Trading and AI Market Terms Explained

Algorithm

A defined set of rules or steps a computer follows to complete a task. In trading, algorithms range from simple screening filters to sequences that place or manage orders according to pre-set conditions.

Example. an algorithm could be written to flag any instrument that moves more than a set percentage within an hour.

Common misunderstanding. that an algorithm is inherently ‘smart’. It only does exactly what its rules specify, including any flawed assumptions.

Related risk. rigid rules can behave unpredictably in unusual market conditions they were never designed for.

Related terms: Artificial Intelligence, Execution, Backtesting · See how AI is used in trading.

Artificial Intelligence

Software designed to perform tasks usually associated with human intelligence, such as recognising patterns across very large datasets, classifying information and flagging unusual activity. In markets, AI is used to organise and interpret data at a scale no person could match, but it does not know the future.

Example. an AI model might scan thousands of price series and news headlines to highlight instruments behaving unusually, leaving the trader to decide what, if anything, to do.

Common misunderstanding. that AI can reliably predict where a price will go. It identifies patterns in past data; markets change and those patterns can break.

Related risk. over-trusting an automated output can lead to decisions that ignore context, liquidity or your own risk limits.

Related terms: Algorithm, Pattern Recognition, Data Model, Signal · See how AI is used in trading.

Ask Price

The lowest price a seller is currently willing to accept for an instrument. The gap between the ask and the bid is the spread.

Asset Class

A group of instruments with similar characteristics, such as equities, currencies, commodities or digital assets.

Backtesting

Applying a strategy to historical data to see how it would have performed in the past. It is a research tool for understanding a rule set, not a promise about the future.

Example. testing a moving-average rule across several years of data to study how often it would have signalled and how large the swings were.

Common misunderstanding. that a strong backtest means a strategy will work going forward. Results are easily ‘overfitted’ to past data.

Related risk. relying on backtests can create false confidence; real execution involves spread, slippage and changing conditions.

Related terms: Data Model, Drawdown, Technical Analysis · See market signals.

Bear Market

A market experiencing sustained falling prices and generally negative sentiment.

Bid Price

The highest price a buyer is currently willing to pay for an instrument.

Breakout

When price moves beyond a defined level of support or resistance, sometimes signalling a new move. Breakouts can also fail.

Broker

A firm or intermediary that provides access to markets or instruments, typically executing or routing orders on a client’s behalf. Brokers differ widely in the instruments they offer, their fees and the terms that govern deposits and withdrawals.

Example. a trader places an order through a broker, which then routes it to a venue or fills it under its own terms.

Common misunderstanding. that all brokers operate identically. Costs, execution quality and regulatory status vary significantly.

Related risk. the specific service terms, spreads and provider conditions materially affect outcomes and should be read carefully.

Related terms: Execution, Spread, Liquidity, Leverage · See the Mallee Capitholm platform.

Bull Market

A market experiencing sustained rising prices and generally positive sentiment.

Candlestick

A chart element showing the open, high, low and close for a period, widely used in technical analysis.

CFD

A contract for difference is an agreement to exchange the difference in an instrument’s price between opening and closing a position, without owning the underlying asset. CFDs are commonly leveraged.

Example. instead of buying an asset outright, a trader opens a CFD to gain exposure to its price movement.

Common misunderstanding. that CFDs are the same as owning the asset. They are contracts with their own costs, financing and provider terms.

Related risk. because CFDs are typically leveraged, losses can exceed the amount initially committed. They are complex and carry a high risk of loss.

Related terms: Leverage, Margin, Exposure, Position Size · See trading risk management.

Commodity

A basic physical good such as oil, gold or agricultural products, traded as an asset class.

Correlation

A measure of how two instruments tend to move in relation to each other. Positive correlation means they often move together; negative means they tend to move in opposite directions; near-zero means little consistent relationship.

Example. two currencies driven by the same economic factor may show strong positive correlation over a period.

Common misunderstanding. that correlation is fixed. Relationships shift over time and can break during stress.

