Fresh Supply & Demand Zones: Free TradingView Indicator (Pine Script)

Add It to Your TradingView Chart

1Copy the scriptPress Copy script above, or the copy button on the code below.
2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.

Source Code

175 lines of Pine Script v6 from indicators/fresh-supply-demand-zones.pine, published under MPL-2.0 (file header). Keep the author's credit and licence lines when you reuse it.

fresh-supply-demand-zones.pine

// This Pine Script™ code is subject to the terms of the Mozilla Public License 2.0
// © Fresh Supply & Demand Zone Detector

//@version=6
indicator("Fresh Supply & Demand Zones", shorttitle="Fresh S&D", overlay=true, max_boxes_count=500, max_labels_count=200)

string GRP_DET = "Zone Detection"
int    atrLen    = input.int(14,  "ATR Period",              minval=5,   maxval=50,  group=GRP_DET)
float  bodyMult  = input.float(1.5,"Body ÷ ATR Threshold",  minval=1.0, maxval=5.0, step=0.1, group=GRP_DET, tooltip="How many times larger than ATR the candle body must be to qualify as momentum")
int    baseLB    = input.int(5,   "Base Lookback Bars",      minval=1,   maxval=20,  group=GRP_DET, tooltip="Max bars to search back for the base (source) candle")
bool   useRange  = input.bool(false, "Range Mode (cluster base)", group=GRP_DET)
int    rangeLB   = input.int(3,   "Range Cluster Size",      minval=2,   maxval=10,  group=GRP_DET)

string GRP_MGT = "Zone Management"
string mitType   = input.string("Wick", "Mitigation Trigger",  options=["Wick", "Close"], group=GRP_MGT)
int    mitBuffer = input.int(3,   "Min Bars Before Mitigation", minval=1, maxval=20,  group=GRP_MGT)
int    maxPerSide = input.int(15, "Max Zones Per Side",        minval=1,  maxval=50,  group=GRP_MGT)
bool   showMit   = input.bool(false, "Show Mitigated Zones (gray)", group=GRP_MGT)
bool   showLabels = input.bool(true, "Show Zone Labels",       group=GRP_MGT)

string GRP_FLT = "Filters"
float  minZoneATR = input.float(0.3, "Min Zone Height (× ATR)", minval=0.1, maxval=2.0, step=0.1, group=GRP_FLT)
float  maxZoneATR = input.float(3.0, "Max Zone Height (× ATR)", minval=1.0, maxval=10.0, step=0.5, group=GRP_FLT)

string GRP_STY = "Style"
color  supFill   = input.color(color.new(#ef5350, 80), "Supply Fill",   group=GRP_STY)
color  supBord   = input.color(color.new(#ef5350, 40), "Supply Border", group=GRP_STY)
color  demFill   = input.color(color.new(#26a69a, 80), "Demand Fill",   group=GRP_STY)
color  demBord   = input.color(color.new(#26a69a, 40), "Demand Border", group=GRP_STY)

float atrVal   = ta.atr(atrLen)
float bodySize = math.abs(close - open)

bool bullMom = bodySize > atrVal * bodyMult and close > open
bool bearMom = bodySize > atrVal * bodyMult and close < open

var array<box>   supBoxes = array.new_box()
var array<float> supTops  = array.new_float()
var array<float> supBots  = array.new_float()
var array<int>   supBars  = array.new_int()
var array<label> supLbls  = array.new_label()

var array<box>   demBoxes = array.new_box()
var array<float> demTops  = array.new_float()
var array<float> demBots  = array.new_float()
var array<int>   demBars  = array.new_int()
var array<label> demLbls  = array.new_label()

findBaseIndex(bool seekBullish, int lb) =>
    int idx = 1
    for i = 1 to lb
        bool match = seekBullish ? (close[i] > open[i]) : (close[i] < open[i])
        if match
            idx := i
            break
    idx

