Velocity Acceleration Convergence Divergence Indicator [CC]

// Copyright (c) 2019-present, Franklin Moormann (cheatcountry)
// Velocity Acceleration Convergence Divergence Indicator [CC] script may be freely distributed under the MIT license.
// ------------------------------------------------------------------------------------------------
// Original author:  cheatcountry
// Original title:   Velocity Acceleration Convergence Divergence Indicator [CC]
// Licence:          MIT (the header above is the original notice, kept verbatim)
// Pine version:     5
// 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
indicator("Velocity Acceleration Convergence Divergence Indicator [CC]", overlay=false)

requestSecurity(string _symbol, string _res, float _src, bool _repaints) =>
    repIndex = _repaints ? 0 : barstate.isrealtime ? 1 : 0
    resIndex = _repaints ? 0 : barstate.isrealtime ? 0 : 1
    result = _src[repIndex]

var GRP1 = "General Settings"
float inp = input(title='Source', defval=hlcc4, group=GRP1)
string res = input.timeframe(title="Resolution", defval="", group=GRP1)
int length = input.int(title="Length", defval=21, minval=2, maxval=60, step=1, group=GRP1)
int smoothLength = input.int(title="Smoothing Length", defval=5, minval=1, maxval=9, step=1, group=GRP1)
bool rep = input.bool(title="Allow Repainting?", defval=false, group=GRP1)
bool bar = input.bool(title="Allow Bar Color Change?", defval=true, group=GRP1)
float src = requestSecurity(syminfo.tickerid, res, inp, rep)

calculateVelocity(float _src, int _length) =>
    float velAccSum = 0
    for int i = 1 to _length
        velAccSum += (_src - nz(_src[i])) / i
    float velAccAvg = velAccSum / _length
float velocityAvg = ta.wma(calculateVelocity(src, length), smoothLength)
float accelerationAvg = calculateVelocity(velocityAvg, length)
float vacd = velocityAvg - accelerationAvg

hline(0)
float slo = vacd - 0
int sig = slo > 0 ? (slo > nz(slo[1]) ? 2 : 1) : slo < 0 ? (slo < nz(slo[1]) ? -2 : -1) : 0
alertcondition(ta.crossover(sig, 1), 'Strong Buy Signal', 'Strong Bullish Change Detected')
alertcondition(ta.crossunder(sig, -1), 'Strong Sell Signal', 'Strong Bearish Change Detected')
alertcondition(ta.crossover(sig, 0), 'Buy Signal', 'Bullish Change Detected')
alertcondition(ta.crossunder(sig, 0), 'Sell Signal', 'Bearish Change Detected')
alertcondition(ta.crossover(sig, 1) or ta.crossover(sig, 0), "All Buy Signals", "Any Bullish Change Detected")
alertcondition(ta.crossunder(sig, -1) or ta.crossunder(sig, 0), "All Sell Signals", "Any Bearish Change Detected")
color vacdColor = sig > 1 ? color.green : sig > 0 ? color.lime : sig < -1 ? color.maroon : sig < 0 ? color.red : na
barcolor(bar ? vacdColor : na)
plot(vacd, "Vacd", vacdColor, linewidth=2, style=plot.style_histogram)

This file is under the MIT License; it is a port of the original by cheatcountry, 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