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Forex Trading Glossary

Clear, practical definitions for every forex trading term you need to know. Browse by category or search for specific terms.

150+ terms · 25 categories · Updated 2026

A B C D E F G H I J K L M N O P Q R S T U V W XYZ

A

Abandoned Baby

A rare three-candle reversal pattern where a doji gaps away from both the preceding and following candles. Bullish when at a low, bearish when at a high.

Candlestick Patterns

Account Balance

The total amount of money in your trading account from deposits, withdrawals, and realized (closed) trades. Does not include floating profit or loss.

Trading Mechanics

Account Equity

The real-time value of your account including open positions. Equity = Account Balance + Floating P/L. Equity determines your margin level and available margin.

Trading Mechanics

Accumulation/Distribution

A cumulative volume-based indicator that uses the relationship between a pair's closing price and its high-low range to determine whether money is flowing into (accumulation) or out of (distribution) a currency pair.

Technical Indicators

All or None (AON)

An order that must be filled entirely or not at all, but unlike fill-or-kill, it does not require immediate execution. The order can wait for full liquidity.

Order Types

Alligator Indicator

A trend indicator developed by Bill Williams consisting of three smoothed moving averages (Jaw, Teeth, Lips) with different periods and forward shifts. When the lines intertwine, the "Alligator is sleeping" (range). When they fan out, it is "eating" (trending).

Technical Indicators

Aroon Indicator

A trend identification system consisting of two lines, Aroon Up and Aroon Down, that measure how recently a pair reached its highest high or lowest low over a set period. Values range from 0 to 100.

Technical Indicators

Ascending Channel

A bullish price structure defined by two parallel upward-sloping trendlines. Price bounces between support (lower line) and resistance (upper line) as the trend moves higher.

Chart Patterns

Ascending Triangle

A bullish continuation pattern with a flat resistance line and a rising trendline connecting higher lows. Price typically breaks upward through the flat resistance.

Chart Patterns

Ask Price

The price at which the market (or broker) is willing to sell a currency pair to you. You buy at the ask price. Also called the offer price.

Trading Mechanics

Asymmetric Slippage

A practice where a broker consistently passes on negative slippage to traders but keeps positive slippage for itself. Considered an unfair execution practice.

Trading Mechanics

Average Directional Index

An indicator that measures the strength of a trend without indicating its direction. ADX values above 25 suggest a strong trend; below 20 indicates a weak or absent trend. Often used with +DI and -DI lines to determine trend direction.

Technical Indicators

Average True Range

A volatility indicator that measures the average range of price bars over a specified period, accounting for gaps. ATR does not indicate direction but shows how much a pair typically moves, helping traders set appropriate stop-losses and position sizes.

Technical Indicators

Awesome Oscillator

A momentum histogram created by Bill Williams that shows the difference between the 5-period and 34-period simple moving averages of bar midpoints (average of high and low). Green bars indicate increasing momentum; red bars indicate decreasing momentum.

Technical Indicators

B

Base Currency

The first currency listed in a currency pair. In EUR/USD, the euro (EUR) is the base currency. One unit of the base currency is priced in terms of the quote currency.

Trading Basics

Bear Flag

A bearish continuation pattern where a sharp decline (the flagpole) is followed by a brief upward-sloping consolidation (the flag). Price typically breaks downward to continue the trend.

Chart Patterns

Bearish Engulfing

A two-candle bearish reversal pattern where a large red candle completely engulfs the body of the preceding green candle. It signals strong selling pressure after a rally.

Candlestick Patterns

Bid Price

The price at which the market (or broker) is willing to buy a currency pair from you. You sell at the bid price.

Trading Mechanics

Bid-Ask Spread

The difference between the bid price and the ask price. The bid-ask spread is the transaction cost of executing a round-trip trade.

