Auto Fib Extension: 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

298 lines of Pine Script v6 from test/pinescripts/auto-fix-ext.pine, published under AGPL-3.0. Keep the author's credit and licence lines when you reuse it.

auto-fix-ext.pine

//@version=6
indicator("Auto Fib Extension", overlay=true)

depthTooltip = "The minimum number of bars that will be taken into account when calculating the indicator."
depth = input.int(title="Depth", defval=10, minval=2, inline = "Pivots", tooltip=depthTooltip)
reverse = input(false, "Reverse", display = display.none)
var extendLeft = input(false, "Extend Left    |    Extend Right", inline = "Extend Lines", display = display.none)
var extendRight = input(true, "", inline = "Extend Lines", display = display.none)
var extending = extend.none
if extendLeft and extendRight
    extending := extend.both
if extendLeft and not extendRight
    extending := extend.left
if not extendLeft and extendRight
    extending := extend.right
prices = input(true, "Show Prices", display = display.none)
levels = input(true, "Show Levels", inline = "Levels", display = display.none)
levelsFormat = input.string("Values", "", options = ["Values", "Percent"], inline = "Levels", display = display.none, active = levels)
labelsPosition = input.string("Left", "Labels Position", options = ["Left", "Right"], display = display.none)
backgroundTransparency = input.int(85, "Background Transparency", minval = 0, maxval = 100, display = display.none)

upperThreshold = 0.236
lowerThreshold = 1.0


pivots(src, length, isHigh) =>
    if bar_index >= length
        price = nz(src[length])
        found = true
        for i = 0 to length * 2
            if (isHigh and src[i] > price) or (not isHigh and src[i] < price)
                found := false
                break
        if found
            chart.point.from_time(time[length], price)

update()=>
    var line lineLastHL = na
    var line lineLastLH = na
    var line lineLast = na

    var chart.point[] pivotsH = array.new<chart.point>()
    var chart.point lastH = na
    var chart.point[] pivotsL = array.new<chart.point>()
    var chart.point lastL = na

    var isHighLast = false
    var float startPrice = na
    var float endPrice = na

    H = pivots(high, depth / 2, true)
    L = pivots(low, depth / 2, false)

    countPivotsH = array.size(pivotsH)
    countPivotsL = array.size(pivotsL)

    if countPivotsH > 0 and countPivotsL > 0
        lastH := array.get(pivotsH, countPivotsH-1)
        lastL := array.get(pivotsL, countPivotsL-1)
        isHighLast := lastH.time > lastL.time
        if isHighLast
            if not na(H)
                if H.price > lastH.price
                    array.set(pivotsH, countPivotsH-1, H)
                H := na
        else
            if not na(L)
                if L.price < lastL.price
                    array.set(pivotsL, countPivotsL-1, L)
                L := na

    if not na(H)
        array.push(pivotsH, H)

    if not na(L)
        array.push(pivotsL, L)

    if barstate.islast and array.size(pivotsH) > 0 and array.size(pivotsL) > 0
        pivotsHCopy = array.copy(pivotsH)
        pivotsLCopy = array.copy(pivotsL)
        while array.size(pivotsHCopy) > 0 and array.size(pivotsLCopy) > 0
            lastH := array.pop(pivotsHCopy)
            lastL := array.pop(pivotsLCopy)

            isHighLast := lastH.time > lastL.time
            pivots = isHighLast ? pivotsHCopy : pivotsLCopy

            for i = array.size(pivots)-1 to 0
                if i < 0
                    break
                p = array.get(pivots, i)
                if p.time < lastL.time
                    break
                betterPrice = isHighLast ? p.price > lastH.price : p.price < lastL.price
                if p.price > lastH.price
                    lastH := array.pop(pivots)
                else
                    array.remove(pivots, i)

            if array.size(pivotsHCopy) == 0 or array.size(pivotsLCopy) == 0
                break

