A currency pair shows how much of one currency is needed to buy another. In EUR/USD = 1.1000, the euro is worth 1.1000 U.S. dollars. The first currency is the base currency; the second is the quote currency.
That simple format controls how a currency trade is interpreted, whether a position gains or loses, how spreads are charged, and how much a price movement is worth. It also explains why “the euro is rising” is incomplete: the euro may rise against the dollar while falling against the yen.
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What a currency pair means
A currency pair is a quoted relationship between two currencies:
BASE/QUOTE = quote-currency units needed to buy one base-currency unitFor example:
| Pair and rate | Meaning |
|---|---|
EUR/USD = 1.1000 |
€1 costs $1.1000 |
GBP/USD = 1.2700 |
£1 costs $1.2700 |
USD/JPY = 150.00 |
$1 costs ¥150.00 |
USD/CAD = 1.3600 |
US$1 costs C$1.3600 |
If EUR/USD rises from 1.1000 to 1.1200, the euro has strengthened against the dollar, or the dollar has weakened against the euro. The reverse quote moves in the opposite direction:
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USD/EUR = 1 ÷ EUR/USDSo if EUR/USD = 1.1000, then USD/EUR is approximately 0.9091. Changing the order of the currencies changes the meaning of the rate.
Base currency versus quote currency
The base currency is always the first currency in the pair. The quote currency, also called the terms currency, is always second.
Buying EUR/USD means buying euros and selling dollars. Selling EUR/USD means selling euros and buying dollars. This is why the direction of the pair matters:
- Long EUR/USD: long euros and short dollars. The position benefits if EUR/USD rises.
- Short EUR/USD: short euros and long dollars. The position benefits if EUR/USD falls.
“Long the euro” is not precise enough by itself. Long EUR/USD expresses a view on the euro against the dollar; long EUR/JPY expresses a view on the euro against the yen.
Major, cross and exotic currency pairs
Market participants commonly group pairs by their currencies and trading activity. These labels are conventions rather than separate legal categories.
| Type | Typical examples | General characteristics |
|---|---|---|
| Major pairs | EUR/USD, USD/JPY, GBP/USD, USD/CHF, AUD/USD, USD/CAD, NZD/USD | Usually involve the U.S. dollar and tend to have deep liquidity. |
| Cross pairs | EUR/GBP, EUR/JPY, GBP/JPY | Do not include the U.S. dollar. |
| Exotic pairs | USD/TRY, USD/ZAR, USD/MXN | Usually combine a major currency with a less actively traded or emerging-market currency. |
The U.S. dollar remains central to the market. The BIS April 2025 survey found that the dollar was on one side of 89.2% of all foreign-exchange trades, and all ten of the most-traded pairs involved the dollar. Cross pairs still trade directly, but their pricing can be influenced by the related dollar markets.
For example, an indicative EUR/GBP cross rate can be calculated from two dollar pairs:
EUR/GBP = EUR/USD ÷ GBP/USDBid, ask and spread
A tradable quote normally has two prices. A dealer might show:
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EUR/USD 1.1000 / 1.1002- Bid: 1.1000 — the dealer’s buying price for euros.
- Ask: 1.1002 — the dealer’s selling price for euros.
- Spread: 0.0002 — the difference between the ask and bid.
A customer buying EUR/USD pays the ask. A customer selling EUR/USD receives the bid. The spread is therefore an immediate cost, before any commission, financing charge or tax.
Using the quote above, someone buying 100,000 euros pays:
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100,000 × 1.1002 = $110,020If the position is immediately sold, it is sold at the bid:
100,000 × 1.1000 = $110,000The immediate spread cost is $20. The market has not necessarily moved; the difference comes from buying at the ask and selling at the bid.
Spreads are not constant. They can widen during economic announcements, market openings and closings, holidays, thin trading periods, sharp volatility and platform or liquidity-provider disruptions. A displayed midpoint or reference rate may not be an executable price.
Pips, points and fractional pips
A pip is a conventional unit used to describe a small foreign-exchange price movement. For many pairs that do not include the yen, one pip is 0.0001. For many yen pairs, one pip is 0.01.
| Pair | Common pip size | Example one-pip move |
|---|---|---|
| EUR/USD | 0.0001 | 1.1000 to 1.1001 |
| GBP/USD | 0.0001 | 1.2700 to 1.2701 |
| USD/JPY | 0.01 | 150.00 to 150.01 |
Many retail platforms display an additional decimal place. This may be called a fractional pip, pipette or point. A move from 1.10000 to 1.10010 is 0.00010: one fractional pip, or one-tenth of a standard EUR/USD pip under the conventional terminology.