getZoneBounds(int baseIdx, bool rangeMode, int clusterSize) =>
    float zTop = high[baseIdx]
    float zBot = low[baseIdx]
    int   leftIdx = baseIdx
    if rangeMode
        for i = baseIdx to math.min(baseIdx + clusterSize - 1, 499)
            zTop := math.max(zTop, high[i])
            zBot := math.min(zBot, low[i])
            leftIdx := i
    [zTop, zBot, leftIdx]

isDuplicate(array<float> tops, array<float> bots, float newTop, float newBot) =>
    bool exists = false
    if array.size(tops) > 0
        float tol = atrVal * 0.08
        for i = 0 to array.size(tops) - 1
            if math.abs(array.get(tops, i) - newTop) < tol and math.abs(array.get(bots, i) - newBot) < tol
                exists := true
                break
    exists

trimOldest(array<box> boxes, array<float> tops, array<float> bots, array<int> bars, array<label> lbls, int maxCount) =>
    if array.size(boxes) > maxCount
        box.delete(array.shift(boxes))
        label.delete(array.shift(lbls))
        array.shift(tops)
        array.shift(bots)
        array.shift(bars)

color mitFill = color.new(color.gray, 93)
color mitBord = color.new(color.gray, 80)
color mitText = color.new(color.gray, 60)

if array.size(supBoxes) > 0
    for i = array.size(supBoxes) - 1 to 0
        if bar_index >= array.get(supBars, i) + mitBuffer
            float zBot = array.get(supBots, i)
            bool  hit  = mitType == "Wick" ? high >= zBot : close >= zBot
            if hit
                box   b = array.get(supBoxes, i)
                label l = array.get(supLbls, i)
                if showMit
                    box.set_extend(b, extend.none)
                    box.set_right(b, bar_index)
                    box.set_bgcolor(b, mitFill)
                    box.set_border_color(b, mitBord)
                    label.set_textcolor(l, mitText)
                else
                    box.delete(b)
                    label.delete(l)
                array.remove(supBoxes, i)
                array.remove(supTops, i)
                array.remove(supBots, i)
                array.remove(supBars, i)
                array.remove(supLbls, i)

if array.size(demBoxes) > 0
    for i = array.size(demBoxes) - 1 to 0
        if bar_index >= array.get(demBars, i) + mitBuffer
            float zTop = array.get(demTops, i)
            bool  hit  = mitType == "Wick" ? low <= zTop : close <= zTop
            if hit
                box   b = array.get(demBoxes, i)
                label l = array.get(demLbls, i)
                if showMit
                    box.set_extend(b, extend.none)
                    box.set_right(b, bar_index)
                    box.set_bgcolor(b, mitFill)
                    box.set_border_color(b, mitBord)
                    label.set_textcolor(l, mitText)
                else
                    box.delete(b)
                    label.delete(l)
                array.remove(demBoxes, i)
                array.remove(demTops, i)
                array.remove(demBots, i)
                array.remove(demBars, i)
                array.remove(demLbls, i)

if bearMom
    int baseIdx = findBaseIndex(true, baseLB)
    [zTop, zBot, leftIdx] = getZoneBounds(baseIdx, useRange, rangeLB)
    float zHeight = zTop - zBot
    bool validHeight = zHeight >= atrVal * minZoneATR and zHeight <= atrVal * maxZoneATR
    if validHeight and not isDuplicate(supTops, supBots, zTop, zBot)
        box   b = box.new(bar_index[leftIdx], zTop, bar_index, zBot, bgcolor=supFill, border_color=supBord, border_width=1, extend=extend.right)
        label l = label.new(bar_index[leftIdx], zTop, showLabels ? "S" : "", style=label.style_label_down, color=color.new(color.white, 100), textcolor=supBord, size=size.small)
        array.push(supBoxes, b)
        array.push(supTops, zTop)
        array.push(supBots, zBot)
        array.push(supBars, bar_index)
        array.push(supLbls, l)
        trimOldest(supBoxes, supTops, supBots, supBars, supLbls, maxPerSide)