Related risk. holding several highly correlated positions can concentrate exposure even when it looks diversified.

Related terms: Diversification, Exposure, Market Sentiment · See crypto market analysis.

Cryptocurrency

A digital asset that uses cryptography and typically operates on a decentralised network. Prices can be highly volatile and markets often trade continuously.

Example. a digital asset may move sharply within hours in response to sentiment, liquidity or regulatory news.

Common misunderstanding. that a well-known token is therefore ‘safe’ or expected to rise. No asset is expected to increase in value.

Related risk. high volatility, custody and security considerations, and evolving regulation can all lead to significant capital loss.

Related terms: Volatility, Liquidity, Market Capitalisation · See crypto market analysis.

Data Model

A structured representation used to organise and interpret information. Model quality depends on the data behind it.

Diversification

Spreading capital across different instruments to reduce the impact of any single one. Its protection is limited during broad market stress.

Drawdown

The decline from a peak to a subsequent low in an account or strategy, usually expressed as a percentage. It describes how deep a losing stretch has been.

Example. if an account falls from 10,000 to 8,000 before recovering, that is a 20% drawdown.

Common misunderstanding. that recovering a percentage equal to the drawdown restores the balance. A 20% loss requires a 25% gain to break even.

Related risk. large drawdowns are difficult to recover from and can pressure emotional decision-making.

Related terms: Risk Management, Position Size, Volatility · See trading risk management.

Economic Calendar

A schedule of upcoming economic releases and events that can move markets, central to forex analysis.

Entry Price

The price at which a position is opened.

Execution

The process of an order actually being filled in the market. The price achieved can differ from the price expected, especially in fast-moving or thin conditions.

Example. an order placed during a news release may fill at a different level than the one shown a moment earlier.

Common misunderstanding. that the displayed price is guaranteed. Execution depends on available liquidity and provider terms.

Related risk. slippage during execution can widen losses beyond what a stop level implied.

Related terms: Slippage, Liquidity, Spread, Market Order · See market signals.

Exposure

The amount of capital effectively at risk in a position or across a portfolio. Leverage can make exposure much larger than the funds committed.

Example. a small deposit controlling a large leveraged position carries exposure far greater than the deposit itself.

Common misunderstanding. that exposure equals the money you put in. With leverage, true exposure is often multiples of that.

Related risk. underestimating exposure is a common route to losses that exceed expectations.

Related terms: Leverage, Margin, Position Size, Diversification · See trading risk management.

Forex

The foreign exchange market, where currencies are traded in pairs. It is highly liquid and operates across global sessions for much of the week.

Example. trading a currency pair expresses a view on one currency relative to another, not in isolation.

Common misunderstanding. that exchange-rate moves are predictable. They respond to many interacting factors and cannot be forecast reliably.

Related risk. leverage is common in forex and can amplify both gains and losses.

Related terms: Leverage, Liquidity, Economic Calendar, Spread · See forex market analysis.

Fundamental Analysis

Assessing an instrument’s value using underlying factors such as economic data, interest rates, company performance or broader conditions, rather than price patterns alone.

Example. weighing an interest-rate decision and inflation data when forming a view on a currency.

Common misunderstanding. that fundamentals move prices immediately or predictably. Markets can react in unexpected ways and timings.

Related risk. acting on fundamentals without risk controls exposes a position to sharp, unexpected moves.

Related terms: Economic Calendar, Market Sentiment, Technical Analysis · See forex market analysis.

Index

A measure tracking the combined performance of a group of instruments, used to gauge overall market direction.

Indicator

A calculation derived from price, volume or other data, used to summarise a market characteristic such as momentum or trend. Indicators describe conditions; they do not guarantee outcomes.

Example. a momentum indicator may suggest a move is strong, but says nothing certain about what happens next.

Common misunderstanding. that a single indicator produces reliable buy or sell decisions on its own.

Related risk. over-reliance on one indicator, especially a lagging one, can lead to poorly timed decisions.

Related terms: Momentum, Moving Average, Signal, Trend · See market signals.

