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Parabolic SAR Explained: Formula, Strategy & Trading Tips

Written by Itsariya Doungnet

Fact checked by Antonio Di Giacomo

Updated 22 August 2025

parabolic-sar

Table of Contents

    The Parabolic SAR indicator is an essential tool for traders who need to identify market trends and determine their entry and exit points.

    This article explains the simple formula behind the Parabolic SAR indicator and shares easy-to-follow strategies to help improve your trading. Keep reading to learn how to use this indicator the right way.

    Key Takeaways

    • The Parabolic SAR indicator reveals both the current market direction and potential trend reversals.

    • The indicator functions optimally when prices demonstrate clear upward or downward movement instead of remaining stable.

    • The combination of Parabolic SAR with RSI and Moving Averages produces more dependable trading signals.

    • The performance of the indicator improves when you adjust its parameters to match market speed.

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    What is Parabolic SAR?

    The Parabolic SAR indicator functions across various time periods and financial instruments, which makes it an effective tool for identifying market entry and exit opportunities. The indicator helps traders to detect trend direction changes and determine stop loss positions. 

    parabolic-sar-setting

    The indicator shows dots that stay below prices during upward trend-following technical indicators and above prices during downward trends. The indicator signals trend reversals through price movements across the dots , which helps traders determine when to stop or reverse their positions.

     

    Why is the Parabolic SAR important for traders?

    The Parabolic is an essential tool for traders because it reveals potential trend direction changes. This indicator helps traders find the perfect entry and exit points while controlling their risk exposure and establishing stop-loss positions.

    The Parabolic SAR provides straightforward trend reversal indicators that enable traders to track market movements better and make better trading choices. The Parabolic SAR functions across multiple assets and time periods , which makes it useful for traders at all experience levels.

     

    How does the Parabolic SAR Indicator work?

    The Parabolic SAR functions as a price chart indicator that displays dots to help traders detect potential trend reversal patterns.

    • The price dots appear below the price when the market moves upward.

    • The price dots appear above the price when the market experiences downward movement.

    The indicator brings its dots closer to the price as trends extend which helps traders detect potential reversals. The indicator accelerates its speed based on the duration of price movement in one direction thus reducing the time before price changes occur.

    Parabolic-SAR-indicator-strategy

    This Is How to Read Parabolic SAR Signals:

    • A buy signal appears when the price crosses above the dots.

    • A sell signal emerges when the price crosses below the dots.

    The indicator helps traders set stop losses that automatically adjust their position based on price movements to protect their profits.

    The acceleration factor in SAR determines how fast the dots move through the price chart with 0.02 being the standard setting. The Parabolic SAR delivers its best results in markets with clear trends yet produces incorrect signals during sideways or choppy market conditions so traders should combine it with other indicators for improved trading decisions.

     

    What is the SAR formula for uptrends and downtrends?

    The Parabolic SAR uses a particular formula to track price movements and detect potential trend changes. It adjusts differently in uptrends and downtrends, helping traders decide when to enter or exit a trade.

     

    Bullish SAR Formula for Uptrends:

    In an uptrend, SAR values are below the price.

     

    SARn = SARn-1 + AF × (EP - SARn-1)

    • SARn: Current SAR value

    • SARn-1: Previous SAR value

    • AF: Acceleration Factor (starts at 0.02, increases by 0.02, max 0.20)

    • EP: Extreme Point (highest high of the trend so far)

     

    Bearish SAR Formula for Downtrends:

     

    SARn = SARn-1 - AF × (SARn-1 - EP)

    • EP in a downtrend is the lowest low of the trend.

    • SAR values appear above the price during a downtrend.

     

    What are Parabolic SAR Trading Strategies?

    The Parabolic SAR indicator functions as a versatile tool which helps traders detect trend shifts and improve their trading timing. Several well-known strategies are presented below.

     

    Breakout Strategy

    The breakout strategy functions as a main method which detects trend reversals and pullbacks through Parabolic SAR dots moving between price levels. The dots moving above the price during an uptrend usually signal the trend has reached a pause or reversal point.

    Parabolic-SAR-indicator-setting

    Traders establish stop-loss orders at the lowest recent price points to safeguard their positions. This trading approach delivers its best results during strong trending market conditions but performs poorly during sideways or choppy market conditions.

