Originally created by Adam White, the Standard Deviation trendline is the type of indicator generally used by institutionals. The stock is trending when it is above the signal and loses steam when it falls below the signal. Generally you should buy when it is above it’s signal and sell when it goes below the signal. Based on supply and demand which will help you easily find the expected move. 3 Merged line of standard deviation. Day Loopback and MA Length are adjustable.

*Standard Deviation Volatility Helper** in action on Gold CFD.*

**Here is the complete list of features present in this indicator :**

- 3 Standard Deviation line merged
- Standard Deviation Period (In Day)
- Standard Deviation Length
- Moving Average Length Smoothing

All indicators have their original default settings. You need to be able to readjust them depending on the market instrument you want to analyze.

*Or copy / paste the source code into your pine editor :*

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/ // © RickSimpson //@version=4 study("Standard Deviation Volatility Helper", 'StdDev VH', false) //Inputs sdsrc = input(defval=close, title="Standard Deviation Source", type=input.source) d = input(defval=1, title="Standard Deviation Period", minval=1, type=input.integer) n = input(defval=30, title="Standard Deviation Length", minval=1, type=input.integer) esmooth = input(defval=false, title="Enable Smoothing?", type=input.bool) sdmalen = input(defval=20, title="MA Smoothing Length", minval=1, type=input.integer) //StdDev Function xPrice = log(close / close[1]) StdDev = stdev(xPrice, n) Hv = StdDev exp = exp(Hv * sqrt(d)) //Calculation SD1 = sdsrc * (exp) SD2 = SD1 * (exp) SD3 = SD2 * (exp) SDM = (SD1 + SD2 + SD3) / 3 SD1_ = sdsrc / (exp) SD2_ = SD1_ / (exp) SD3_ = SD2_ / (exp) SDM_ = (SD1_ + SD2_ + SD3_) / 3 SM = (SDM + SDM_) / 2 //Plotting output = (stoch(close, SD3, SD3_, n)) outputsmoothed = ema(output, sdmalen) render = esmooth ? outputsmoothed : output plot(render) hline(50) hline(20) hline(80)

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