Trading Education
Master the Language of
Algorithmic Trading
A comprehensive guide to 120 essential terms used in quantitative finance, machine learning, and crypto markets.
+ 11 More Categories
Trading Basics
16 Terms
Bid Price
The highest price a buyer is willing to pay for an asset. In order books, this represents demand.
Related Concepts:
Ask Price
Spread
Order Book
Ask Price
The lowest price a seller is willing to accept for an asset. In order books, this represents supply.
Related Concepts:
Bid Price
Spread
Market Order
Spread
The difference between the bid and ask price. A tighter spread indicates higher liquidity.
Related Concepts:
Bid Price
Ask Price
Liquidity
Volume
The total amount of an asset traded over a specific period. High volume indicates strong market interest.
Related Concepts:
Liquidity
Market Depth
Liquidity
The ease with which an asset can be bought or sold without significantly affecting its price. Higher liquidity means tighter spreads and better execution.
Related Concepts:
Spread
Volume
Order Book
Market Order
An order to buy or sell immediately at the current best available price. Guarantees execution but not price.
Related Concepts:
Limit Order
Stop Order
Ask Price
Limit Order
An order to buy or sell at a specific price or better. Guarantees price but not execution.
Related Concepts:
Market Order
Stop Limit Order
Stop Loss
An order to automatically sell an asset when it reaches a specified price, limiting potential losses. Essential for risk management.
Related Concepts:
Take Profit
Trailing Stop
Risk Management
Take Profit
An order to automatically sell an asset when it reaches a specified profit target, securing gains.
Related Concepts:
Stop Loss
Limit Order
Position
The amount of an asset you currently own (long position) or have borrowed and sold (short position).
Related Concepts:
Long
Short
Portfolio
Long Position
Buying an asset with the expectation that its price will rise. Profit when price increases.
Related Concepts:
Short Position
Bull Market
Short Position
Selling an asset you don't own (borrowing it) with the expectation that its price will fall. Profit when price decreases.
Related Concepts:
Long Position
Bear Market
Margin
Bull Market
A market condition where prices are rising or expected to rise. Characterized by optimism and increasing demand.
Related Concepts:
Bear Market
Long Position
Trend
Bear Market
A market condition where prices are falling or expected to fall. Characterized by pessimism and selling pressure.
Related Concepts:
Bull Market
Short Position
Downtrend
Candlestick
A chart representation showing open, high, low, and close prices for a specific time period. Green/white indicates price increase; red/black indicates decrease.
Related Concepts:
OHLC
Chart Patterns
OHLC
Open, High, Low, Close. The four key price points for any trading period, used in candlestick and bar charts.
Related Concepts:
Candlestick
Volume
Technical Analysis
16 Terms
RSI (Relative Strength Index)
A momentum indicator that measures the speed and magnitude of price changes. Values range from 0-100, with above 70 indicating overbought and below 30 indicating oversold conditions.
Related Concepts:
MACD
Momentum
Overbought/Oversold
MACD (Moving Average Convergence Divergence)
A trend-following momentum indicator showing the relationship between two moving averages. Consists of MACD line, signal line, and histogram.
Related Concepts:
RSI
Moving Average
Momentum
Bollinger Bands
Volatility bands placed above and below a moving average. Price touching upper band suggests overbought; touching lower band suggests oversold.
Related Concepts:
Volatility
Moving Average
Standard Deviation
Moving Average (MA)
The average price of an asset over a specified number of periods, smoothing out price fluctuations to identify trends.
Related Concepts:
EMA
SMA
Trend
EMA (Exponential Moving Average)
A moving average that gives more weight to recent prices, making it more responsive to new information than simple moving averages.
Related Concepts:
SMA
Moving Average
MACD
SMA (Simple Moving Average)
A moving average calculated by averaging prices over a specific period with equal weight for all values.
Related Concepts:
EMA
Moving Average
Support Level
A price level where an asset tends to find buying interest, preventing the price from falling further.
Related Concepts:
Resistance Level
Trend Line
Breakout
Resistance Level
A price level where an asset tends to find selling pressure, preventing the price from rising further.
Related Concepts:
Support Level
Trend Line
Breakdown
Breakout
When price moves above a resistance level or below a support level, often signaling the start of a new trend.
Related Concepts:
Breakdown
Support Level
Resistance Level
Fibonacci Retracement
Horizontal lines indicating potential support and resistance levels based on Fibonacci ratios (23.6%, 38.2%, 50%, 61.8%, 78.6%).
Related Concepts:
Support Level
Resistance Level
Momentum
The rate of acceleration of price changes. High momentum indicates strong trend; low momentum suggests consolidation.
Related Concepts:
RSI
MACD
Trend
Overbought
A condition where an asset has been bought excessively and may be due for a price correction or reversal. Often indicated by RSI above 70.
Related Concepts:
Oversold
RSI
Reversal
Oversold
A condition where an asset has been sold excessively and may be due for a price bounce. Often indicated by RSI below 30.
Related Concepts:
Overbought
RSI
Reversal
Trend
The general direction of market price movement: uptrend (higher highs and higher lows), downtrend (lower highs and lower lows), or sideways (consolidation).
Related Concepts:
Uptrend
Downtrend
Moving Average
Trend Line
A straight line connecting price points to identify the direction and strength of a trend.
Related Concepts:
Support Level
Resistance Level
Trend
Volume Profile
A charting study that displays trading activity over specified price levels, showing where the most volume was traded.
Related Concepts:
Volume
Support Level
Resistance Level
Risk Management
10 Terms
Leverage
Borrowed capital used to increase trading position size. For example, 10x leverage means controlling $10,000 with $1,000. Amplifies both profits AND losses.
Related Concepts:
Margin
Liquidation
Margin Call
Margin
The amount of capital required to open and maintain a leveraged position. Acts as collateral for borrowed funds.
Related Concepts:
Leverage
Margin Call
Liquidation
Liquidation
Forced closure of a leveraged position when margin falls below required maintenance level. Results in loss of collateral.
Related Concepts:
Leverage
Margin
Margin Call
Liquidation Price
The price level at which a leveraged position will be automatically liquidated to prevent further losses.
Related Concepts:
Liquidation
Leverage
Stop Loss
Margin Call
A demand from a broker to deposit additional funds or securities to meet minimum margin requirements.
Related Concepts:
Margin
Leverage
Liquidation
Risk-Reward Ratio
The ratio of potential profit to potential loss in a trade. A 3:1 ratio means risking $1 to potentially gain $3.
Related Concepts:
Stop Loss
Take Profit
Position Sizing
Position Sizing
Determining how much capital to allocate to a single trade based on risk tolerance and account size.
Related Concepts:
Risk Management
Portfolio Diversification
Portfolio Diversification
Spreading investments across different assets to reduce overall risk. Don't put all eggs in one basket.
Related Concepts:
Position Sizing
Risk Management
Drawdown
The peak-to-trough decline in portfolio value. Maximum drawdown is the largest drop from a high to subsequent low.
Related Concepts:
Risk Management
Volatility
Trailing Stop
A dynamic stop loss that moves with price to lock in profits. If price moves favorably, the stop follows; if price reverses, the stop stays.
Related Concepts:
Stop Loss
Take Profit
Order Types
5 Terms
Stop Order
An order that becomes a market order once a specified price (stop price) is reached. Used for entering or exiting positions.
Related Concepts:
Stop Limit Order
Market Order
Stop Limit Order
An order that becomes a limit order once the stop price is reached. Combines stop order and limit order features.
Related Concepts:
Stop Order
Limit Order
Fill or Kill (FOK)
An order that must be executed immediately in its entirety or canceled completely. No partial fills allowed.
Related Concepts:
Immediate or Cancel
Limit Order
Immediate or Cancel (IOC)
An order that must be executed immediately. Any portion that cannot be filled is canceled.
Related Concepts:
Fill or Kill
Market Order
Good 'Til Canceled (GTC)
An order that remains active until it's either executed or manually canceled by the trader.
Related Concepts:
Limit Order
Stop Order
Derivatives & Futures
6 Terms
Futures Contract
An agreement to buy or sell an asset at a predetermined price at a specified future date. Standardized and traded on exchanges.
Related Concepts:
Perpetual Futures
Settlement
Funding Rate
Perpetual Futures
Futures contracts without expiration date. Price is kept close to spot through funding rate mechanism.
Related Concepts:
Futures Contract
Funding Rate
Mark Price
Funding Rate
Periodic payment between long and short traders in perpetual futures to keep contract price aligned with spot price.