Trading Mechanics

Bollinger Bands

A volatility indicator consisting of three lines: a middle simple moving average (typically 20-period) and upper and lower bands set at 2 standard deviations above and below it. The bands expand during high volatility and contract during low volatility.

Technical Indicators

Broadening Formation

A chart pattern where price swings widen over time, forming diverging trendlines. It reflects increasing volatility and disagreement between buyers and sellers.

Chart Patterns

Bull Flag

A bullish continuation pattern where a sharp rally (the flagpole) is followed by a brief downward-sloping consolidation (the flag). Price typically breaks upward to continue the trend.

Chart Patterns

Bullish Belt Hold

A single bullish candle that opens at or near its low and closes near its high with little or no lower wick. It appears in a downtrend and signals aggressive buying from the open.

Candlestick Patterns

Bullish Engulfing

A two-candle bullish reversal pattern where a large green candle completely engulfs the body of the preceding red candle. It signals strong buying momentum after a decline.

Candlestick Patterns

Buy

To open a long position by purchasing a currency pair at the ask price. You buy when you expect the base currency to strengthen against the quote currency.

Trading Basics

C

Camarilla Pivot Points

A variation of standard pivot points that generates eight levels (four support and four resistance) clustered more closely around the current price. Designed for intraday trading, they emphasize range-based mean reversion strategies.

Technical Indicators

Chaikin Oscillator

A volume-based momentum indicator that measures the difference between the 3-day and 10-day exponential moving averages of the Accumulation/Distribution line. It helps identify whether buying or selling pressure is building.

Technical Indicators

Commodity Channel Index

An oscillator that measures the current price level relative to an average price over a given period. Readings above +100 indicate overbought conditions or the start of a strong uptrend, while below -100 signals oversold conditions or the start of a strong downtrend.

Technical Indicators

Contract Size

The number of units of the base currency in one standard lot. For forex, one standard lot is always 100,000 units of the base currency.

Trading Mechanics

Correlation

A statistical measure of how two currency pairs move in relation to each other. Correlation ranges from +1.0 (move identically) to -1.0 (move in exact opposite directions), with 0.0 meaning no relationship.

Risk Management

Cost of Carry

The total cost of holding a forex position over time, including swap charges, financing fees, and the opportunity cost of margin used.

Trading Mechanics

Cross Pair

A currency pair that does not include the US dollar. Cross pairs are traded directly without converting through USD first. Synonymous with minor pair.

Trading Basics

Cup and Handle

A bullish continuation pattern resembling a teacup: a rounded bottom (cup) followed by a small downward drift (handle). The breakout above the cup's rim confirms the pattern.

Chart Patterns

Currency Pair

Two currencies quoted together showing how much of one currency is needed to buy one unit of the other. EUR/USD = 1.0850 means 1 euro costs 1.0850 US dollars.

Trading Basics

D

Daily Cut-Off

The time each day when one trading day officially ends and the next begins. Typically 5:00 PM New York time (10:00 PM GMT). Swap charges are applied at this time.

Trading Mechanics

Dark Cloud Cover

A two-candle bearish reversal pattern where a red candle opens above the prior green candle's high and closes below its midpoint. It warns of weakening bullish momentum.

Candlestick Patterns

Descending Channel

A bearish price structure defined by two parallel downward-sloping trendlines. Price bounces between resistance (upper line) and support (lower line) as the trend moves lower.

Chart Patterns

Descending Triangle

A bearish continuation pattern with a flat support line and a falling trendline connecting lower highs. Price typically breaks downward through the flat support.

Chart Patterns

Detrended Price Oscillator

An indicator that removes the trend from price data to identify cycles and overbought/oversold conditions within the cycle. It compares the closing price to a displaced moving average to isolate the cyclical component of price movement.

Technical Indicators

Diamond

A rare reversal pattern that looks like a diamond shape on the chart, formed by a broadening formation followed by a symmetrical triangle. It typically signals a trend reversal.

