loss. The entire process happens on computer screens in real time, across global markets that operate 24 hours a day, five days a week.

Key Takeaways

  • Forex trading requires opening an account with a broker, depositing money, and placing buy or sell orders on currency pairs through their trading platform.
  • You control how much money you risk on each trade by setting a position size, and you can use stop-loss orders to automatically close a trade if the price moves against you.
  • The spread — the difference between buy and sell prices — is how brokers make money, and it varies depending on market conditions and which currency pair you are trading.
  • Forex markets move based on economic reports, interest rate decisions, and geopolitical events, so traders watch economic calendars and news to time their trades.
  • Most retail traders lose money because they underestimate risk, trade too frequently, and do not have a written plan before they start.

Opening a forex account and funding it

To trade forex, you first choose a broker and open an account with them. The broker is the company that provides the trading platform — the software where you see prices and place orders. You will need to provide personal information (name, address, Social Security number) and proof of identity, similar to opening a bank account. Most brokers ask for this to comply with anti-money-laundering rules.

Once your account is approved, you deposit money. The amount varies by broker — some accept deposits as low as $100, while others require $1,000 or more. The money sits in your account and serves as your trading capital. This is not money the broker lends you; it is your own money that you control. You can withdraw it at any time, though some brokers charge a fee for withdrawals.

After funding, you log into the trading platform and are ready to place your first trade. The platform shows you live prices for currency pairs, charts of past price movement, and tools to enter and exit trades.

Placing your first trade: the mechanics

A forex trade always involves two currencies — a pair. The most common is EUR/USD (euro and US dollar). When you see EUR/USD at 1.0950, that means one euro costs 1.0950 US dollars. If you think the euro will get stronger, you buy the pair. If you think it will get weaker, you sell the pair.

To place a trade, you select the currency pair, decide how many units you want to trade, and choose buy or sell. The smallest standard unit is called a lot. One standard lot of EUR/USD is 100,000 euros. Most retail brokers let you trade smaller amounts — mini lots (10,000 units) or micro lots (1,000 units) — so you do not need a large account to start.

When you click buy or sell, the broker executes the trade at the current market price (or very close to it). Your account balance when ready reflects the trade. If you bought EUR/USD and the price goes up, your account gains money. If the price goes down, your account loses money. You can close the trade at any time by clicking the opposite button — if you bought, you sell to close.

Managing risk with position size and stop-loss orders

Position size is how many units you trade on a single trade. This is the most important decision you make, because it controls how much money you can lose. If you trade 100,000 units and the price moves against you by just 0.01 (one pip), you lose $100. If you trade 1,000 units, you lose $1. Experienced traders risk only 1 to 2 percent of their account on any single trade.

A stop-loss order is an instruction you place when you open a trade that automatically closes the trade if the price moves against you by a certain amount. For example, if you buy EUR/USD at 1.0950 and set a stop-loss at 1.0930, the trade will close automatically if the price falls to 1.0930. This prevents you from losing more than you planned. Without a stop-loss, you might hold a losing trade hoping it will recover, and lose far more than intended.

A take-profit order works the same way but in your favor — it closes the trade automatically when you reach a profit target. If you buy at 1.0950 and set take-profit at 1.0970, the trade closes when the price reaches 1.0970, locking in your gain.

Understanding spreads and how brokers make money

The spread is the difference between the price at which you can buy a currency pair and the price at which you can sell it. If EUR/USD shows a bid price of 1.0949 and an ask price of 1.0950, the spread is 0.0001 (one pip). This tiny difference is how the broker makes money — they keep the spread on every trade you make.

Spreads vary depending on the currency pair and market conditions. Major pairs like EUR/USD and GBP/USD have tight spreads (often 1 to 3 pips) because they trade in high volume. Exotic pairs like USD/ZAR (US dollar and South African rand) have wider spreads (10 to 50 pips or more) because fewer people trade them. During major economic announcements, spreads widen because prices move fast and brokers face more risk.

Some brokers also charge a commission per trade in addition to the spread. Others use only the spread. Before opening an account, check the broker's fee structure so you know the true cost of each trade.

What moves forex prices and when to trade

Forex prices move based on economic data, interest rate decisions, and geopolitical events. When the US Federal Reserve raises interest rates, the US dollar typically strengthens because investors want to hold dollars to earn higher returns. When a country's economy slows, its currency usually weakens. Wars, political instability, and trade disputes also move prices.

Traders watch economic calendars — published schedules of upcoming economic reports — to time their trades around major announcements. Reports like employment data, inflation figures, and GDP growth are released on set dates and times. Prices often move sharply in the minutes after these releases, creating both opportunity and risk.

The forex market is open 24 hours a day, but not all hours are equally active. The market is quietest during the Asian session (roughly 8 p.m. to 4 a.m. US Eastern time) and most active during the overlap of the European and US sessions (roughly 8 a.m. to noon US Eastern time). Many traders avoid trading during the quietest hours because prices move less and spreads widen.

Common mistakes that lead to losses

Most retail traders lose money within their first year. The most common mistakes are trading too large (risking more than 2 percent per trade), trading too often (opening dozens of trades per day), and trading without a plan. A plan means deciding in advance what price levels you will buy or sell at, where you will place your stop-loss, and where you will take profit — before you open the trade.

Another mistake is holding losing trades too long, hoping the price will reverse. Forex prices can move against you for days or weeks. If you do not have a stop-loss, you might watch your account shrink by 50 percent or more. Experienced traders close losing trades quickly and move on to the next opportunity.

Overconfidence after a few winning trades is also dangerous. A trader might win five trades in a row and then increase position size, only to lose a large trade and wipe out all previous gains. Successful traders keep position size consistent regardless of recent wins or losses.

Frequently Asked Questions

Do I need a lot of money to start forex trading?

No. Many brokers accept deposits of $100 or less and allow you to trade micro lots (1,000 units), which means you can control a small amount of currency with a small account. However, starting with at least $500 to $1,000 gives you room to trade without risking your entire account on a single trade.

Can I make money trading forex part-time?

Yes, but it requires discipline and a written plan. Part-time traders often do better than full-time traders because they trade less frequently and take only high-probability setups. The key is treating it as a business, not gambling — track every trade, review what went wrong, and adjust your approach.

What is leverage and should I use it?

Leverage is borrowed money the broker lends you to control a larger position. With 50:1 leverage, a $1,000 deposit lets you control $50,000 worth of currency. Leverage amplifies both gains and losses. Most retail traders should avoid leverage or use very little (no more than 2:1) until they have consistent profits for at least one year.

How do I know if a broker is legitimate?

Check whether the broker is regulated by a financial authority in its home country — for example, the SEC or CFTC in the US, the FCA in the UK, or ASIC in Australia. Regulated brokers must follow rules about how they handle customer money and how they operate. Avoid brokers that are not regulated or that make promises of may provide profits.

What is the difference between a demo account and a real account?

A demo account uses fake money and lets you practice trading without risk. A real account uses your own money. Most brokers offer free demo accounts for 30 days. Use a demo account to learn the platform and test your trading plan before depositing real money.