Help porting Volume Impact indicator to ToS

Risto Benji

New member
Hey guys, not new to the site but just registered. This site has been a great resource as I have been lurking, much thanks to those who contribute to its success. As the title suggests, I'm wondering if anyone with knowledge of Tradingview code can port this indicator...... Thanks in advance.

//Written by Umur Ozkul
study(title="Volume Impact", shorttitle="UO_VI")
TrigLen = input(7, minval=1)
FastX = input(34, minval=1)
SlowX = input(55, minval=1)
hline(0, color=gray, linestyle=line)
xTrend = iff(hlc3 > hlc3[1], volume * 100, -volume * 100)
xFast = ema(xTrend, FastX)
xSlow = ema(xTrend, SlowX)
xKVO = xFast - xSlow
xTrigger = ema(xKVO, TrigLen)

p = close - close[1]
pTrigger = ema(p, TrigLen)

volumeImpact = (xKVO - xTrigger)*1.2


xDirection = xTrigger - xTrigger[1]
pDirection = pTrigger - pTrigger[1]


suggestion = (volumeImpact - volumeImpact[1]) > 0 ? buyit : sellit

impactColor= paint==buyit ? green : paint==sellit ? red : gray
plot(volumeImpact, color=impactColor, style=area, title="KVO")

triggerColor = xTrigger>=0 ? green : red
plot(xTrigger, linewidth=4, color=triggerColor, title="Trigger")

kvoColor = xKVO >= 0 ? green : red
impactFlipColor = volumeImpact >= 0 ? green : red

plot(xKVO, title="KVO")
priceColorOpt = input(title="Bar Color", defval="Impact>0", options=["Default", "KVO,Impact Direction", "Impact>0", "Trigger>0", "KVO>0"])
priceColor0 = priceColorOpt == "Default" ? na : priceColorOpt == "KVO,Impact Direction" ? impactColor :  priceColorOpt=="Impact>0"? impactFlipColor : priceColorOpt == "Trigger>0" ? triggerColor : kvoColor
priceColor = priceColor0 == green ? lime : orange
//priceColor = close > open and priceColor0 == green or close < open and priceColor0 == red ? priceColor1 : na


Link to the indicator details
Last edited by a moderator:

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@Risto Benji @JohnsonM Rough conversion but should be the same as the one from TradingView.

# Volume Impact
# Assembled by BenTen at
# Converted from

declare lower;

input TrigLen = 7;
input FastX = 34;
input SlowX = 55;

def xTrend = if(hlc3 > hlc3[1], volume* 100, -volume* 100);
def xFast = expAverage(xTrend, FastX);
def xSlow = expAverage(xTrend, SlowX);
def xKVO = xFast - xSlow;
def xTrigger = expAverage(xKVO, TrigLen);

def p = close - close[1];
def pTrigger = expAverage(p, TrigLen);

def volumeImpact = (xKVO - xTrigger) * 1.2;

def xDirection = xTrigger - xTrigger[1];
def pDirection = pTrigger - pTrigger[1];

def buyit = 1;
def sellit = -1;

def suggestion = if (volumeImpact - volumeImpact[1]) > 0 then buyit else sellit;

def paint = suggestion;

plot KVO = volumeImpact;
KVO.AssignValueColor(if paint == buyit then else if paint == sellit then else color.gray);
plot Trigger = xTrigger;
Trigger.AssignValueColor(if xTrigger>=0 then else;
plot c = xKVO;
Looks interesting. Can this study be modified so that it only shows the buy/sell signals as arrows on the chart instead of using the lower study? @BenTen

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