The exact minimum price increment depends on the product and venue, so traders should check the broker’s contract specifications instead of assuming that every platform uses the same number of decimals.
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Pip value depends on position size, pip size, the quote currency and the currency used for the trading account.
For a 100,000-euro EUR/USD position:
Position size: 100,000 EUR
Pip size: 0.0001
Pip value: 100,000 × 0.0001 = $10That $10 value applies because the position is 100,000 euros and the quote currency is U.S. dollars. It does not automatically apply to USD/JPY, cross pairs or an account denominated in another currency.
How a currency-pair trade works
- Choose the pair. For example, EUR/USD.
- Read the quote direction. A rising EUR/USD means the euro is gaining relative to the dollar.
- Choose the position direction. Buy the pair if you want to be long the base currency relative to the quote currency; sell it if you want the opposite.
- Check the tradable side. A buy executes at the ask and a sell executes at the bid.
- Account for the spread, commission and financing. These costs affect the break-even price.
- Close the position using the relevant opposite quote. A long position is closed by selling; a short position is closed by buying.
For a long position, profit or loss is generally based on the change in the pair’s executable exit price multiplied by the position size. A displayed chart midpoint or an external reference rate may not match the price available when the order is closed.
Spot, forwards and swaps
Spot FX
A spot FX transaction is agreed on the trade date for delivery or cash settlement under the market’s near-term convention. For many pairs, settlement is commonly T+2, meaning two business days after the trade date. USD/CAD commonly settles T+1, and holidays affecting either currency can change the value date.
“Spot” does not mean that currencies necessarily change hands instantly. In many retail leveraged products, the customer does not receive or deliver the underlying currencies. The position is instead maintained or closed under the dealer’s contract terms.
Outright forwards
An outright forward fixes an exchange rate today for delivery or cash settlement on a future date, usually more than two business days later. Businesses may use forwards to hedge a known future payment or receipt.
A forward rate is not simply a forecast of the future spot rate. It is principally shaped by the spot rate, the interest-rate difference between the currencies, funding conditions, maturity and the dealer’s pricing.
FX swaps
An FX swap combines an exchange of currencies on one value date with an agreement to reverse that exchange on a later date. Both legs are agreed with the same counterparty. FX swaps are widely used for short-term funding, liquidity management, hedging and rolling currency exposures.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteAn FX swap is different from a cross-currency swap. A cross-currency swap is generally a longer-term contract involving principal exchanges and periodic interest payments in different currencies.
Non-deliverable forwards
A non-deliverable forward, or NDF, normally does not deliver the restricted or less freely convertible currency. Instead, the parties settle the difference between the contracted rate and a reference rate on an agreed notional amount. It may look like an ordinary currency-pair quote while having different settlement mechanics.
What makes currency pairs move?
A pair moves when the market changes its relative valuation of the two currencies. Common influences include:
- Interest-rate expectations and central-bank decisions.
- Inflation, employment and economic-growth data.
- Trade balances and current-account conditions.
- Government budgets, elections and political developments.
- Commodity prices, especially for commodity-linked currencies.
- Investment flows into or out of bonds, shares and other assets.
- Corporate hedging and institutional demand.
- Liquidity, funding conditions and broader risk appetite.
The comparison is always relative. A currency can strengthen against one currency and weaken against another at the same time.
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Where currency trading takes place
Institutional spot FX is primarily an over-the-counter market. It is a network of banks, dealers, electronic communication networks, platforms and other counterparties rather than one worldwide exchange.
In U.S. retail OTC forex, a customer generally trades through a dealer. The dealer may be the customer’s counterparty and controls the quote stream and trading conditions shown on its platform. This is different from exchange-traded currency futures and options, which use standardized contracts, a central order book and centralized clearing.
Trading hours and weekend gaps
FX trading generally follows the global business week, moving through financial centers from Sydney to Asia, Europe and North America. It is broadly available 24 hours a day from Monday through Friday, but it is not a 24/7 market. The underlying market is generally closed over the weekend.
A retail platform may remain accessible while the market is closed, but this does not create a live central weekend market. The broker may freeze quotes, show indicative prices or apply special terms.
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When trading resumes, the pair can open at a different price from its Friday close. This is a weekend gap. A stop order may execute at the next available price rather than exactly at its trigger level.
Leverage, margin and liquidation
Margin allows a trader to control a position larger than the cash deposited. It increases the impact of every price movement: gains can be larger, but losses can consume the account quickly.
For U.S. retail OTC forex, the minimum required security deposit is generally 2% of notional value for major currency pairs and 5% for other pairs. Those figures correspond to nominal maximum leverage of 50:1 and 20:1 respectively, subject to the applicable regulatory definitions and account rules.
