Author Message:

Background

The large funds or banker fund are often referred to as Whale. Whale can have a significant impact on the price movements in various markets, especially in cryptocurrency . Therefore, how to monitor Whale trends is of great significance both in terms of fundamentals and technical aspects.

Function

L3 Banker Fund Flow Trend Oscillator can give you a model of complete banker fund flow operation in cycles. Although the script is not so complicated, it is comprehensive to disclose the price trend. That is the reason why I list this as Level 3. Each cycle of banker fund flow may have 5 steps in max as entry, increase position, decrease position, exit, and weak rebound for exit.

Key Signal

1. banker fund entry with blue candle

2. banker increase position with green candle

3. banker decrease position with white candle

4. banker fund exit/quit with red candle

5. banker fund weak rebound with pink candle

Pros and Cons

Pros:

1. Model banker fund behavior in complete cycles

2. Overbought and oversold can be directly observed due to oscillator nature

3. the transition points are clear for entry or exit

Cons:

1. Simple modelling, no further complex behaviors can be disclosed

2. trade by trend following the banker fund, it is still under the trend analysis prerequisite

**CODE - Added divergences and plot style - 06/2024**

CSS:

```
#// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
#// © blackcat1402
#study("[blackcat] L3 Banker Fund Flow Trend Oscillator", overlay=false)
# Converted and mod by Sam4Cok@Samer800 - 02/2023
# Update - added option for MTF - 02/2024
# updated - Added plot option and Divergences - 06/2024
declare lower;
#//functions
input BarColor = no;
input plotStyle = {Default "Candles", "Lines"};
input showSignalLine = yes;
input timeframe = {default "Chart", "Custom"};
input customTimeframe = AggregationPeriod.FIFTEEN_MIN;
input SourceType = {"High/Low",default "Open/Close"};
input smoothingType = AverageType.EXPONENTIAL;
input SmoothingLength = 13;
input upperThreshold = 75;
input lowerThreshold = 25;
def na = Double.NaN;
def last = IsNaN(close);
def can = plotStyle==plotStyle."Candles";
def tf = customTimeframe;
def c;
def h;
def l;
def o;
def typ;
switch (timeframe) {
case "Custom" :
c = close(Period = tf);
h = high(Period = tf);
l = low(Period = tf);
o = open(Period = tf);
typ = (2 * close(Period = tf) + high(Period = tf) + low(Period = tf) + open(Period = tf)) / 5;
default :
c = close;
h = high;
l = low;
o = open;
typ = (2 * close + high + low + open) / 5;
}
#//define typical price for banker fund
def hilo = SourceType == SourceType."High/Low";
def srcHi = if hilo then h else Max(o, c);
def srcLo = if hilo then l else Min(o, c);
#xrf(values, length) =>
script xrf {
input values = close;
input length = 34;
def r_val = fold i = 0 to length + 1 with p=Double.NaN do
if (IsNaN(p) or !IsNaN(values[i])) then values[i] else p;
plot out = if length >= 1 then r_val else Double.NaN;
}
#xsa(src,len,wei) =>
script xsa {
input src = close;
input len = 5;
input wei = 1;
def sumf = CompoundValue(1, sumf[1] - src[len] + src , src);
def ma = if IsNaN(src[len]) then Double.NaN else sumf / len;
def out = CompoundValue(1, (src * wei + out[1] * (len - wei)) / len, ma);
plot return = out;
}
def hh = Highest(h, 27);
def ll = Lowest(l, 27);
def wmCal = (c - ll) / (hh - ll) * 100;
def xsaWM5 = xsa(wmCal, 5, 1);
def xsaWM3 = xsa(xsaWM5, 3, 1);
#//set up a simple model of banker fund flow trend
def fundtrend = (3 * xsaWM5 - 2 * xsaWM3 - 50) * 1.032 + 50;
#//lowest low with mid term fib # 34
def lol = Lowest(srcLo, 34);
#//highest high with mid term fib # 34
def hoh = Highest(srcHi, 34);
#//define banker fund flow bull bear line
def bullbear = (typ - lol) / (hoh - lol) * 100;
