Parabolic SAR

He also includes a TrailingStop and a BreakEven function to secure your current profits. Problem with trading sessions of some brokers Aug 28, Fixed: Results achieved on the demo account are hypothetical and no representation is made that any account will or is likely to achieve actual profits or losses similar to those achieved in the demo account. As shown in the spreadsheet example, the Step is a multiplier that influences the rate-of-change in SAR.


Stop is then trailed along with each new Sar dot till trend remains intact. The main reason for that is: Parabolic SAR can easily create whip-saws false signals during periods of market consolidation. Thus Forex traders will need other Forex indicators to identify those strong trending periods. For himself, Welles Wilder developed ADX indicator - another trend indicator - which tells what kind of trend is dominant and how strong the trend is.

Upon knowing the trend and its health Forex traders can pick appropriate signals from Parabolic SAR and disregard the rest. How do you determine the trend if you don't want to use ADX. Price readings above it would suggest an uptrend, below - downtrend.

So, Parabolic SAR is developed to keep stop loss level moving adjusting to new prices and thus locking profits on its way. The formula of Parabolic SAR includes an "acceleration factor", which allows to react to market changes fast as the trend starts to accelerate. At the beginning, new Parabolic SAR dots are placed close together and then accelerate as the trend advances.

Parabolic SAR has two variables: Settings recommended by W. Enter Long position when the current price touches the indicator from below and it changes its direction. Enter Short position when the current price touches the indicator from above and it changes its direction. Adjust stop-loss with each new bar. Take-profit should be set to the same value as stop-loss, but you should not adjust it. For example, if your Short trade entry level is 1. Judging from above it is easy to conclude that short and long positions always follow one after another in this strategy.

You can also see that although take-profit helps to keep many of the trades in the green, it also prevents those trades from reaching their full potential. That is why it is referred to as the Acceleration Factor. Step gradually increases as the trend extends until it hits a maximum. SAR sensitivity can be decreased by decreasing the Step. A lower step moves SAR further from price, which makes a reversal less likely. SAR sensitivity can be increased by increasing the step.

A higher step moves SAR closer to the price action, which makes a reversal more likely. The indicator will reverse too often if the step is set too high. This will produce whipsaws and fail to capture the trend. Chart 7 shows IBM with a higher Step. SAR is more sensitive in chart 7 because there are more reversals. This is because the Step is higher in chart 7. The sensitivity of the indicator can also be adjusted using the Maximum Step. While the Maximum Step can influence sensitivity, the Step carries more weight because it sets the incremental rate-of-increase as the trend develops.

Also, note that increasing the Step ensures that the Maximum Step will be hit quicker when a trend develops. This lower Maximum Step decreases the sensitivity of the indicator and produces fewer reversals. Notice how this setting caught a two-month downtrend and a subsequent two-month uptrend.

This higher reading produced extra reversals in early February and early April. After all, SAR is designed to catch the trend and follow it like a trailing stop.

As with most indicators, the signal quality depends on the settings and the characteristics of the underlying security.