Understanding trading indicator definitions useful for systematic traders so that you can choose the right trading indicator for the job.

This page provides clear, beginner-friendly explanations of the most important trading indicators, including ADX, ATR, Bollinger Bands, MACD, RSI, and more. If you are a new trader, understanding these indicators is a first step towards creating trading systems that work.

From Moving Average Crossovers to Fibonacci Retracements, mastering these trading indicator definitions will give you a solid foundation for building effective trading strategies.

Explore the definitions below to expand your knowledge of trading indicators and enhance your ability to choose the right technical analysis indicators for your trading systems.

Trading Indicator Definitions - Alphabetical Listing

What is the ADX Indicator? (Average Directional Index)

The Average Directional Index (ADX) measures the strength of a trend without indicating its direction. Values above 25 typically suggest a strong trend, while values below 20 indicate a weak or non-trending market.

What is the ATR Indicator? (Average True Range)

The Average True Range (ATR) measures market volatility by calculating the average range between high and low prices over a specific period. Higher ATR values indicate greater volatility, while lower values suggest a stable market.

What is the Bollinger Bands Indicator?

Bollinger Bands are volatility indicators plotted above and below a moving average. They widen during high volatility and contract during low volatility. Traders use them to identify overbought or oversold conditions and potential price reversals.

What are Candlestick Patterns in Trading?

Candlestick Patterns are chart formations used to predict market direction based on the open, high, low, and close prices within a specific timeframe. Popular patterns include Doji, Hammer, Engulfing, and Shooting Star.

What is a Fibonacci Retracement in Trading?

Fibonacci Retracement is a technical analysis tool that identifies potential support and resistance levels based on the Fibonacci sequence. Common retracement levels include 38.2%, 50%, and 61.8%, helping traders identify potential reversal points.

What is the Ichimoku Cloud Indicator?

The Ichimoku Cloud is a comprehensive indicator used to gauge momentum, trend direction, and support/resistance levels. It consists of five lines, with the cloud itself providing insight into future support and resistance areas.

What is the MACD Indicator? (Moving Average Convergence Divergence)

The Moving Average Convergence Divergence (MACD) is a trend-following momentum indicator that shows the relationship between two moving averages. Traders use MACD crossovers, divergence, and histogram analysis to spot potential buy and sell signals.

What are Momentum Oscillators?

Momentum Oscillators measure the speed and magnitude of price movements, helping traders identify overbought or oversold conditions. Common examples include RSI, Stochastic Oscillator, and MACD.

What is a Moving Average Crossover?

A Moving Average Crossover occurs when a shorter-term moving average crosses above or below a longer-term moving average. A bullish crossover signals a potential upward trend, while a bearish crossover suggests a downward trend.

What are Moving Averages (SMA, EMA)?

Moving Averages smooth out price data to identify trends over time. The Simple Moving Average (SMA) calculates the average price over a set period, while the Exponential Moving Average (EMA) gives more weight to recent prices, making it more responsive to changes.

What is On-Balance Volume (OBV)?

On-Balance Volume (OBV) is a volume-based indicator that measures cumulative buying and selling pressure. It helps traders identify trends and confirm price movements by comparing volume flow to price changes.

What is the Parabolic SAR Indicator?

The Parabolic SAR (Stop and Reverse) is a trend-following indicator used to identify potential reversal points. It appears as a series of dots above or below price bars, signaling whether traders should be long or short in the market.

What are Pivot Points in Trading?

Pivot Points are calculated price levels used to determine potential support and resistance areas. They help traders identify entry and exit points and are especially popular among day traders and swing traders.

What is the RSI Indicator? (Relative Strength Index)

The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. It ranges from 0 to 100, with readings above 70 indicating overbought conditions and below 30 indicating oversold conditions.

What is the Stochastic Oscillator?

The Stochastic Oscillator compares a security’s closing price to its price range over a specified period. It ranges from 0 to 100, with readings above 80 suggesting overbought conditions and below 20 indicating oversold conditions.

What is Volume Analysis?

Volume Analysis examines the trading volume of a security to confirm price trends and detect potential reversals. High volume during price increases suggests strength, while low volume during price moves may indicate weakness or potential reversals.

Stock Trading Definitions By Category:

Discover our complete listing of important stock trading definitions using the categories below. Within each catagory, each stock trading term is defined in simple terms to quickly and easily boost your understanding of these trading terms.

  1. Stock Market Definitions
  2. Risk Management Definitions
  3. Trading Strategy Definitions
  4. Technical Analysis Definitions
  5. Trading Indicator Definitions
  6. Quantitative Analysis & Backtesting Definitions
  7. Portfolio Management Definitions
  8. Order Execution Definitions
  9. Trading Mechanics & Tools
  10. Trading Psychology Definitions
  11. Cryptocurrency Trading Definitions
  12. Regulatory & Compliance Definitions

Each category links to a dedicated page providing clear, concise stock trading definitions for essential trading terms. Click on any category to dive deeper into the terminology of that area.

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Adrian Reid Founder and CEO
Adrian is a full-time private trader based in Australia and also the Founder and Trading Coach at Enlightened Stock Trading, which focuses on educating and supporting traders on their journey to profitable systems trading. Following his successful adoption of systematic trading which generated him hundreds of thousands of dollars a year using just 30 minutes a day to manage his system trading workflow, Adrian made the easy decision to leave his professional work in the corporate world in 2012. Adrian trades long/short across US, Australian and international stock markets and the cryptocurrency markets. His trading systems are now fully automated and have consistently outperformed international share markets with dramatically reduced risk over the past 20+ years. Adrian focuses on building portfolios of profitable, stable and robust long term trading systems to beat market returns with high risk adjusted returns. Adrian teaches traders from all over the world how to get profitable, confident and consistent by trading systematically and backtesting their own trading systems. He helps profitable traders grow and smooth returns by implementing a portfolio of trading systems to make money from different markets and market conditions.