            isHighLast := lastH.time > lastL.time
            pivots := isHighLast ? pivotsHCopy : pivotsLCopy

            prevPivot = array.get(pivots, array.size(pivots)-1)
            startPrice := prevPivot.price

            if isHighLast
                endPrice := lastL.price
                diff = math.abs(startPrice - endPrice)
                if lastH.price > endPrice + diff * lowerThreshold or lastH.price < endPrice + diff * upperThreshold
                    array.push(pivotsLCopy, lastL)
                    continue
                line.delete(lineLastHL)
                line.delete(lineLastLH)
                lineLastHL := line.new(prevPivot, lastL, color=color.red, width=1, style=line.style_dashed, xloc = xloc.bar_time)
                lineLastLH := line.new(lastL, lastH, color=color.green, width=1, style=line.style_dashed, xloc = xloc.bar_time)
                lineLast := lineLastLH
            else
                endPrice := lastH.price
                diff = math.abs(startPrice - endPrice)
                if lastL.price < endPrice - diff * lowerThreshold or lastL.price > endPrice - diff * upperThreshold
                    array.push(pivotsHCopy, lastH)
                    continue
                line.delete(lineLastHL)
                line.delete(lineLastLH)
                lineLastLH := line.new(prevPivot, lastH, color=color.red, width=1, style=line.style_dashed, xloc = xloc.bar_time)
                lineLastHL := line.new(lastH, lastL, color=color.green, width=1, style=line.style_dashed, xloc = xloc.bar_time)
                lineLast := lineLastHL
            break
    diff = (isHighLast ? -1 : 1) * math.abs(startPrice - endPrice)
    offset = isHighLast ? line.get_y1(lineLastLH) - line.get_y2(lineLastLH) : line.get_y1(lineLastHL) - line.get_y2(lineLastHL)
    offset := (isHighLast ? -1 : 1) * math.abs(offset)
    if barstate.islast and na(lineLast)
        runtime.error("Not enough data to calculate Auto Fib Extension on the current symbol. Change the chart's timeframe to a lower one or select a smaller calculation depth using the indicator's `Depth` settings.")

    [endPrice - offset, diff, lineLast]

[endPrice, diff, lineLast] = update()

_draw_line(price, col) =>
    var id = line.new(time, price, time, price, color=col, width=1, extend=extending, xloc = xloc.bar_time)
    if not na(lineLast)
        line.set_xy1(id, line.get_x1(lineLast), price)
        line.set_xy2(id, line.get_x2(lineLast), price)
    id

_draw_label(price, txt, txtColor) =>
    if not na(price)
        x = labelsPosition == "Left" ? line.get_x1(lineLast) : not extendRight ? line.get_x2(lineLast) : time
        labelStyle = labelsPosition == "Left" ? label.style_label_right : label.style_label_left
        align = labelsPosition == "Left" ? text.align_right : text.align_left
        labelsAlignStrLeft = txt + '\n ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏ \n'
        labelsAlignStrRight = '       ' + txt + '\n ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏  ‏ \n'
        labelsAlignStr = labelsPosition == "Left" ? labelsAlignStrLeft : labelsAlignStrRight
        var id = label.new(x=x, y=price, text=labelsAlignStr, textcolor=txtColor, style=labelStyle, textalign=align, color=#00000000, xloc = xloc.bar_time)
        label.set_xy(id, x, price)
        label.set_text(id, labelsAlignStr)
        label.set_textcolor(id, txtColor)

_wrap(txt) =>
    "(" + str.tostring(txt, format.mintick) + ")"

_label_txt(level, price) =>
    if not na(price)
        l = levelsFormat == "Values" ? str.tostring(level) : str.tostring(level * 100) + "%"
        (levels ? l : "") + (prices ? _wrap(price) : "")