     

    Double Timeframe Strategy

    The strategy implements analysis across two different time periods. The first step involves examining a longer period to establish the dominant market direction. The second step involves using shorter timeframes to execute trades that align with the identified trend.

    The technique helps traders discard unprofitable signals and boosts their opportunities for successful trades. The daily chart indicates an uptrend so traders execute trades only when the hourly chart produces matching signals.

     

    Forex Trading Strategy

    The application of Parabolic SAR in forex trading follows the same principles as its use in stocks and  commodities. The indicator produces accurate signals during powerful trending movements but produces incorrect alerts during periods of market stability. The implementation of proper risk management techniques becomes essential when dealing with these market situations.

     

    Scalping Strategy

    Scalping traders implement this strategy through short-term trading on 1-minute and 5-minute charts. The double timeframe strategy applies to this method as well because traders use longer timeframes to validate trends before entering and exiting trades on shorter timeframes. Scalpers achieve success by following the main trend direction to maximize their trading opportunities.

     

    Best Settings and Timeframes for Parabolic SAR

    The Parabolic SAR indicator includes default parameters that suit most traders but you can modify them according to your trading approach.

    The Acceleration Factor (AF) represents the main adjustable parameter which determines the indicator's speed in responding to market price movements.

    Parabolic-SAR-example-no-1

    The indicator becomes more sensitive when you increase the AF but its sensitivity decreases when you lower it which helps reduce false signals.

    • Intraday trading: The Parabolic SAR indicator functions on various timeframes based on what you want to achieve in your trading activities.

    • Swing trading: The Parabolic SAR indicator functions best on 1-minute to 15-minute charts when traders want to make quick trades.

    • Long-term trading: Swing traders should use the indicator on 1-hour to daily charts to identify medium-term market trends.

     

    Advanced Parabolic SAR Strategies

    The Parabolic SAR strategy requires advanced methods to enhance precision which results in improved decision-making. Here’s how you can do it:

     

    Use Multi-Timeframe Analysis

    Check the Parabolic SAR on different timeframes, like daily and hourly charts. The main trend identification happens through the longer timeframe while the shorter timeframe helps you find better entry and exit points. The method allows you to trade with the stronger trend direction, which minimizes false signal occurrences.

     

    Adjust the Acceleration Factor (AF) Based on Market Volatility

    The Acceleration Factor determines the sensitivity level of the Parabolic SAR indicator when tracking  price movements. The  AF should be increased during volatile market conditions to detect trends more quickly.

    The AF should be decreased in stable markets to prevent premature stop-outs from small price fluctuations. The adjustment of AF enables you to match the indicator with current market conditions.

     

    Combine Parabolic SAR with Other Indicators

    The combination of the Parabolic SAR with  ADX  and RSI  and  Moving Averages enables you to validate signals and eliminate incorrect trading opportunities. The combination of indicators  makes your trading system more dependable while protecting you from market volatility losses.

     

    Examples of Parabolic SAR in Real Markets

    The Parabolic SAR's operation in actual market conditions becomes clearer when you understand its mechanics which makes it more practical for your trading needs. 

     

    Parabolic SAR Example on AUD/USD

    Parabolic-SAR-example-no-2

    Late June: Bullish Reversal Signal

    The Parabolic SAR dots changed direction from above the candles to below during June 24-25 after a powerful bearish movement. The change in Parabolic SAR dots indicated a possible shift toward an upward market direction.

    • Market Reaction: The price started a powerful upward movement immediately following the flip.

    • Trading Insight: The SAR dots would serve as an appropriate entry point for long trades because they function as a protective trailing stop during trend following.

     

    Mid-July: Bearish Reversal Confirmation

    The Parabolic SAR indicator changed direction on July 18–19 after a long period of price growth by moving from below to above the price level. The price movement indicated a fundamental change in market momentum, which signaled the beginning of a bearish phase.

    • Market Reaction: The price dropped after the signal appeared in accordance with the SAR's reversal indication.

    • Trading Insight: A trader should exit their long positions while considering short entries while using the SAR to manage risk levels.