Chart Patterns

Diversification

Spreading trading capital across multiple currency pairs, strategies, or timeframes to reduce the impact of any single losing trade or adverse market condition on overall performance.

Risk Management

Doji

A candlestick where the open and close are virtually equal, forming a cross or plus shape. It signals market indecision and a potential reversal.

Candlestick Patterns

Donchian Channel

A trend-following indicator that plots the highest high and lowest low over a set number of periods (default 20). Breakouts above the upper channel or below the lower channel signal potential new trends.

Technical Indicators

Double Bottom

A bullish reversal pattern where the price reaches the same low twice with a bounce in between, forming a "W" shape. The break above the middle peak confirms the reversal.

Chart Patterns

Double Top

A bearish reversal pattern where the price reaches the same high twice with a pullback in between, forming an "M" shape. The break below the middle trough confirms the reversal.

Chart Patterns

Dragonfly Doji

A doji candlestick where the open, close, and high are at the same level with a long lower wick. It signals bullish rejection when appearing at the bottom of a downtrend.

Candlestick Patterns

Drawdown

The decline in an account's value from its peak to its lowest point before recovering. Drawdown is measured as a percentage and is one of the most important metrics for evaluating trading performance.

Risk Management

M

MACD (Moving Average Convergence Divergence)

A trend-following momentum indicator that shows the relationship between two exponential moving averages. The MACD line, signal line, and histogram together help identify trend direction, momentum shifts, and potential entry points.

Technical Indicators

Major Pair

A currency pair that includes the US dollar and one of the other most traded currencies. The seven majors are EUR/USD, GBP/USD, USD/JPY, USD/CHF, AUD/USD, USD/CAD, and NZD/USD.

Trading Basics

Margin

The deposit required to open and maintain a leveraged position. Margin is not a fee. It is collateral held by the broker while your trade is open.

Trading Basics

Margin Call

A notification from your broker that your account equity has fallen below the required maintenance margin level. If triggered, you must either deposit additional funds or close positions to restore your margin ratio.

Risk Management

Margin Level

The ratio of account equity to used margin, expressed as a percentage. Margin level = (Equity / Used Margin) x 100%. Below 100% typically triggers a margin call.

Trading Basics

Market Order

An order to buy or sell immediately at the best available price. Market orders guarantee execution but not a specific price.

Order Types

Marubozu

A candlestick with a long body and no wicks (or very short ones), indicating complete dominance by either buyers or sellers throughout the session.

Candlestick Patterns

Maximum Drawdown

The largest peak-to-trough decline in account value over a specific period. Maximum drawdown (MDD) represents the worst-case loss scenario a strategy has experienced and is a key metric in evaluating risk.

Risk Management

Micro Lot

A trade size of 1,000 units of the base currency, equal to one-hundredth of a standard lot. One pip equals roughly $0.10 on EUR/USD.

Trading Basics

Mini Lot

A trade size of 10,000 units of the base currency, equal to one-tenth of a standard lot. One pip equals roughly $1 on EUR/USD.

Trading Basics

Minor Pair

A currency pair that does not include the US dollar but consists of other major currencies. Examples include EUR/GBP, EUR/JPY, and GBP/JPY. Also called cross pairs.

Trading Basics

Momentum Indicator

A basic oscillator that measures the difference between the current price and the price a set number of periods ago. Unlike the percentage-based Rate of Change, momentum uses absolute price difference and oscillates around zero.

Technical Indicators

Money Flow Index

A volume-weighted RSI that combines price and volume data to measure buying and selling pressure. It oscillates between 0 and 100, with readings above 80 indicating overbought and below 20 indicating oversold conditions.

Technical Indicators

Money Management

The overall discipline of managing trading capital through position sizing, risk limits, and account rules to preserve capital and grow an account sustainably over time.

Risk Management

Morning Star

A three-candle bullish reversal pattern consisting of a large red candle, a small-bodied candle (often a doji), and a large green candle. It signals the end of a downtrend.