_crossing_level(sr, r) =>
    (r > sr and r < sr[1]) or (r < sr and r > sr[1])


processLevel(show, value, colorL, lineIdOther) =>
    float m = value
    r = endPrice + ((reverse ? -1 : 1) * diff * m)
    if show
        lineId = _draw_line(r, colorL)
        _draw_label(r, _label_txt(m, r), colorL)
        if _crossing_level(close, r)
            alert("Autofib: " + syminfo.ticker + " crossing level " + str.tostring(value))
        if not na(lineIdOther)
            linefill.new(lineId, lineIdOther, color = color.new(colorL, backgroundTransparency))
        lineId
    else
        lineIdOther

show_0  = input(true, "", inline = "Level0", display = display.none)
value_0 = input(0, "", inline = "Level0", display = display.none, active = show_0)
color_0 = input(#787b86, "", inline = "Level0", display = display.none, active = show_0)

show_0_236  = input(true, "", inline = "Level0", display = display.none)
value_0_236 = input(0.236, "", inline = "Level0", display = display.none, active = show_0_236)
color_0_236 = input(#f44336, "", inline = "Level0", display = display.none, active = show_0_236)

show_0_382  = input(true, "", inline = "Level1", display = display.none)
value_0_382 = input(0.382, "", inline = "Level1", display = display.none, active = show_0_382)
color_0_382 = input(#81c784, "", inline = "Level1", display = display.none, active = show_0_382)

show_0_5  = input(true, "", inline = "Level1", display = display.none)
value_0_5 = input(0.5, "", inline = "Level1", display = display.none, active = show_0_5)
color_0_5 = input(#4caf50, "", inline = "Level1", display = display.none, active = show_0_5)

show_0_618  = input(true, "", inline = "Level2", display = display.none)
value_0_618 = input(0.618, "", inline = "Level2", display = display.none, active = show_0_618)
color_0_618 = input(#009688, "", inline = "Level2", display = display.none, active = show_0_618)

show_0_65  = input(false, "", inline = "Level2", display = display.none)
value_0_65 = input(0.65, "", inline = "Level2", display = display.none, active = show_0_65)
color_0_65 = input(#009688, "", inline = "Level2", display = display.none, active = show_0_65)

show_0_786  = input(true, "", inline = "Level3", display = display.none)
value_0_786 = input(0.786, "", inline = "Level3", display = display.none, active = show_0_786)
color_0_786 = input(#64b5f6, "", inline = "Level3", display = display.none, active = show_0_786)

show_1  = input(true, "", inline = "Level3", display = display.none)
value_1 = input(1, "", inline = "Level3", display = display.none, active = show_1)
color_1 = input(#787b86, "", inline = "Level3", display = display.none, active = show_1)

show_1_272  = input(false, "", inline = "Level4", display = display.none)
value_1_272 = input(1.272, "", inline = "Level4", display = display.none, active = show_1_272)
color_1_272 = input(#81c784, "", inline = "Level4", display = display.none, active = show_1_272)

show_1_414  = input(false, "", inline = "Level4", display = display.none)
value_1_414 = input(1.414, "", inline = "Level4", display = display.none, active = show_1_414)
color_1_414 = input(#f44336, "", inline = "Level4", display = display.none, active = show_1_414)

show_1_618  = input(true, "", inline = "Level5", display = display.none)
value_1_618 = input(1.618, "", inline = "Level5", display = display.none, active = show_1_618)
color_1_618 = input(#2962ff, "", inline = "Level5", display = display.none, active = show_1_618)

show_1_65  = input(false, "", inline = "Level5", display = display.none)
value_1_65 = input(1.65, "", inline = "Level5", display = display.none, active = show_1_65)
color_1_65 = input(#2962ff, "", inline = "Level5", display = display.none, active = show_1_65)

show_2_618  = input(true, "", inline = "Level6", display = display.none)
value_2_618 = input(2.618, "", inline = "Level6", display = display.none, active = show_2_618)
color_2_618 = input(#f44336, "", inline = "Level6", display = display.none, active = show_2_618)