A broker can require additional funds or close positions when an account no longer meets its margin requirements. The CFTC warns that OTC forex customers can lose all of their margin and potentially more, depending on the account agreement and applicable protections.
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A leveraged position held beyond a broker’s daily cutoff may receive a financing, rollover or swap adjustment. The amount depends on the currencies, position direction, notional size, interest-rate differences, broker methodology, liquidity and funding costs.
The charge is not necessarily equal to the difference between the two central-bank policy rates. Dealer markups, balance-sheet costs and market conventions can also affect it. As a result, a position can be correct on direction and still lose money if financing charges exceed the trading gain.
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Slippage
Slippage occurs when an order fills at a different price from the quote shown when the order was submitted. It can be positive or negative, but fast markets make unfavorable slippage more likely.
Stop orders and bid/ask triggers
A stop order becomes executable when its trigger condition is reached. In a rapidly moving market, the next available price may be substantially worse than the stop level.
Bid and ask prices also matter. A long position is commonly stopped using the bid because it must be sold at the bid. A short position is commonly stopped using the ask because it must be bought back at the ask. A chart showing only midpoint or bid prices can therefore appear not to have reached a level that triggered on the other side of the spread.
Reference rates are not execution prices
Different platforms can show slightly different prices because they use different liquidity providers, markups, timestamps, holiday calendars and bid/ask conventions. A central-bank reference rate is generally intended for information, valuation or reporting, not as a guaranteed price at which a customer can trade. The ECB, for example, describes its euro reference rates as informational and discourages using them for transaction purposes.
How large is the FX market?
The BIS April 2025 survey measured global foreign-exchange turnover at approximately $9.6 trillion per day. FX swaps were the largest instrument at about $4 trillion per day; spot transactions accounted for about 31% of turnover and outright forwards about 19%.
The dollar was on one side of 89.2% of trades, the euro on 28.9%, the yen on 16.8%, sterling on 10.2%, the renminbi on 8.5% and the Swiss franc on 6.4%. Currency shares add to 200% because every transaction involves two currencies.
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| Claim | What is actually true |
|---|---|
| “Forex trades on one global exchange.” | Institutional spot FX is mainly OTC and fragmented. Futures and options are separate exchange-traded products. |
| “Forex is open 24/7.” | It generally trades around the clock on weekdays, not continuously through weekends. |
| “The displayed exchange rate is what I will receive.” | Execution normally occurs at the bid or ask, not necessarily at a midpoint or reference rate. |
| “One pip always equals 0.0001.” | That is a common convention for many pairs. Yen pairs, fractional pricing and venue specifications can differ. |
| “A forward rate predicts the future spot rate.” | A forward rate is a contractual rate influenced by spot, interest rates, funding and maturity. |
| “A broker shows the single global FX price.” | Retail OTC dealers can have their own quote streams and execution conditions. |
FAQ
What is the easiest way to read a currency pair?
Read it from left to right. The first currency is the base, and the number tells you how many units of the second, or quote, currency buy one unit of the base. Thus, EUR/USD at 1.1000 means €1 equals $1.1000.
What happens when I buy a currency pair?
You buy the base currency and sell the quote currency. Buying EUR/USD means buying euros and selling dollars. The position generally gains if EUR/USD rises.
Why are there two prices for a currency pair?
The bid is the dealer’s buying price for the base currency, while the ask is the dealer’s selling price. The difference is the spread, which is an execution cost.
How much is one pip worth?
There is no universal cash value. Pip value depends on position size, the pair’s pip size, the quote currency and your account currency. For example, one pip on a 100,000-euro EUR/USD position is conventionally worth $10.
Are currency pairs traded 24 hours a day?
They generally trade around the clock from Monday through Friday as activity moves between global financial centers. The underlying market is not continuously open on Saturday and Sunday.
What is the difference between spot FX and a currency forward?
Spot FX settles under a near-term market convention, commonly T+2. A forward sets the exchange rate today for a future value date. A forward rate is not guaranteed to predict the future spot rate.
Can leverage make me lose more than I deposit?
It can, depending on the product, account agreement and legal protections. Leverage magnifies losses, and the CFTC warns that OTC forex customers may lose all of their margin and potentially more.
The Bottom Line
Currency pairs are ratios, not single currencies: the first currency is bought or sold against the second. To interpret a trade correctly, identify the base and quote currencies, check whether you are dealing at the bid or ask, calculate the spread and pip value, and account for leverage, financing and execution risk.
The most important practical distinction is between a reference price and an executable quote. A broker’s bid and ask, not a rounded chart price or central-bank reference rate, determine what a retail trade can actually cost or return.
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