Related Concepts:
Perpetual Futures
Long Position
Short Position
Mark Price
The fair value price of a futures contract, used to prevent unfair liquidations during price manipulation. Calculated from spot index and funding rate.
Related Concepts:
Perpetual Futures
Liquidation Price
Open Interest
The total number of outstanding futures contracts that have not been settled. Indicates market participation and liquidity.
Related Concepts:
Futures Contract
Volume
Settlement
The process of fulfilling the terms of a futures contract at expiration, either through cash payment or physical delivery.
Related Concepts:
Futures Contract
Expiration
ML & AI Trading
10 Terms
Feature Engineering
The process of creating relevant input variables (features) for machine learning models from raw data. Critical for model performance.
Related Concepts:
Machine Learning
Model Training
Technical Indicators
Backtesting
Testing a trading strategy using historical data to evaluate its potential performance before risking real capital.
Related Concepts:
Walk-Forward Analysis
Paper Trading
Strategy Validation
Walk-Forward Analysis
A backtesting method that repeatedly trains models on past data and tests on subsequent unseen data, simulating real-world conditions.
Related Concepts:
Backtesting
Cross-Validation
Model Training
Model Confidence
A measure of how certain an ML model is about its prediction. Higher confidence typically indicates more reliable signals.
Related Concepts:
Prediction Signal
Machine Learning
Confidence Score
Prediction Signal
An output from an ML model indicating expected price movement: BUY, SELL, or HOLD, often with confidence score.
Related Concepts:
Model Confidence
Trading Signal
ML Prediction
Overfitting
When an ML model learns noise and patterns specific to training data, performing poorly on new data. A major pitfall in algo trading.
Related Concepts:
Cross-Validation
Walk-Forward Analysis
Model Training
Cross-Validation
A technique to assess model performance by training on different data subsets and testing on held-out portions.
Related Concepts:
Walk-Forward Analysis
Overfitting
Model Training
Ensemble Model
A machine learning approach that combines multiple models to achieve better prediction accuracy than any single model.
Related Concepts:
Machine Learning
Model Confidence
Random Forest
Feature Selection
The process of identifying the most relevant features for ML models, reducing noise and improving performance. Uses techniques like SHAP values.
Related Concepts:
Feature Engineering
SHAP Values
Correlation Pruning
SHAP Values
A method to explain ML model predictions by assigning importance scores to each feature. Helps identify which factors drive predictions.
Related Concepts:
Feature Selection
Feature Importance
Model Explainability
Macro-Financial
12 Terms
DXY (Dollar Index)
A measure of the U.S. dollar's value against a basket of foreign currencies (EUR, JPY, GBP, CAD, SEK, CHF). Rising DXY often correlates with falling crypto prices.
Related Concepts:
Correlation
Macro Analysis
VIX (Volatility Index)
The 'fear index' measuring expected stock market volatility. High VIX indicates market stress and often correlates with crypto volatility.
Related Concepts:
Volatility
S&P 500
Risk-Off
Treasury Yields
The return on U.S. government bonds. Rising yields often pressure risk assets like crypto as safer alternatives become more attractive.
Related Concepts:
Interest Rates
Risk-Off
Bond Market
Correlation
Statistical measure of how two assets move together. Values range from -1 (perfect inverse) to +1 (perfect positive). Crypto often correlates with NASDAQ.
Related Concepts:
Time-Varying Correlation
Macro Analysis
NASDAQ
Time-Varying Correlation
Correlation between assets that changes over time. TradingMaster AI tracks rolling correlations between crypto and macro assets.
Related Concepts:
Correlation
Rolling Window
Regime Detection
Volatility Spillover
When volatility in one market (e.g., stocks) transmits to another market (e.g., crypto). Measured using GARCH models.
Related Concepts:
Volatility
GARCH
Correlation
Regime Detection
Identifying distinct market states (bull, bear, high-vol, low-vol) using statistical methods like Hidden Markov Models.
Related Concepts:
Bull Market
Bear Market
HMM
GARCH Model
Generalized Autoregressive Conditional Heteroskedasticity. A statistical model for predicting volatility that clusters (high volatility periods follow high volatility).
Related Concepts:
Volatility Spillover
Volatility Clustering
Granger Causality
A statistical test to determine if one time series can predict another. Example: Does NASDAQ predict BTC movements?
Related Concepts:
Correlation
Leading Indicator
Macro Analysis
Cointegration
Long-run equilibrium relationship between assets. Pairs trading exploits temporary deviations from this equilibrium.
Related Concepts:
Pairs Trading
Mean Reversion
Error Correction Model
NASDAQ Composite
U.S. stock market index weighted toward technology companies. Highly correlated with Bitcoin and crypto markets.
Related Concepts:
S&P 500
Correlation
Tech Stocks
S&P 500
U.S. stock market index of 500 large companies. A key indicator of overall market health and risk appetite.
Related Concepts:
NASDAQ
VIX
Risk-On/Risk-Off
Blockchain & Crypto
6 Terms
Altcoin
Any cryptocurrency other than Bitcoin. Includes Ethereum, Solana, and thousands of other tokens.
Related Concepts:
Bitcoin
Cryptocurrency
Market Cap
Total value of a cryptocurrency calculated by multiplying circulating supply by current price. Indicates relative size and dominance.
Related Concepts:
Circulating Supply
Dominance
Stablecoin
Cryptocurrency designed to maintain stable value by pegging to assets like USD (USDT, USDC). Used as trading base currency.
Related Concepts:
USDT
USDC
Cryptocurrency
Trading Pair
Two assets that can be traded against each other, e.g., BTC/USDT means trading Bitcoin for Tether.
Related Concepts:
Base Currency
Quote Currency
Symbol
Gas Fees
Transaction fees paid to blockchain validators for processing transactions. Higher on congested networks.
Related Concepts:
Blockchain
Network Congestion
On-Chain Data
Data recorded directly on the blockchain: transactions, wallet balances, network activity. Used for fundamental crypto analysis.
Related Concepts:
Blockchain
Wallet
Network Activity
Market Structure
7 Terms
Order Book
A real-time list of buy (bid) and sell (ask) orders arranged by price level. Shows market depth and supply/demand.
Related Concepts:
Bid Price
Ask Price
Market Depth
Market Depth
The measure of liquidity in the order book. Deeper markets can absorb large orders without significant price impact.
Related Concepts:
Order Book
Liquidity
Slippage
Slippage
The difference between expected trade price and actual execution price. Higher in illiquid markets or with large orders.
Related Concepts:
Market Depth
Liquidity
Market Order
Maker
A trader who adds liquidity to the order book by placing limit orders. Typically pays lower fees than takers.
Related Concepts:
Taker
Limit Order
Liquidity
Taker
A trader who removes liquidity from the order book by executing market orders against existing limit orders. Typically pays higher fees than makers.
Related Concepts:
Maker
Market Order
Liquidity
Spot Trading
Trading actual assets with immediate delivery. You own the asset outright without leverage or borrowing.
Related Concepts:
Margin Trading
Futures Trading
Margin Trading
Trading with borrowed funds to increase position size. Allows both long and short positions with leverage.
Related Concepts:
Leverage
Liquidation
Spot Trading
Trading Strategies
10 Terms
Day Trading
Opening and closing positions within the same trading day to profit from intraday price movements.
Related Concepts:
Swing Trading
Scalping
Swing Trading
Holding positions for several days to weeks to profit from medium-term price swings.
Related Concepts:
Day Trading
Position Trading
Scalping
Very short-term trading strategy making numerous small profits from tiny price movements, often holding positions for seconds to minutes.
Related Concepts:
Day Trading
High-Frequency Trading
Position Trading
Long-term trading strategy holding positions for months to years based on fundamental analysis.
Related Concepts:
Swing Trading
Fundamental Analysis
Arbitrage
Simultaneously buying and selling the same asset in different markets to profit from price discrepancies.
Related Concepts:
Market Efficiency
Spread
Pairs Trading
Trading two correlated assets: going long one and short the other when their price relationship deviates from equilibrium.
Related Concepts:
Cointegration
Mean Reversion
Statistical Arbitrage
Mean Reversion
A strategy assuming prices will return to their historical average. Buy when undervalued, sell when overvalued.
Related Concepts:
Pairs Trading
Bollinger Bands
RSI
Trend Following
A strategy that attempts to capture gains by riding established trends. 'The trend is your friend.'
Related Concepts:
Momentum
Moving Average
Breakout
Grid Trading
Placing multiple buy and sell orders at regular price intervals, profiting from price oscillations within a range.
Related Concepts:
Range Trading
Market Making
DCA (Dollar Cost Averaging)
Investing a fixed amount at regular intervals regardless of price, reducing the impact of volatility.
Related Concepts:
Position Sizing
Risk Management
Performance Metrics
7 Terms
ROI (Return on Investment)
Percentage gain or loss on investment. Calculated as (Current Value - Initial Investment) / Initial Investment × 100%.
Related Concepts:
PnL
Profit Percentage
PnL (Profit and Loss)
The actual gain or loss from a trade or portfolio. Can be realized (closed positions) or unrealized (open positions).
Related Concepts:
ROI
Realized PnL
Unrealized PnL
Realized PnL
Profit or loss from closed positions. Actual gains/losses that are locked in.
Related Concepts:
PnL
Unrealized PnL
Unrealized PnL
Profit or loss from open positions based on current market price. Also called 'paper profit/loss.'
Related Concepts:
PnL
Realized PnL
Mark-to-Market
Sharpe Ratio
Risk-adjusted return metric. Measures excess return per unit of risk. Higher is better. Above 1.0 is good; above 2.0 is excellent.
Related Concepts:
Risk-Adjusted Return
Volatility
Performance
Win Rate
Percentage of profitable trades out of total trades. A 60% win rate means 60% of trades were profitable.
Related Concepts:
Profit Factor
Performance Metrics
Profit Factor
Ratio of gross profit to gross loss. Above 1.0 means profitable system. A value of 2.0 means profits are twice the losses.
Related Concepts:
Win Rate
ROI
Performance Metrics
Advanced Concepts
5 Terms
Impulse Response Function (IRF)
Measures how one asset responds over time to a shock in another asset. Used in causality analysis to quantify macro impact on crypto.
Related Concepts:
Granger Causality
VAR Model
Macro Analysis
VAR Model (Vector Autoregression)
A statistical model capturing relationships between multiple time series. Used to model crypto-macro interactions.
Related Concepts:
Granger Causality
IRF
Time Series Analysis
Error Correction Model (ECM)
A model that captures short-term dynamics and long-term equilibrium relationships between cointegrated assets.
Related Concepts:
Cointegration
Pairs Trading
Mean Reversion
Network Centrality
Measure of an asset's importance in a correlation network. High centrality assets influence many others.
Related Concepts:
Correlation Network
Systemic Risk
Hidden Markov Model (HMM)
A statistical model for regime detection, identifying hidden market states (bull, bear, high-vol) from observable price data.
Related Concepts:
Regime Detection
Market States
Trading Tools
6 Terms
Paper Trading
Simulated trading with virtual money to test strategies without financial risk. Essential for strategy validation.
Related Concepts:
Backtesting
Live Trading
Risk-Free Testing
Live Trading
Trading with real money on actual exchanges. Requires API keys and carries financial risk.
Related Concepts:
Paper Trading
API Keys
Exchange Integration
API Keys
Authentication credentials for programmatic access to exchange trading and data. Must be kept secure and encrypted.
Related Concepts:
Exchange Integration
Security
Trading Bot
Trading Bot
Automated software that executes trades based on predefined rules or ML predictions. Operates 24/7 without emotions.
Related Concepts:
Algorithmic Trading
Automation
Trading Signal
Webhook
HTTP callback that sends real-time data to your application. Used for TradingView signals and exchange notifications.
Related Concepts:
API
TradingView
Real-Time Data
TradingView
Popular charting and analysis platform. TradingMaster AI integrates TradingView charts and can receive webhook signals.
Related Concepts:
Webhook
Charting
Technical Analysis
Market Sentiment
1 Terms
Risk-On/Risk-Off
Market sentiment indicator. Risk-on: investors favor risky assets (crypto, stocks). Risk-off: investors prefer safe havens (bonds, gold).
Related Concepts:
VIX
Treasury Yields
Market Sentiment
Trading Psychology
2 Terms
FOMO (Fear of Missing Out)
Emotional trading driven by fear of missing profits. Often leads to buying near tops. Dangerous trading psychology.
Related Concepts:
FUD
Trading Psychology
Emotional Trading
FUD (Fear, Uncertainty, Doubt)
Negative sentiment or misinformation spread to drive prices down. Can create buying opportunities for contrarian traders.
Related Concepts:
FOMO
Market Sentiment
Crypto Culture
1 Terms
Hodl
Crypto slang for holding an asset long-term regardless of price fluctuations. Originated from a misspelled 'hold.'
Related Concepts:
Long Position
Position Trading
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