show_2_65  = input(false, "", inline = "Level6", display = display.none)
value_2_65 = input(2.65, "", inline = "Level6", display = display.none, active = show_2_65)
color_2_65 = input(#f44336, "", inline = "Level6", display = display.none, active = show_2_65)

show_3_618  = input(true, "", inline = "Level7", display = display.none)
value_3_618 = input(3.618, "", inline = "Level7", display = display.none, active = show_3_618)
color_3_618 = input(#9c27b0, "", inline = "Level7", display = display.none, active = show_3_618)

show_3_65  = input(false, "", inline = "Level7", display = display.none)
value_3_65 = input(3.65, "", inline = "Level7", display = display.none, active = show_3_65)
color_3_65 = input(#9c27b0, "", inline = "Level7", display = display.none, active = show_3_65)

show_4_236  = input(true, "", inline = "Level8", display = display.none)
value_4_236 = input(4.236, "", inline = "Level8", display = display.none, active = show_4_236)
color_4_236 = input(#e91e63, "", inline = "Level8", display = display.none, active = show_4_236)

show_4_618  = input(false, "", inline = "Level8", display = display.none)
value_4_618 = input(4.618, "", inline = "Level8", display = display.none, active = show_4_618)
color_4_618 = input(#81c784, "", inline = "Level8", display = display.none, active = show_4_618)

show_neg_0_236  = input(false, "", inline = "Level9", display = display.none)
value_neg_0_236 = input(-0.236, "", inline = "Level9", display = display.none, active = show_neg_0_236)
color_neg_0_236 = input(#f44336, "", inline = "Level9", display = display.none, active = show_neg_0_236)

show_neg_0_382  = input(false, "", inline = "Level9", display = display.none)
value_neg_0_382 = input(-0.382, "", inline = "Level9", display = display.none, active = show_neg_0_382)
color_neg_0_382 = input(#81c784, "", inline = "Level9", display = display.none, active = show_neg_0_382)

show_neg_0_618  = input(false, "", inline = "Level10", display = display.none)
value_neg_0_618 = input(-0.618, "", inline = "Level10", display = display.none, active = show_neg_0_618)
color_neg_0_618 = input(#009688, "", inline = "Level10", display = display.none, active = show_neg_0_618)

show_neg_0_65  = input(false, "", inline = "Level10", display = display.none)
value_neg_0_65 = input(-0.65, "", inline = "Level10", display = display.none, active = show_neg_0_65)
color_neg_0_65 = input(#009688, "", inline = "Level10", display = display.none, active = show_neg_0_65)


lineId0 = processLevel(show_neg_0_65, value_neg_0_65, color_neg_0_65, line(na))
lineId1 = processLevel(show_neg_0_618, value_neg_0_618, color_neg_0_618, lineId0)
lineId2 = processLevel(show_neg_0_382, value_neg_0_382, color_neg_0_382, lineId1)
lineId3 = processLevel(show_neg_0_236, value_neg_0_236, color_neg_0_236, lineId2)
lineId4 = processLevel(show_0, value_0, color_0, lineId3)
lineId5 = processLevel(show_0_236, value_0_236, color_0_236, lineId4)
lineId6 = processLevel(show_0_382, value_0_382, color_0_382, lineId5)
lineId7 = processLevel(show_0_5, value_0_5, color_0_5, lineId6)
lineId8 = processLevel(show_0_618, value_0_618, color_0_618, lineId7)
lineId9 = processLevel(show_0_65, value_0_65, color_0_65, lineId8)
lineId10 = processLevel(show_0_786, value_0_786, color_0_786, lineId9)
lineId11 = processLevel(show_1, value_1, color_1, lineId10)
lineId12 = processLevel(show_1_272, value_1_272, color_1_272, lineId11)
lineId13 = processLevel(show_1_414, value_1_414, color_1_414, lineId12)
lineId14 = processLevel(show_1_618, value_1_618, color_1_618, lineId13)
lineId15 = processLevel(show_1_65, value_1_65, color_1_65, lineId14)
lineId16 = processLevel(show_2_618, value_2_618, color_2_618, lineId15)
lineId17 = processLevel(show_2_65, value_2_65, color_2_65, lineId16)
lineId18 = processLevel(show_3_618, value_3_618, color_3_618, lineId17)
lineId19 = processLevel(show_3_65, value_3_65, color_3_65, lineId18)
lineId20 = processLevel(show_4_236, value_4_236, color_4_236, lineId19)
lineId21 = processLevel(show_4_618, value_4_618, color_4_618, lineId20)

