What is the difference between Parabolic SAR and Supertrend?

Parabolic SAR uses dots above/below price to signal trends, while Supertrend uses ATR-based bands with color changes for clearer, smoother trend direction and fewer false signals.

Aug 05, 2025 at 12:43 pm

Understanding the Core Mechanism of Parabolic SAR

The Parabolic SAR (Stop and Reverse) is a technical indicator developed by J. Welles Wilder that is primarily used to determine the direction of price movement and potential reversals in the market. It appears as a series of dots placed either above or below the price candles on a chart. When the dots are below the price, it signals an uptrend, and when they are above the price, it indicates a downtrend. This positioning helps traders identify potential entry and exit points.

The calculation of Parabolic SAR involves an acceleration factor and an extreme point. The formula adjusts dynamically based on the trend’s strength. The initial SAR value is set at the most recent extreme point, and with each new period, the SAR value moves closer to the price, accelerating as the trend continues. The key components are:

• AF (Acceleration Factor): Starts at 0.02 and increases by 0.02 each time a new extreme point is reached, up to a maximum of 0.20.
• EP (Extreme Point): The highest high in an uptrend or the lowest low in a downtrend.
• Prior SAR: The SAR value from the previous period.

The formula for the next period’s SAR is:
SAR = Prior SAR + AF × (EP – Prior SAR)

This mechanism makes Parabolic SAR highly responsive to price changes, especially in strong trending markets. However, in sideways or choppy markets, it can generate frequent false signals due to its sensitivity.

How Supertrend Determines Market Direction

The Supertrend indicator is a volatility-based trend-following tool that overlays on price charts using colored bands or lines to indicate trend direction. Unlike Parabolic SAR, Supertrend relies on Average True Range (ATR) and a multiplier to establish dynamic support and resistance levels. It is designed to stay in a trend until a reversal is confirmed by price action.

Supertrend calculates two values: the Upper Band and the Lower Band. These are derived as follows:

• Upper Band = (High + Low) / 2 + (Multiplier × ATR)
• Lower Band = (High + Low) / 2 – (Multiplier × ATR)

The actual Supertrend line switches between these bands based on price movement. When the closing price crosses above the Upper Band, the trend shifts to green (bullish). When the closing price falls below the Lower Band, the trend turns red (bearish).

The ATR period is typically set to 10, and the multiplier is commonly 3, though traders can adjust these. The use of ATR makes Supertrend adaptive to market volatility, reducing noise during consolidation phases compared to Parabolic SAR.

Visual Representation and Chart Behavior

On a price chart, Parabolic SAR appears as a sequence of dots that flip sides when a reversal is detected. In a strong uptrend, the dots trail below the candles and move upward with acceleration. During a downtrend, they appear above and descend. The proximity of the dots to price increases over time, which can trigger premature exits if volatility spikes.

In contrast, Supertrend displays as a continuous line that changes color based on trend direction. The line remains steady during trends and only flips when the price decisively breaches the ATR-based threshold. This results in fewer reversals and smoother signals, especially in ranging markets.

Traders often find Supertrend’s visual clarity more intuitive for quick decision-making. The color-coded output eliminates ambiguity, while Parabolic SAR’s dot-based system requires closer inspection to confirm trend changes, particularly when price whipsaws near the dots.

Signal Generation and Trade Timing

Parabolic SAR generates a buy signal when the dot moves below the price and a sell signal when it moves above. These signals are immediate but can be misleading during consolidation. For example:

• A dot flip below price may prompt a long entry, but if the market is ranging, the next candle could trigger a reversal.
• The acceleration factor causes SAR to catch up quickly to price, increasing the chance of being stopped out prematurely.

Supertrend signals are based on candle close relative to the bands. A bullish signal occurs only when the closing price is above the Upper Band, and a bearish signal forms when the close is below the Lower Band. This reliance on closing prices adds a layer of confirmation, reducing false entries.

Both indicators can be used for stop-loss placement:

• With Parabolic SAR, the dot serves as a trailing stop.
• With Supertrend, the current band value (Upper or Lower) acts as the dynamic stop-loss level.

However, Supertrend tends to provide more stable stop levels due to ATR smoothing, while Parabolic SAR’s stops tighten rapidly, which may not suit all trading styles.

Parameter Sensitivity and Customization

Parabolic SAR allows adjustment of the acceleration factor (AF) and maximum AF. Increasing the initial AF makes the indicator more sensitive, causing earlier reversals. Lowering it makes the trend last longer. Traders experimenting with settings might:

• Use AF start = 0.01 and max = 0.10 for slower, more reliable signals.
• Increase AF to 0.03 and max to 0.30 for scalping in strong trends.

Supertrend customization focuses on the ATR period and multiplier:

• ATR period of 7 with multiplier 2 creates a tighter band, suitable for short-term trading.
• ATR period of 14 and multiplier 3 produces wider bands, ideal for swing trading.

Adjusting these parameters changes how often signals occur. A lower multiplier in Supertrend leads to more reversals, mimicking Parabolic SAR’s behavior. Conversely, a higher multiplier reduces signal frequency, enhancing reliability.

Use Cases and Market Conditions

Parabolic SAR performs best in strong trending markets where price moves in one direction for extended periods. It is widely used in forex and crypto for scalping and day trading. However, during low volatility or sideways movement, it generates whipsaws that can erode profits.

Supertrend excels in both trending and moderately volatile markets. Its ATR foundation allows it to adapt to changing conditions, making it suitable for crypto assets with high volatility. Traders use it for:

• Identifying trend direction on 15-minute to daily charts.
• Setting trailing stops in automated trading bots.
• Confirming entries from other indicators like RSI or MACD.

Because Supertrend filters out minor price fluctuations, it is preferred in algorithmic strategies where signal stability is critical.

Frequently Asked Questions

Can Parabolic SAR and Supertrend be used together?

Yes, combining both indicators can improve signal accuracy. For example, a trader might wait for Parabolic SAR to flip below price and confirm with a Supertrend turning green before entering a long position. This dual confirmation reduces false signals.

Which indicator is better for crypto day trading?
Supertrend is generally more reliable for crypto day trading due to its smoother response and reduced noise. Its use of ATR aligns well with the high volatility of cryptocurrencies, preventing premature exits common with Parabolic SAR.

How do I set up Supertrend on TradingView?

In TradingView, click “Indicators” > search “Supertrend” > add it to the chart. Adjust the ATR period and multiplier in the settings. Default values are 10 and 3. The line turns green for uptrend and red for downtrend automatically.

Does Parabolic SAR work on all timeframes?

Yes, but effectiveness varies. On lower timeframes (1m, 5m), it produces excessive signals. It performs better on 1H and above, where trends are more defined. Always test on historical data before live trading.