if bullMom
    int baseIdx = findBaseIndex(false, baseLB)
    [zTop, zBot, leftIdx] = getZoneBounds(baseIdx, useRange, rangeLB)
    float zHeight = zTop - zBot
    bool validHeight = zHeight >= atrVal * minZoneATR and zHeight <= atrVal * maxZoneATR
    if validHeight and not isDuplicate(demTops, demBots, zTop, zBot)
        box   b = box.new(bar_index[leftIdx], zTop, bar_index, zBot, bgcolor=demFill, border_color=demBord, border_width=1, extend=extend.right)
        label l = label.new(bar_index[leftIdx], zBot, showLabels ? "D" : "", style=label.style_label_up, color=color.new(color.white, 100), textcolor=demBord, size=size.small)
        array.push(demBoxes, b)
        array.push(demTops, zTop)
        array.push(demBots, zBot)
        array.push(demBars, bar_index)
        array.push(demLbls, l)
        trimOldest(demBoxes, demTops, demBots, demBars, demLbls, maxPerSide)

var table infoTbl = table.new(position.top_right, 2, 2, bgcolor=color.new(color.black, 85), border_width=1, border_color=color.new(color.gray, 70))
if barstate.islast
    table.cell(infoTbl, 0, 0, "Supply", text_color=supBord, text_size=size.small)
    table.cell(infoTbl, 1, 0, str.tostring(array.size(supBoxes)), text_color=supBord, text_size=size.small)
    table.cell(infoTbl, 0, 1, "Demand", text_color=demBord, text_size=size.small)
    table.cell(infoTbl, 1, 1, str.tostring(array.size(demBoxes)), text_color=demBord, text_size=size.small)

alertcondition(bearMom, "New Supply Zone", "Fresh supply zone formed")
alertcondition(bullMom, "New Demand Zone", "Fresh demand zone formed")

Overview

Fresh Supply & Demand Zones identifies momentum candles based on ATR period and body size threshold, then scans back for base candles to form zones. Zones can use range mode for clustering or default single-candle approach. Mitigation triggers on wicks or closes after configurable bars. Filters limit zone height in ATR multiples and prevent duplicates. It draws colored boxes for supply (red) and demand (green) zones with optional labels and gray ghost zones for mitigated ones. Main settings include ATR length, body multiplier, lookback bars, range mode, and max zones per side. It works on any timeframe and instrument but is optimized for SMC trading on forex and gold.

ATR-based momentum detection
Supply & Demand zone plotting
Mitigation trigger
Range cluster mode
Zone height filters

Details

Published by

kvmafthab-pixel on GitHub

Code credit

Fresh Supply & Demand Zone Detector, as written in the script's header

Type

Indicator, Pine Script v6

Draws

On the price chart

Markets

Forex, Gold

Timeframes

Any timeframe

Risk Notes

No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.

File

indicators/fresh-supply-demand-zones.pine

Repository

github.com/kvmafthab-pixel/pinescript-smc-toolkit. See its other scripts in the library

Topics

pinescript-tradingview-trading-xauusdtechnical-analysis-smart-money

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

Setting	Type	Default	Variable
ATR Period	`int`	`14`	`atrLen`
Body ÷ ATR Threshold	`float`	`1.5`	`bodyMult`
Base Lookback Bars	`int`	`5`	`baseLB`
Range Mode (cluster base)	`bool`	`false`	`useRange`
Range Cluster Size	`int`	`3`	`rangeLB`
Mitigation Trigger	`string`	`Wick`	`mitType`
Min Bars Before Mitigation	`int`	`3`	`mitBuffer`
Max Zones Per Side	`int`	`15`	`maxPerSide`
Show Mitigated Zones (gray)	`bool`	`false`	`showMit`
Show Zone Labels	`bool`	`true`	`showLabels`
Min Zone Height (× ATR)	`float`	`0.3`	`minZoneATR`
Max Zone Height (× ATR)	`float`	`3.0`	`maxZoneATR`

Show all 16 settings

Setting	Type	Default	Variable
Supply Fill	`color`	`color.new(#ef5350, 80)`	`supFill`
Supply Border	`color`	`color.new(#ef5350, 40)`	`supBord`
Demand Fill	`color`	`color.new(#26a69a, 80)`	`demFill`
Demand Border	`color`	`color.new(#26a69a, 40)`	`demBord`

Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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