Leverage

Using borrowed capital or a margin arrangement to control a larger position than your own funds would allow. Leverage magnifies both gains and losses.

Example. with leverage, a small price move against a position can represent a large percentage of the capital committed.

Common misunderstanding. that leverage simply increases potential profit. It increases risk in equal measure.

Related risk. with leverage, losses can exceed the amount initially deposited, particularly in volatile markets.

Related terms: Margin, Exposure, Position Size, CFD · See trading risk management.

Limit Order

An instruction to trade only at a specified price or better.

Liquidity

How easily an instrument can be bought or sold without significantly moving its price. Liquid markets tend to have tighter spreads; thin markets can move sharply.

Example. a widely traded currency pair is usually easy to enter and exit; a thinly traded asset may not be.

Common misunderstanding. that a market is always liquid. Liquidity can fall quickly around news or off-hours.

Related risk. low liquidity increases slippage and can make it hard to exit at the price expected.

Related terms: Slippage, Spread, Volatility, Execution · See market volatility.

Long Position

A position that benefits if the price of an instrument rises.

Margin

The funds required to open and maintain a leveraged position. If a position moves against you, additional margin may be required or the position may be closed.

Example. a broker may require a percentage of a position’s value to be held as margin.

Common misunderstanding. that margin is a fee. It is collateral, and falling below requirements can trigger forced closure.

Related risk. a margin call can crystallise losses at an inopportune time.

Related terms: Leverage, Exposure, CFD, Position Size · See trading risk management.

Market Capitalisation

An asset’s price multiplied by its available supply, giving a rough sense of relative size.

Market Order

An instruction to trade immediately at the best currently available price.

Market Sentiment

The overall attitude of market participants toward an instrument or market, ranging from optimistic to fearful. Sentiment can drive short-term moves that fundamentals alone don’t explain.

Example. strong negative sentiment can push prices lower even when underlying data is unchanged.

Common misunderstanding. that sentiment is a precise, tradable signal. It is a general condition, not a guarantee.

Related risk. crowd-driven moves can reverse quickly, trapping late entries.

Related terms: Volatility, Momentum, Correlation · See ai market analysis.

Momentum

The rate at which a price is moving in a given direction. Momentum tools try to describe whether a move is strengthening or fading.

Example. a momentum reading might show that an up-move is losing pace, hinting at a possible pause.

Common misunderstanding. that strong momentum will continue. Momentum can stall or reverse without warning.

Related risk. chasing momentum late often means entering just before a reversal.

Related terms: Trend, Indicator, Moving Average · See market signals.

Moving Average

An indicator that smooths price over a period to show its general direction, commonly used in technical analysis.

Pattern Recognition

Identifying recurring structures in data, such as price formations or repeated behaviours. AI can scan for patterns far faster than a person, but a pattern is not a prediction.

Example. a model might flag a shape that has often preceded larger moves, for a human to review.

Common misunderstanding. that a recognised pattern will ‘complete’ as expected. Many do not.

Related risk. acting on patterns without confirmation or risk controls can lead to repeated small losses.

Related terms: Artificial Intelligence, Signal, Technical Analysis · See how AI is used in trading.

Position Size

How much of an instrument you hold in a given trade. Position sizing is a core risk decision, linking the money you are willing to risk to the distance to your stop.

Example. risking a fixed small percentage of an account determines how large a position can be for a given stop distance.

Common misunderstanding. that a bigger position simply means bigger profit. It also means proportionally bigger loss.

Related risk. oversized positions are a leading cause of severe drawdowns.

Related terms: Risk Management, Stop-Loss, Exposure, Leverage · See the risk and position-size calculator.

Resistance

A price level where selling interest has previously slowed or reversed an advance.

Risk Management

The practice of controlling potential losses through tools such as position sizing, stop levels, diversification and clear limits. It aims to keep any single decision from being decisive.

Example. deciding in advance the maximum you will risk on a trade, and sizing the position accordingly.

Common misunderstanding. that risk management is about avoiding losses entirely. It is about keeping losses survivable.