     

    Late July: Bearish Trend Continuation

    The Parabolic SAR indicator shows a price above the level, which  indicates that the downtrend remains active. The bearish sentiment will continue unless the dots move below the candles.

     

    Parabolic SAR Example on S&P 500 using Formula

    Parabolic-SAR-example-formula

    Current Status (Late July):

    • The Parabolic SAR dots are below the price, signaling a bullish trend.

    • The last few candlesticks are above the SAR line.

    • The latest extreme point (EP) is approximately 6,384, with the current SAR value near 6,362.

    • The Acceleration Factor (AF) has likely increased as the price made new highs, currently around 0.06.

     

    Predicting the Next Parabolic SAR Level

    The uptrend Parabolic SAR formula is used as follows:

    • SARn = SARn-1 + AF × (EP - SARn-1)

    • SARn = 6361.98 + 0.06× (6384.01 - 6361.98) = 6363.30

    The uptrend will continue if the price remains above 6,363.30 and the SAR dots will move closer to price to lock in profits.

    The indicator will flip dots above the price bars if the price falls below the SAR value which will generate a potential trend reversal and a sell signal (ParSE).

     

    What are the Pros and Cons of Parabolic SAR?

    The Parabolic SAR system helps traders to detect market trends and identify potential reversals. The knowledge of its benefits and limitations will improve your application of the indicator and prevent mistakes.

    Pros

    Cons

    Simple to use and understand

    The system produces false whipsaw signals in sideways markets.

    The system uses dynamic stop levels which track market trends.

    Less reliable in non-trending markets

    Helps identify trend direction and reversals

     

     

    Conclusion

    The Parabolic SAR functions is an essential tool which helps traders detect market trends and identify potential market reversals. The indicator functions optimally in markets with defined trends to assist traders in making better Parabolic SAR entry and exit points.

    The Parabolic SAR requires integration with other indicators to eliminate false signals while traders should modify its parameters according to market conditions. The Parabolic SAR becomes an effective trading tool when traders use it correctly with proper risk management to enhance their trading strategy and protect their profits.

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    Table of Contents

      FAQs

      The Parabolic SAR indicator uses dots above or below the price to indicate potential trend changes. A moving average displays the average price throughout time to reduce price fluctuations.

      Not really. SAR works best in strong trending markets. The price movement in sideways markets produces false signals because the price moves back and forth which triggers frequent entries and exits.

      SAR can be helpful on its own in trending markets, but it’s more reliable when combined with other indicators like RSI, ADX, or Moving Averages. This helps confirm signals and reduce false trades.

      Yes! Trading platforms including MetaTrader and TradingView and others enable users to automate SAR signals. Trading becomes easier and faster through custom scripts and bots and alerts which you can use for automation.

      The tool proves useful for detecting trend changes and stop-loss placement in markets that demonstrate strong upward or downward movement. The tool works effectively when used properly.

      The Parabolic SAR indicator functions as a lagging indicator because it tracks price movements to validate trends after they have started. The indicator responds more quickly than traditional lagging indicators such as moving averages.

      Itsariya Doungnet

      Itsariya Doungnet

      SEO Content Writer

      Itsariya Doungnet is an SEO content writer with expertise in both Thai and English, specializing in financial education. Itsariya blends clear communication with SEO techniques to make complex topics on investing and finance easy to understand and accessible to readers.

      Antonio Di Giacomo

      Antonio Di Giacomo

      Market Analyst

      Antonio Di Giacomo studied at the Bessières School of Accounting in Paris, France, as well as at the Instituto Tecnológico Autónomo de México (ITAM). He has experience in technical analysis of financial markets, focusing on price action and fundamental analysis. After many years in the financial markets, he now prefers to share his knowledge with future traders and explain this excellent business to them.

      This written/visual material is comprised of personal opinions and ideas and may not reflect those of the Company. The content should not be construed as containing any type of investment advice and/or a solicitation for any transactions. It does not imply an obligation to purchase investment services, nor does it guarantee or predict future performance. XS, its affiliates, agents, directors, officers or employees do not guarantee the accuracy, validity, timeliness or completeness of any information or data made available and assume no liability for any loss arising from any investment based on the same. Our platform may not offer all the products or services mentioned.

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