def bullbearline = MovingAverage(smoothingType, bullbear, SmoothingLength);
#//define banker entry signal
def bankerentry = (fundtrend Crosses Above bullbearline) and bullbearline < lowerThreshold;
def bankerExit = (fundtrend Crosses Below bullbearline) and bullbearline > upperThreshold;
#//banker increase position with green candle
def xrf1 = xrf(fundtrend * 0.95, 1);
def UpCandle = if last or !can then na else fundtrend > bullbearline;
def WeakUp = if last or !can then na else fundtrend < xrf1;
def DnCandle = if last or !can then na else fundtrend < bullbearline;
def WeakDn = if last or !can then na else fundtrend < bullbearline and fundtrend > xrf1;
#-- clouds
def weak = !can and fundtrend < xrf1;
AddCloud(if weak or weak[1] then fundtrend else na, bullbearline, Color.DARK_GREEN, Color.RED, yes);
AddCloud(if can then na else fundtrend, bullbearline, Color.GREEN, Color.DARK_RED, yes);
# Plot the new Chart
#//banker fund entry with yellow candle
def condUp = bankerentry and !bankerentry[1];
def condDn = bankerExit and !bankerExit[1];
plot SigUp = if !showSignalLine then na else if condUp then 15 else 0;
plot SigDn = if !showSignalLine then na else if condDn then 85 else 100;
SigUp.AssignValueColor(if condUp or condUp[1] then Color.YELLOW else CreateColor(98, 98, 0));
SigDn.AssignValueColor(if condDn or condDn[1] then Color.MAGENTA else CreateColor(98, 0, 98));
AddChart(high = if UpCandle then bullbearline else na , low = fundtrend , open = fundtrend, close = bullbearline,
type = ChartType.CANDLE, growcolor = CreateColor(7, 205, 15));
AddChart(high = if WeakUp then bullbearline else na , low = fundtrend , open = fundtrend, close = bullbearline,
type = ChartType.CANDLE, growcolor = Color.LIGHT_GREEN); #CreateColor(188, 245, 188));
AddChart(high = if DnCandle then bullbearline else na , low = fundtrend , open = bullbearline, close = fundtrend,
type = ChartType.CANDLE, growcolor = Color.RED);
AddChart(high = if WeakDn then bullbearline else na , low = fundtrend , open = bullbearline, close = fundtrend,
type = ChartType.CANDLE, growcolor = Color.PINK);
#/overbought and oversold threshold lines
def h1 = if last then na else 80;
def h2 = if last then na else 20;
def h3 = 10;
def h4 = 90;
plot h5 = if last then na else 50;
h5.SetDefaultColor(Color.DARK_GRAY);
AddCloud(h2, h3, CreateColor(117, 117, 0));
AddCloud(h4, h1, Color.PLUM);
#-- bar Color
def col = if isNaN(fundtrend) then col[1] else
if fundtrend > 100 then 255 else if fundtrend<0 then 0 else fundtrend * 2.55;
AssignPriceColor(if !BarColor then Color.CURRENT else
if bankerentry then Color.CYAN else
if bankerExit then Color.MAGENTA else CreateColor(255 - col, col, 0));
#----Div-----------
input ShowLastDivLines = yes;
input DivBull = yes; # "Plot Bullish"
input DivBear = yes; # "Plot Bearish"
input PivotLookbackRight = 5; # "Pivot Lookback Right"
input PivotLookbackLeft = 10; # "Pivot Lookback Left"
input MaxLookback = 60; # "Max of Lookback Range"
input MinLookback = 5; # "Min of Lookback Range"
def divSrc = fundtrend;
def maxx = Max(fundtrend, bullbearline);
def minn = Min(fundtrend, bullbearline);
script FindPivots {
input dat = close; # default data or study being evaluated
input HL = 0; # default high or low pivot designation, -1 low, +1 high
input lbL = 5; # default Pivot Lookback Left
input lbR = 1; # default Pivot Lookback Right
##############
def _nan; # used for non-number returns
def _BN; # the current barnumber
def _VStop; # confirms that the lookforward period continues the pivot trend
def _V; # the Value at the actual pivot point
##############
_BN = BarNumber();
_nan = Double.NaN;
_VStop = if !isNaN(dat) and lbr > 0 and lbl > 0 then
fold a = 1 to lbR + 1 with b=1 while b do
if HL > 0 then dat > GetValue(dat,-a) else dat < GetValue(dat,-a) else _nan;