Candlestick Patterns

Moving Average

A widely used indicator that smooths price data by calculating the average closing price over a specified number of periods. Moving averages help identify trends and potential support/resistance levels.

Technical Indicators

P

Parabolic SAR

A trend-following indicator that places dots above or below price to indicate the current trend direction and potential reversal points. SAR stands for "Stop and Reverse," reflecting its dual role as a trend identifier and trailing stop.

Technical Indicators

Pennant

A small symmetrical triangle that forms after a sharp move (flagpole), representing a brief pause before the trend continues. It looks like a tiny converging triangle on a pole.

Chart Patterns

Piercing Pattern

A two-candle bullish reversal pattern where a green candle opens below the prior red candle's low and closes above its midpoint. It signals buying strength emerging in a downtrend.

Candlestick Patterns

Pip

The smallest standard unit of price movement in a currency pair. For most pairs, one pip equals 0.0001. For JPY pairs, one pip equals 0.01.

Trading Basics

Pipette

A fractional pip equal to one-tenth of a pip. Shown as the fifth decimal place for most pairs (0.00001) or the third decimal for JPY pairs (0.001).

Trading Basics

Pivot Points

A set of horizontal support and resistance levels calculated from the previous period's high, low, and close. The central pivot, along with S1-S3 support and R1-R3 resistance levels, helps traders identify potential turning points and target prices.

Technical Indicators

Point

On MT4 and MT5 platforms, a point is the smallest price increment. For 5-decimal pairs, 1 point = 0.00001 (one pipette), so 10 points = 1 pip.

Trading Mechanics

Position Sizing

The process of determining how many lots or units to trade based on your account size, risk tolerance, and stop-loss distance. Proper position sizing ensures no single trade can cause catastrophic damage to your account.

Risk Management

R

Rate of Change

A momentum oscillator that measures the percentage change in price between the current period and a specified number of periods ago. Positive values indicate upward momentum; negative values indicate downward momentum.

Technical Indicators

Realized P/L

The actual profit or loss locked in when a position is closed. Realized P/L is added to or deducted from your account balance.

Trading Mechanics

Rectangle

A continuation or reversal pattern where price bounces between horizontal support and resistance lines, forming a box shape. The breakout direction determines the signal.

Chart Patterns

Requote

When a broker rejects your order at the requested price and offers a new price instead. Requotes happen when the price moves during order processing.

Trading Mechanics

Risk Appetite

The general willingness of market participants to take on risk. When risk appetite is high, traders favor higher-yielding currencies and riskier assets. When risk appetite is low, they shift to safe havens.

Risk Management

Risk-Off

A market environment where investors reduce exposure to risky assets and move capital into safe havens. In forex, risk-off typically strengthens USD, JPY, and CHF while weakening commodity and emerging market currencies.

Risk Management

Risk-On

A market environment where investors seek higher returns by moving capital into riskier assets. In forex, risk-on strengthens commodity currencies (AUD, NZD, CAD) and emerging market currencies while weakening traditional safe havens.

Risk Management

Risk-Reward Ratio

The relationship between how much you risk on a trade and how much you stand to gain. A 1:2 risk-reward ratio means you risk $1 to potentially make $2.

Risk Management

Rollover

The process of extending the settlement date of an open forex position to the next trading day. Rollover results in a swap charge or credit based on interest rate differentials.

Trading Mechanics

RSI (Relative Strength Index)

A momentum oscillator that measures the speed and magnitude of recent price changes on a scale of 0 to 100. Readings above 70 suggest overbought conditions; below 30 suggest oversold conditions.

Technical Indicators

S

Sell

To open a short position by selling a currency pair at the bid price. You sell when you expect the base currency to weaken against the quote currency.

Trading Basics

Settlement

The process of completing a trade by exchanging the currencies involved. Spot forex settles on a T+2 basis (two business days after the trade date).

