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Technical Indicators Guide

A detailed reference for the technical indicators available in SFZ Capital's Strategy Creator. Understand how each works and when to use them in your automated trading bots.

Available Indicators

SFZ Capital's visual bot creator supports the following technical indicators. You can combine them to build entry and exit conditions â€- no coding required.

EMA â€- Exponential Moving Average

Trend

The EMA gives more weight to recent prices than a simple moving average, making it more responsive to new information. It's the most commonly used indicator for identifying trend direction.

EMA = Price(t) × k + EMA(y) × (1 − k), where k = 2 / (N + 1)

Common periods: 9 (short-term), 21 (medium), 50 (long-term), 200 (major trend). Shorter EMAs react faster to price changes; longer EMAs are smoother and better for trend confirmation.

How to use in SFZ bots

  • EMA crossover strategy: Buy when fast EMA (e.g. 9) crosses above slow EMA (e.g. 21)
  • Trend filter: Only take trades when price is above the 50 EMA
  • Dynamic support/resistance: Use EMA as a trailing reference point for stop placement

RSI â€- Relative Strength Index

Momentum

RSI measures the speed and magnitude of recent price changes to evaluate overbought or oversold conditions. It oscillates between 0 and 100.

RSI = 100 − (100 / (1 + RS)), where RS = Avg Gain / Avg Loss over N periods

Standard period: 14. Readings above 70 are considered overbought; below 30 is oversold. These thresholds are adjustable in the SFZ bot creator.

How to use in SFZ bots

  • Mean-reversion: Buy when RSI drops below 30, sell when it rises above 70
  • Confirmation filter: Only enter EMA crossover trades when RSI is above 50 (confirming momentum)
  • Divergence signals: Price making new highs while RSI is declining can signal a potential reversal

MACD â€- Moving Average Convergence Divergence

Momentum

MACD tracks the relationship between two EMAs. It's useful for identifying trend changes, momentum strength, and potential entry/exit timing.

MACD Line = EMA(12) − EMA(26) | Signal Line = EMA(9) of MACD Line

The MACD histogram shows the difference between the MACD line and signal line. Expanding histogram = increasing momentum; contracting = waning momentum.

How to use in SFZ bots

  • Signal line crossover: Buy when MACD crosses above signal line, sell on cross below
  • Zero line crossover: MACD crossing above zero confirms bullish trend shift
  • Combine with EMA: Use MACD for timing and EMA for trend direction

Bollinger Bands

Volatility

Bollinger Bands consist of a middle band (SMA) with upper and lower bands placed at standard deviations away. They expand during volatile periods and contract during quiet ones.

Upper Band = SMA(20) + 2σ | Lower Band = SMA(20) − 2σ

Approximately 95% of price action falls within the default 2-standard-deviation bands. Band width itself is an indicator of volatility.

How to use in SFZ bots

  • Mean reversion: Buy when price touches lower band, sell at upper band
  • Breakout detection: Price closing outside bands can indicate strong momentum
  • Squeeze detection: Narrow bands suggest an upcoming volatility expansion

ATR â€- Average True Range

Volatility

ATR measures market volatility by averaging the true range (the greatest of: current high − low, |high − previous close|, |low − previous close|) over a period.

ATR = SMA of True Range over N periods (typically 14)

ATR doesn't indicate direction â€- it measures how much an asset typically moves. Higher ATR = more volatile. It's invaluable for setting dynamic stop-losses.

How to use in SFZ bots

  • Dynamic stop-loss: Set stops at 1.5× or 2× ATR below entry â€- adapts to market conditions
  • Position sizing: Use ATR to normalise risk across different assets
  • Filter: Avoid trading when ATR is extremely low (no movement) or extremely high (choppy markets)

Quick Comparison

IndicatorCategoryBest ForDefault Period
EMATrendTrend direction & crossover signals9 / 21 / 50
RSIMomentumOverbought/oversold conditions14
MACDMomentumTrend changes & timing12, 26, 9
Bollinger BandsVolatilityMean reversion & breakouts20, 2σ
ATRVolatilityStop placement & position sizing14

Pro Tip: Combine Indicators

No single indicator is reliable on its own. SFZ's bot creator lets you layer multiple indicators â€- for example, EMA for trend direction + RSI for timing + ATR for stop placement. Backtest different combinations to find what works best for your target market.

References & External Sources