if (HL > 0) {
_V = if _BN > lbL + 1 and dat == Highest(dat, lbL + 1) and _VStop
then dat else _nan;
} else {
_V = if _BN > lbL + 1 and dat == Lowest(dat, lbL + 1) and _VStop
then dat else _nan;
}
plot result = if !IsNaN(_V) and _VStop then _V else _nan;
}
#_inRange(cond) =>
script _inRange {
input cond = yes;
input rangeUpper = 60;
input rangeLower = 5;
def bars = if cond then 0 else bars[1] + 1;
def inrange = (rangeLower <= bars) and (bars <= rangeUpper);
plot retrun = inRange;
}
def pl_ = findpivots(divSrc,-1, PivotLookbackLeft, PivotLookbackRight);
def ph_ = findpivots(divSrc, 1, PivotLookbackLeft, PivotLookbackRight);
def pl = !isNaN(pl_);
def ph = !isNaN(ph_);
def pll = lowest(divSrc,PivotLookbackLeft +1);
def phh = highest(divSrc,PivotLookbackLeft+1);
def sll = lowest(l, PivotLookbackLeft +1);
def shh = highest(h, PivotLookbackLeft+1);
#-- Pvt Low
def plStart = if pl then yes else plStart[1];
def plFound = if (plStart and pl) then 1 else 0;
def vlFound1 = if plFound then divSrc else vlFound1[1];
def vlFound_ = if vlFound1!=vlFound1[1] then vlFound1[1] else vlFound_[1];
def vlFound = if !vlFound_ then pll else vlFound_;
def plPrice1 = if plFound then l else plPrice1[1];
def plPrice_ = if plPrice1!=plPrice1[1] then plPrice1[1] else plPrice_[1];
def plPrice = if !plPrice_ then sll else plPrice_;
#-- Pvt High
def phStart = if ph then yes else phStart[1];
def phFound = if (phStart and ph) then 1 else 0;
def vhFound1 = if phFound then divSrc else vhFound1[1];
def vhFound_ = if vhFound1!=vhFound1[1] then vhFound1[1] else vhFound_[1];
def vhFound = if !vhFound_ then phh else vhFound_;
def phPrice1 = if phFound then h else phPrice1[1];
def phPrice_ = if phPrice1!=phPrice1[1] then phPrice1[1] else phPrice_[1];
def phPrice = if !phPrice_ then shh else phPrice_;
#// Regular Bullish
def inRangePl = _inRange(plFound[1],MaxLookback,MinLookback);
def oscHL = divSrc > vlFound and inRangePl;
def priceLL = l < plPrice and divSrc <= 40;
def bullCond = plFound and oscHL and priceLL;
#// Regular Bearish
def inRangePh = _inRange(phFound[1],MaxLookback,MinLookback);
def oscLH = divSrc < vhFound and inRangePh;
def priceHH = h > phPrice and divSrc >= 60;
def bearCond = phFound and oscLH and priceHH;
#------ Bubbles
def bullBub = DivBull and bullCond;
def bearBub = DivBear and bearCond;
addchartbubble(bullBub, minn, "R", Color.CYAN, no);
addchartbubble(bearBub, maxx, "R", CreateColor(176,39,176), yes);
##### Lines
def bar = BarNumber();
#-- Bear Line
def lastPhBar = if ph then bar else lastPhBar[1];
def prePhBar = if lastPhBar!=lastPhBar[1] then lastPhBar[1] else prePhBar[1];
def priorPHBar = if bearCond then prePhBar else priorPHBar[1];
#-- Bull Line
def lastPlBar = if pl then bar else lastPlBar[1];
def prePlBar = if lastPlBar!=lastPlBar[1] then lastPlBar[1] else prePlBar[1];
def priorPLBar = if bullCond then prePlBar else priorPLBar[1];
def lastBullBar = if bullCond then bar else lastBullBar[1];
def lastBearBar = if bearCond then bar else lastBearBar[1];
def hiStart = bar == HighestAll(priorPHBar);
def hiEnd = bar == HighestAll(lastBearBar);
def loStart = bar == HighestAll(priorPLBar);
def loEnd = bar == HighestAll(lastBullBar);
def pivotHigh = if hiStart then maxx else if hiEnd then maxx else na;#if HighPivots then bullbearline else na;
def pivotLow = if loStart then minn else if loEnd then minn else na;
plot PlotHline = if ShowLastDivLines then pivotHigh else na;
PlotHline.EnableApproximation();
PlotHline.SetDefaultColor(Color.WHITE);
PlotHline.SetPaintingStrategy(PaintingStrategy.LINE_VS_POINTS);
plot PlotLline = if ShowLastDivLines then pivotLow else na;
PlotLline.EnableApproximation();
PlotLline.SetDefaultColor(Color.CYAN);
PlotLline.SetPaintingStrategy(PaintingStrategy.LINE_VS_POINTS);
#---- END CODE
```

