Percentage Price Oscillator

// Copyright (c) 2018-present, Alex Orekhov (everget)
// Percentage Price Oscillator script may be freely distributed under the MIT license.
// ------------------------------------------------------------------------------------------------
// Original author:  everget
// Original title:   Percentage Price Oscillator
// Licence:          MIT (the header above is the original notice, kept verbatim)
// Pine version:     3
// Fetched:          2026-10-12
// Ported to FloScript by FloSignals; modifications under MPL-2.0.
// Converter:        @flosignals/floscript 0.1.0, strict mode, score 100/100
// ------------------------------------------------------------------------------------------------
//@floscript=1
//@version=5
// Converted by the FloScript converter from a Pine-compatible v3 source.
indicator("Percentage Price Oscillator", shorttitle="PPO")

fastLength = input.int(title="Fast Length", defval=12)
slowLength = input.int(title="Slow Length", defval=26)
signalLength = input.int(title="Signal Length", defval=9)
src = input.source(title="Source", defval=close)
showHistogram = input.bool(title="Show Histogram ?", defval=true)
highlightCrossovers = input.bool(title="Highlight PPO/Signal Crossovers ?", defval=true)
highlightZeroCrossovers = input.bool(title="Highlight Zero Line Crossovers ?", defval=false)
applyFilling = input.bool(title="Apply Ribbon Filling ?", defval=false)

ppo = 100 * (ta.ema(src, fastLength) - ta.ema(src, slowLength)) / ta.ema(src, slowLength)
signal = ta.ema(ppo, signalLength)

hist = ppo - signal
histColor = hist >= 0 ? (hist[1] < hist ? #26A69A : #B2DFDB) : hist[1] < hist ? #FFCDD2 : #EF5350

plot(showHistogram ? hist : na, title="Histogram", style=plot.style_columns, color=color.new(histColor, 0))
hline(0, title="Zero Line", linestyle=hline.style_dotted)

trendColor = ppo > signal ? #0ebb23 : color.red

ppoColor = applyFilling ? trendColor : #0094ff
signalColor = applyFilling ? trendColor : #ff6a00

ppoPlot = plot(ppo, title="PPO", color=color.new(ppoColor, 0))
signalPlot = plot(signal, title="Signal", color=color.new(signalColor, 0))

transparent = color.new(color.white, 100)

fillColor = applyFilling ? trendColor : transparent
fill(ppoPlot, signalPlot, color=color.new(fillColor, 70))

zeroCrossBgColor = highlightZeroCrossovers ? (ppo > 0 ? color.green : color.red) : transparent
bgcolor(color.new(zeroCrossBgColor, 90))

plotshape(highlightCrossovers and ta.crossover(ppo, signal) ? ppo : na, title="Crossover", location=location.absolute, style=shape.circle, size=size.tiny, color=color.new(color.green, 0))
plotshape(highlightCrossovers and ta.crossunder(ppo, signal) ? ppo : na, title="Crossunder", location=location.absolute, style=shape.circle, size=size.tiny, color=color.new(color.red, 0))

This file is under the MIT License; it is a port of the original by everget, with the original licence header kept and the changes made for FloScript noted in the file.

• v22026-10-14

  Library refresh 2026-10-14

• v12026-10-12

  Library refresh 2026-10-12