Related risk. without risk controls, a single adverse move can cause disproportionate damage.

Related terms: Position Size, Stop-Loss, Drawdown, Exposure · See trading risk management.

Risk Tolerance

The level of risk an individual is willing and able to accept, based on their situation, goals and temperament.

Short Position

A position that benefits if the price of an instrument falls.

Signal

An indication, derived from data or analysis, that may support a decision. A signal is an input to a process, not an instruction or a guarantee.

Example. a combination of trend and momentum conditions might be organised into a single signal for review.

Common misunderstanding. that a signal tells you what will happen. It reflects past and present conditions only.

Related risk. treating signals as certainties, and skipping confirmation or risk limits, invites avoidable losses.

Related terms: Indicator, Pattern Recognition, Market Sentiment · See market signals.

Slippage

The difference between the price you expected and the price at which an order is actually filled. It is more common in fast or thin markets.

Example. a stop intended at one level may execute at a worse level during a rapid move.

Common misunderstanding. that stops always fill at the exact level set. Slippage can push fills beyond it.

Related risk. slippage can make realised losses larger than a stop level suggested.

Related terms: Execution, Liquidity, Volatility, Spread · See market volatility.

Spread

The gap between the bid (sell) and ask (buy) prices. It is an immediate cost of entering a position and tends to widen when liquidity falls.

Example. a wider spread means a position must move further just to reach break-even.

Common misunderstanding. that the spread is fixed. It varies with liquidity and conditions.

Related risk. wide spreads around news or off-hours can quietly increase trading costs.

Related terms: Bid Price, Ask Price, Liquidity, Execution · See forex market analysis.

Stop-Loss

An order intended to close a position once it reaches a set adverse level, used to cap the loss on a trade. It is a core risk-control tool but is not guaranteed to fill at the exact level.

Example. placing a stop a defined distance from entry limits how much a single trade can lose in normal conditions.

Common misunderstanding. that a stop guarantees the exit price. Slippage can cause a worse fill.

Related risk. stops set too tight can be triggered by normal noise; too wide, they permit larger losses.

Related terms: Position Size, Slippage, Risk Management · See trading risk management.

Support

A price level where buying interest has previously slowed or reversed a decline.

Technical Analysis

Studying price and volume history, often with charts and indicators, to describe current conditions and possible scenarios. It focuses on how a market is behaving rather than why.

Example. reviewing support, resistance and trend to frame where risk sits on a chart.

Common misunderstanding. that chart reading predicts the future. It describes probabilities and conditions, not certainties.

Related risk. acting on technical setups without risk limits leaves positions exposed to sudden reversals.

Related terms: Support, Resistance, Trend, Indicator · See market signals.

Timeframe

The period a chart or analysis covers. The same instrument can show different signals across different timeframes.

Trend

The general direction in which a market has been moving over a chosen timeframe: upward, downward or sideways. Trends can persist, but they also end.

Example. a series of higher highs and higher lows describes an uptrend on that timeframe.

Common misunderstanding. that an existing trend will continue. Trends change, sometimes abruptly.

Related risk. assuming a trend is permanent can lead to holding positions well past a reversal.

Related terms: Momentum, Moving Average, Timeframe · See market signals.

Volatility

The degree and speed of price movement over a period. Higher volatility means larger, faster swings in both directions.

Example. during major news, a market may cover a normal day’s range in minutes.

Common misunderstanding. that volatility means opportunity. It equally means larger potential losses.

Related risk. volatility widens spreads and slippage and can quickly exceed a trader’s risk limits.

Related terms: Liquidity, Slippage, Risk Management · See market volatility.

Volume

The amount of an instrument traded over a period. Volume is often used to gauge participation behind a price move.

Example. a breakout on high volume is often seen as more meaningful than one on thin volume.

Common misunderstanding. that high volume confirms a move will continue. It reflects activity, not destiny.

Related risk. reading too much into volume alone can lead to false confidence in a signal.

Related terms: Liquidity, Breakout, Signal · See market signals.