CSS:

```
#// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
#// © blackcat1402
#study("[blackcat] L3 Banker Fund Flow Trend Oscillator", overlay=false)
# Converted and mod by Sam4Cok@Samer800 - 02/2023
declare lower;
#//functions
input BarColor = yes;
input SmoothingLength = 13;
def na = Double.NaN;
def last = isNaN(close[1]);
#xrf(values, length) =>
script xrf {
input values = close;
input length = 34;
def r_val;# = float(na)
r_val = if length >= 1 then
fold i = 0 to length +1 with p=values do
if IsNaN(p) or !IsNaN(values[i]) then values[i] else p else Double.NaN;
plot out = r_val;
}
#xsa(src,len,wei) =>
script xsa {
input src = close;
input len = 5;
input wei = 1;
def sumf;# = 0.0
def ma;# = 0.0
def out;# = 0.0
sumf = CompoundValue(1, sumf[1] - src[len] + src , src);
ma = if IsNaN(src[len]) then Double.NaN else sumf / len;
out = if IsNaN(out[1]) then ma else (src * wei + out[1] * (len - wei)) / len;
plot return = out;
}
def wmCal = (close - Lowest(low, 27)) / (Highest(high, 27) - Lowest(low, 27)) * 100;
#//set up a simple model of banker fund flow trend
def fundtrend = (3 * xsa(wmCal, 5, 1) - 2 * xsa(xsa(wmCal, 5, 1), 3, 1) - 50) * 1.032 + 50;
#//define typical price for banker fund
def typ = (2 * close + high + low + open) / 5;
#//lowest low with mid term fib # 34
def lol = Lowest(low, 34);
#//highest high with mid term fib # 34
def hoh = Highest(high, 34);
#//define banker fund flow bull bear line
def bullbear = (typ - lol) / (hoh - lol) * 100;
def bullbearline = ExpAverage(bullbear, SmoothingLength);
#//define banker entry signal
def bankerentry = Crosses(fundtrend, bullbearline, CrossingDirection.ABOVE) and bullbearline < 25;
#//banker increase position with green candle
def UpCandle = fundtrend > bullbearline;
def WeakUp = fundtrend < (xrf(fundtrend * 0.95, 1));
def DnCandle = fundtrend < bullbearline;
def WeakDn = fundtrend < bullbearline and fundtrend > (xrf(fundtrend * 0.95, 1));
# Plot the new Chart
#//banker fund entry with yellow candle
AddChart(high = if bankerentry then 100 else na, low = 0 , open = 100, close = 0,
type = ChartType.CANDLE, growcolor = CreateColor(26, 70, 85));
AddChart(high = if UpCandle then bullbearline else na , low = fundtrend , open = fundtrend, close = bullbearline,
type = ChartType.CANDLE, growcolor = CreateColor(7,205,15));
AddChart(high = if WeakUp then bullbearline else na , low = fundtrend , open = fundtrend, close = bullbearline,
type = ChartType.CANDLE, growcolor = CreateColor(188,245,188));
AddChart(high = if DnCandle then bullbearline else na , low = fundtrend , open = bullbearline, close = fundtrend,
type = ChartType.CANDLE, growcolor = Color.RED);
AddChart(high = if WeakDn then bullbearline else na , low = fundtrend , open = bullbearline, close = fundtrend,
type = ChartType.CANDLE, growcolor = Color.PINK);
#/overbought and oversold threshold lines
def h1 = if last then na else 80;
def h2 = if last then na else 20;
def h3 = 10;
def h4 = 90;
plot h5 = if last then na else 50;
h5.SetDefaultColor(Color.DARK_GRAY);
AddCloud(h2, h3, CreateColor(157,157,0));#color=color.yellow,transp=70)
AddCloud(h4, h1, CreateColor(157,0 ,157));#=color.fuchsia,transp=70)
AssignPriceColor(if !BarColor then Color.CURRENT else
if bankerentry then Color.CYAN else
if WeakDn then Color.DARK_RED else
if DnCandle then Color.RED else
if WeakUp then Color.DARK_GREEN else
if UpCandle then Color.GREEN else Color.CURRENT);
#---- END CODE
```

Last edited: