FAQ: Technical Indicators
This page is a practical FAQ about types of technical indicators — how to understand them, what they are used for, and how to apply them on charts (similar to how indicators are used in TradingView-style platforms).
Important: indicators do not predict the market. They help organize price and volume information and support structured decision-making. Any signal should always be interpreted in context and with proper risk management.
Practical Example of a Simple Indicator Setup
A common minimal setup includes:
Trend filter
Moving Average (50 or 200)
Momentum indicator
RSI (14)
Volatility indicator
ATR (14) or Bollinger Bands (20,2)
This combination helps answer three key questions:
- What is the trend?
- How strong is the momentum?
- How volatile is the market?
What is a technical indicator?
A technical indicator is a mathematical calculation based on market data, usually:
- price
- volume
- time
The result is displayed on the chart as:
- lines
- oscillators
- bands
- histograms
- channels or levels
Indicators help traders analyze:
- trend direction
- momentum
- volatility
- market strength
- possible support and resistance zones.
Are indicators “leading” or “lagging”?
Indicators are often categorized this way:
Lagging indicators
Confirm trends that already exist.
Examples:
- Moving Averages
- MACD
Leading indicators
Attempt to anticipate turning points or market exhaustion.
Examples:
- RSI
- Stochastic Oscillator
Leading indicators react faster but tend to produce more false signals.
What main types of indicators exist?
Indicators are best grouped by their purpose:
Trend indicators
Help identify the direction of the market.
Examples:
- Moving Averages
- Supertrend
- Ichimoku
- ADX
Momentum oscillators
Measure the strength and speed of price movement.
Examples:
- RSI
- Stochastic
- CCI
- MACD
Volatility indicators
Measure how actively the price moves.
Examples:
- Bollinger Bands
- ATR
- Keltner Channels
Volume indicators
Measure market participation and buying/selling pressure.
Examples:
- Volume
- OBV
- MFI
- VWAP
Support and resistance indicators Highlight important price zones.
Examples:
- Pivot Points
- Donchian Channels
- Fibonacci tools.
What does “overlay” mean?
Some indicators are drawn directly on the price chart.
Examples:
- Moving Average
- Bollinger Bands
- VWAP
- Supertrend
These are called overlay indicators.
Other indicators appear in a separate panel below the chart.
Examples:
- RSI
- MACD
- Volume
Why can the same indicator give different results for different traders?
Results vary due to:
- timeframe differences (M5 vs H1 vs D1)
- parameter settings
- data source (Close, HL2, OHLC4)
- market conditions (trend vs range)
- interpretation rules.
Indicators themselves are neutral tools — how they are used determines the outcome.
What does “repainting indicator” mean?
A repainting indicator changes historical signals when new price data appears.
This can make signals look perfect on past charts but unreliable in real-time.
Best practice:
Evaluate indicator signals only after the candle closes.
How do I add an indicator to a chart?
Typical workflow:
- Open the Indicators menu.
- Search by name or category.
- Select the indicator.
- It will appear either on the chart or in a separate panel.
How do I change indicator settings?
Open the indicator settings panel, usually through a gear icon or menu.
Common parameters include:
- Length / Period — number of candles used in calculations
- Source — price data used (Close, HL2, etc.)
- Style — colors and visibility
- Levels — reference values like RSI 30 / 70.
What is the indicator period (length)?
The period determines how many candles are included in the calculation.
Shorter period:
- faster signals
- more noise
Longer period:
- smoother signals
- slower reaction.
Common defaults:
- RSI: 14
- ATR: 14
- Bollinger Bands: 20
- Moving averages: 20, 50, 200.
What does “Source” mean?
Indicators can use different price inputs:
- Close
- Open
- HL2 (High + Low / 2)
- OHLC4 (Open + High + Low + Close / 4)
Most indicators use Close by default.
How many indicators should be used on one chart?
Usually 2–4 indicators are enough:
Typical combination:
- one trend indicator
- one momentum oscillator
- one volatility indicator
- optionally a volume indicator.
Using too many indicators often creates conflicting signals.
What are moving averages used for?
Moving averages smooth price data and help identify trends.
Common uses:
- identifying trend direction
- finding dynamic support or resistance
- filtering trades in the trend direction.
What is the difference between SMA and EMA?
SMA (Simple Moving Average)
Each candle has equal weight.
EMA (Exponential Moving Average)
Recent candles have greater influence.
EMA reacts faster to price changes.
What does a moving average crossover mean?
Typical interpretation:
- fast MA crossing above slow MA → bullish momentum
- fast MA crossing below slow MA → bearish momentum.