Overview

The script calculates pivot points based on a user-defined depth setting and tracks significant swing points using dynamic chart points and arrays. It draws horizontal extension lines, price values, and ratio labels directly on the price chart. Inputs allow users to adjust depth sensitivity, line extensions, level toggles, custom ratio values, label formatting, and background transparency. Because the pivot arrays are evaluated and drawn on the latest bar, levels dynamically adjust as new price extremes develop.

Automatic pivot point detection based on customizable depth
Customizable Fibonacci extension level ratios and colors
Extendable line directions with left and right toggles
Configurable level value formatting, label positions, and transparency

Details

Published by

heyphat on GitHub

Type

Indicator, Pine Script v6

Draws

On the price chart

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

Signals can change on the live bar or after it closes (repainting)

File

test/pinescripts/auto-fix-ext.pine

Repository

github.com/heyphat/piner. See its other scripts in the library

Topics

backtestingindicatorspine-scriptpinescripttechnical-analysistradingtradingviewtypescript

Settings

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

Setting	Type	Default	Variable
Depth	`int`	`10`	`depth`
Reverse	`bool`	`false`	`reverse`
Extend Left \| Extend Right	`bool`	`false`	`extendLeft`
extendRight	`bool`	`true`	`extendRight`
Show Prices	`bool`	`true`	`prices`
Show Levels	`bool`	`true`	`levels`
levelsFormat	`string`	`Values`	`levelsFormat`
Labels Position	`string`	`Left`	`labelsPosition`
Background Transparency	`int`	`85`	`backgroundTransparency`
show_0	`bool`	`true`	`show_0`
value_0	`int`	`0`	`value_0`
color_0	`color`	`#787b86`	`color_0`

Show all 40 settings

Setting	Type	Default	Variable
show_0_236	`bool`	`true`	`show_0_236`
value_0_236	`float`	`0.236`	`value_0_236`
color_0_236	`color`	`#f44336`	`color_0_236`
show_0_382	`bool`	`true`	`show_0_382`
value_0_382	`float`	`0.382`	`value_0_382`
color_0_382	`color`	`#81c784`	`color_0_382`
show_0_5	`bool`	`true`	`show_0_5`
value_0_5	`float`	`0.5`	`value_0_5`
color_0_5	`color`	`#4caf50`	`color_0_5`
show_0_618	`bool`	`true`	`show_0_618`
value_0_618	`float`	`0.618`	`value_0_618`
color_0_618	`color`	`#009688`	`color_0_618`
show_0_65	`bool`	`false`	`show_0_65`
value_0_65	`float`	`0.65`	`value_0_65`
color_0_65	`color`	`#009688`	`color_0_65`
show_0_786	`bool`	`true`	`show_0_786`
value_0_786	`float`	`0.786`	`value_0_786`
color_0_786	`color`	`#64b5f6`	`color_0_786`
show_1	`bool`	`true`	`show_1`
value_1	`int`	`1`	`value_1`
color_1	`color`	`#787b86`	`color_1`
show_1_272	`bool`	`false`	`show_1_272`
value_1_272	`float`	`1.272`	`value_1_272`
color_1_272	`color`	`#81c784`	`color_1_272`
show_1_414	`bool`	`false`	`show_1_414`
value_1_414	`float`	`1.414`	`value_1_414`
color_1_414	`color`	`#f44336`	`color_1_414`
show_1_618	`bool`	`true`	`show_1_618`

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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