Trading Mechanics

Shooting Star

A bearish reversal candlestick with a small body at the bottom and a long upper wick. It appears at the top of an uptrend, showing that buyers were overwhelmed by sellers.

Candlestick Patterns

Short

A trade position where you sell a currency pair expecting it to fall. Going short on EUR/USD means selling euros and buying US dollars.

Trading Basics

Simple Moving Average

A moving average calculated by adding the closing prices over a set number of periods and dividing by that number. Each price point receives equal weight in the calculation.

Technical Indicators

Slippage

The difference between the expected fill price and the actual fill price of an order. Slippage occurs when market conditions change during order execution.

Trading Mechanics

Spinning Top

A candlestick with a small body centered between relatively long upper and lower wicks. It signals indecision, with neither buyers nor sellers controlling the session.

Candlestick Patterns

Spread

The difference between the bid (sell) price and the ask (buy) price of a currency pair. The spread is the primary cost of making a trade.

Trading Basics

Stochastic Oscillator

A momentum indicator that compares a currency pair's closing price to its price range over a set number of periods. It generates %K and %D lines that oscillate between 0 and 100, with readings above 80 considered overbought and below 20 oversold.

Technical Indicators

Stop Order

An order to buy above or sell below the current market price. Stop orders become market orders once the trigger price is reached.

Order Types

Stop-Limit Order

A two-part order that combines a stop trigger with a limit price. Once the stop price is hit, a limit order is placed instead of a market order.

Order Types

Stop-Loss

An order that automatically closes a position at a predetermined price to limit losses. The most important risk management tool in forex trading.

Order Types

Stop-Out Level

The margin level percentage at which a broker automatically begins closing your open positions to prevent further losses. Most regulated brokers set this at 20-50% margin level.

Risk Management

Swap

The overnight interest charge or credit applied when holding a forex position past the daily cut-off time. Swap rates reflect the interest rate difference between the two currencies.

Trading Mechanics

Symmetrical Triangle

A continuation pattern where converging trendlines connect lower highs and higher lows, creating a narrowing range. It typically breaks in the direction of the prior trend.

Chart Patterns

T

Take-Profit

An order that automatically closes a position at a predetermined price to lock in profit. It is the profit-side counterpart to a stop-loss.

Order Types

Three Black Crows

Three consecutive long red candles with progressively lower closes, each opening within the prior candle's body. It signals a strong bearish reversal or continuation.

Candlestick Patterns

Three White Soldiers

Three consecutive long green candles with progressively higher closes, each opening within the prior candle's body. It signals a strong bullish reversal or continuation.

Candlestick Patterns

Tick

The smallest possible price movement on a trading platform. In 5-decimal forex pricing, a tick is one pipette (0.00001 for most pairs, 0.001 for JPY pairs).

Trading Mechanics

Trailing Stop

A stop-loss that moves automatically in the direction of profit as the market moves in your favor. It locks in gains while staying a fixed distance from the current price.

Order Types

Triple Bottom

A bullish reversal pattern where the price tests the same support level three times, bouncing each time. The break above the resistance connecting the bounce highs confirms the pattern.

Chart Patterns

Triple Top

A bearish reversal pattern where the price reaches the same resistance level three times, failing each time. The break below the support connecting the pullback lows confirms the pattern.

Chart Patterns

Tweezer Bottom

A two-candle bullish reversal pattern where consecutive candles share the same or nearly the same low, showing that the price found support twice at a level.

Candlestick Patterns

Tweezer Top

A two-candle bearish reversal pattern where consecutive candles share the same or nearly the same high, showing that the price was rejected twice at a level.

Candlestick Patterns

Why Forex Terminology Matters

Forex trading has its own language. Knowing the difference between a Pip and a Pipette, or understanding how Margin relates to Leverage, directly affects your ability to manage risk and place trades correctly. Misunderstanding a single term can lead to position sizes that are too large, unexpected margin calls, or trades that behave differently than expected.

This glossary covers every term you will encounter as a retail forex trader, from basic concepts like Currency Pair and Spread to advanced topics like Swap rates and Slippage. Each definition includes practical examples using real currency pairs and numbers so you can see how the concept applies to actual trading.

How to Use This Glossary

You can browse terms by category using the filters above, or type directly into the search bar to find a specific term. Every definition includes a short summary visible on the index page, plus a detailed page with examples, calculations, and links to related terms. Where relevant, we link directly to our Pip Calculator, Position Size Calculator, Margin Calculator, and Profit/Loss Calculator so you can apply what you learn immediately.

If you are new to forex, start with the Trading Basics category. It covers the foundational terms like Lot, Leverage, Long, and Short that everything else builds on. From there, move to Order Types to understand how trades are placed, then explore Trading Mechanics for the details of how orders are filled and positions are managed.

Essential Forex Terms Every Trader Should Know

Among the most important concepts in forex are pips (the smallest price movement), lots (the standard unit of trade size), leverage (how brokers let you control large positions with small deposits), and margin (the deposit required to open a leveraged position). Understanding these four terms and how they interact is the foundation of forex trading. Our beginner guide walks through these concepts step by step if you prefer a structured approach.

Beyond the basics, order types like Stop-Loss and Take-Profit are essential for risk management, while terms like Rollover and Swap matter for anyone holding positions overnight. Bookmark this page and refer back whenever you encounter an unfamiliar term.

Frequently Asked Questions

What is a pip in forex trading?
A pip is the smallest standard price movement in a currency pair. For most pairs like EUR/USD, one pip equals 0.0001 (the fourth decimal place). For JPY pairs like USD/JPY, one pip equals 0.01. Pip values vary by pair and position size.
What is leverage in forex?
Leverage allows you to control a larger position with a smaller deposit. For example, 1:30 leverage means you can control $30,000 in currency with a $1,000 deposit. While leverage amplifies potential profits, it equally amplifies potential losses.
What is the spread in forex?
The spread is the difference between the bid (sell) price and the ask (buy) price of a currency pair. It represents the broker's primary cost to you for executing a trade. EUR/USD typically has the tightest spread, often 0.1 to 1.5 pips.
What does going long and short mean in forex?
Going long means buying a currency pair because you expect it to rise in value. Going short means selling a currency pair because you expect it to fall. In forex, you can profit from both rising and falling markets.
What is a lot size in forex?
A standard lot is 100,000 units of the base currency. A mini lot is 10,000 units, a micro lot is 1,000 units, and a nano lot is 100 units. Your lot size determines your pip value and overall position risk.
What is margin in forex trading?
Margin is the deposit required to open and maintain a leveraged position. It is not a fee. If you use 1:30 leverage, the margin requirement is 3.33% of the position size. A $100,000 position would require $3,333 in margin.
What is a stop-loss order?
A stop-loss is an order that automatically closes your position at a specified price to limit losses. For example, if you buy EUR/USD at 1.0850, you might set a stop-loss at 1.0820 to limit your loss to 30 pips per lot.
What is slippage in forex?
Slippage occurs when your order is filled at a different price than requested, usually during high volatility or low liquidity. Slippage can be positive (better price) or negative (worse price). It most commonly happens with market orders and stop orders.
What is a swap or rollover in forex?
A swap (or rollover) is the interest charged or earned for holding a position overnight. It reflects the interest rate difference between the two currencies in the pair. Positions held past the daily cut-off time (typically 5 PM New York) incur the swap.
What is the difference between major, minor, and exotic pairs?
Major pairs include the US dollar and are the most traded (EUR/USD, GBP/USD, USD/JPY). Minor pairs (or crosses) are pairs of major currencies without the US dollar (EUR/GBP, AUD/NZD). Exotic pairs combine a major currency with a developing economy currency (USD/TRY, EUR/ZAR).