Parabolic Indicator

Parabolic time/price

The Parabolic Time/Price System, developed by Welles Wilder, is used to set trailing price stops and is sometimes referred to as the "SAR" (stop-and-reversal), Parabolic SAR is more popular for setting stops than for establishing direction or trend. Wilder recommended establishing the trend first, and then trading with Parabolic SAR in the direction of the trend. If the trend is up, buy when the indicator moves below the price. If the trend is down, sell when the indicator moves above the price.

The formula is quite complex and beyond the scope of this definition, but interpretation is relatively straightforward. The dotted lines below the price establish the trailing stop for a long position and the lines above establish the trailing stop for a short position. At the beginning of the move, the Parabolic SAR will provide a greater cushion between the price and the trailing stop. As the move gets underway, the distance between the price and the indicator will shrink, thus making for a tighter stop-loss as the price moves in a favorable direction.

If you are long (i.e., the price is above the SAR), the SAR will move up every day, regardless of the direction the price is moving. The amount the SAR moves up depends on the amount that prices move.

There are two variables: the step and the maximum step. The higher the step is set, the more sensitive the indicator will be to price changes. If the step is set too high, the indicator will fluctuate above and below the price too often, making interpretation difficult. The maximum step controls the adjustment of the SAR as the price moves. The lower the maximum step is set, the further the trailing stop will be from the price. Wilder recommends setting the step at .02 and the maximum step at .20.

When the parabolic is above price that is the buy signal price. When the parabolic is below price that is the sell entry signal.


Here is what a chart looks like with the parabolic indicator.


Here is a Video explaining the Parabolic Technical Indicator


Learn to Trade for Free


Free Daily Commodity Newsletter
Your Name:
Your E-mail Address:


Free Daily Stock Picks Newsletter
Your Name:
Your E-mail Address:


Free Daily Forex Trading Newsletter
Your Name:
Your E-mail Address: