Support and Resistance Levels

Detecting Support and Resistance Levels

Support & Resistance levels are essential for every trader to define the decision points of the markets. If you are long and the market falls below the previous support level, you most probably have got the wrong position and better exit.

This script uses the first and second deviation of a curve to find the turning points and extremes of the price curve.

The deviation of a curve is nothing else than the momentum of a curve (and inertia is another name for momentum). It defines the slope of the curve. If the slope of a curve is zero, you have found a local extreme. The curve will change from rising to falling or the other way round.

The second deviation, or the momentum of momentum, shows you the turning points of the first deviation. This is important, as at this point the original curve will switch from acceleration to break mode.

Using the logic laid out above the support&resistance indicator will show the turning points of the market in a timely manner. Depending on level of market-smoothing it will show the long term or short term turning points.

This script first calculates the first and second deviation of the smoothed market, and in a second step runs the turning point detection.

Style tags: Trend Following, Trend Analysis
Asset class: Equities, Futures, ETFs, Currencies and Commodities
Dataset: FX Minutes/Hours/Days
Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.


The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.

Want to use this script on a chart?