However, crossovers often lag behind price.
Why do traders watch the 200-period moving average?
The 200 MA is widely used as a long-term trend reference.
General interpretation:
- price above 200 MA → bullish environment
- price below 200 MA → bearish environment.
What does ADX measure?
ADX measures trend strength, not direction.
- low ADX → weak or ranging market
- high ADX → strong trend.
Direction is usually interpreted with price or +DI / −DI lines.
What is the Ichimoku indicator?
Ichimoku is a multi-component system that shows:
- trend direction
- support and resistance
- momentum
- future cloud projection.
Basic idea:
- price above the cloud → bullish bias
- price below the cloud → bearish bias.
What is Parabolic SAR?
Parabolic SAR plots dots above or below price.
Uses:
- trailing stop guidance
- trend direction visualization.
Weakness: many false signals in sideways markets.
What is Supertrend?
Supertrend is a volatility-based trend indicator often built using ATR.
It provides:
- trend direction
- dynamic stop levels.
Works best in trending markets.
What does RSI measure?
RSI measures the speed and magnitude of price movements.
The scale ranges from 0 to 100.
Common interpretation:
- above 70 → overbought
- below 30 → oversold.
Does overbought mean the market must fall?
Not necessarily.
In strong trends, RSI can remain overbought or oversold for long periods.
Better interpretation:
- in trends → look for pullbacks
- in ranges → look for reversals.
What is RSI divergence?
Divergence occurs when:
- price makes a new high
- RSI does not confirm it.
This may indicate weakening momentum.
However, divergence alone does not guarantee reversal.
What does the Stochastic Oscillator measure?
Stochastic compares the closing price with the recent price range.
Typical zones:
- above 80 → overbought
- below 20 → oversold.
Works well in range markets.
What is MACD?
MACD measures the difference between two exponential moving averages.
It helps identify:
- momentum changes
- trend shifts
- acceleration or slowing movement.
The MACD histogram shows momentum strength.
What are CCI and Williams %R?
They are alternative momentum oscillators.
CCI measures deviation from average price.
Williams %R is similar to Stochastic but inverted.
Most traders prefer using one main oscillator rather than several.
What are Bollinger Bands?
Bollinger Bands consist of:
- a moving average
- an upper band
- a lower band.
The bands expand and contract depending on volatility.
Key ideas:
- narrow bands → low volatility
- expanding bands → increasing volatility.
Does touching a Bollinger Band signal reversal?
Not necessarily.
Price can “ride the band” during strong trends.
More useful signals come from:
- volatility contraction
- breakouts after squeezes.
What are Donchian Channels?
Donchian Channels plot the highest high and lowest low over a period.
They are often used in breakout strategies.
What does ATR measure?
ATR (Average True Range) measures volatility.
It shows how much price typically moves during a period.
ATR is often used for:
- stop placement
- volatility filtering.
Why analyze volume?
Volume shows market participation.
Price movement supported by high volume is often considered stronger.
What does the Volume indicator show?
It displays the number of trades or ticks within each candle.
Traders often watch for:
- unusually high volume
- volume spikes near key levels.
What is OBV?
On-Balance Volume accumulates volume based on price direction.
It helps detect accumulation or distribution trends.
What is VWAP?
VWAP (Volume Weighted Average Price) represents the average price weighted by volume.
It is commonly used as:
- a reference price
- an intraday support or resistance level.
What are Pivot Points?
Pivot Points are calculated price levels used to estimate potential support and resistance.
They are widely used in intraday trading.
What are Fibonacci levels?
Fibonacci retracement levels highlight potential pullback zones in trends.
They are most useful when combined with:
- support/resistance
- trend analysis
- price structure.
If I want to identify a trend, what should I use?
Useful tools include:
- Moving Averages
- Supertrend
- Ichimoku
- ADX.
If I want to measure momentum?
Good choices include:
- RSI
- MACD
- Stochastic.
If I want to analyze volatility?
Common indicators:
- Bollinger Bands
- ATR
- Keltner Channels.
If I want volume confirmation?
Useful indicators:
- Volume
- VWAP
- OBV
- MFI.
Using too many indicators
Too many signals create confusion.
Focus on a small set that complement each other.
Over-optimizing parameters
Changing indicator settings to perfectly fit past data often leads to poor future performance.
Ignoring market structure
Indicators should be used together with:
- support and resistance
- price structure
- market context.
Trading signals before candle close
Many indicators change during candle formation.
Signals are usually more reliable after candle close.
Disclaimer
Technical indicators are analytical tools. They do not guarantee trading outcomes.
Always combine indicator signals with market context and proper risk management.