Capital41 Liquidity Sweep Simple

// Copyright (c) 2026 Capital41 | MIT License
// CAPITAL41 LIQUIDITY SWEEP SIMPLE

// What it does:
// - Detects liquidity sweeps where price breaks a recent swing level and closes
//   back inside the range with above-average volume.
// - Marks single sweeps and optional consecutive sweeps at similar levels.
// - Non-repainting: signals only after bar close.
//
// TradingView setup:
// 1) Open TradingView -> Pine Editor.
// 2) Paste this script, Save, and Add to chart.
// 3) Use 30m or 4h on BTC or US stocks.
// 4) Adjust inputs if you want more or fewer signals.
//
// Usage guide (30m/4h):
// - Long: bullish sweep near support or in a bullish HTF trend.
// - Short: bearish sweep near resistance or in a bearish HTF trend.
// - For more signals: lower Min volume ratio or Lookback bars.
// - For fewer signals: raise Min volume ratio or Lookback bars.



//@version=6
indicator("Capital41 Liquidity Sweep Simple", overlay = true, max_labels_count = 50)

// Inputs tuned for 30m-4H
lenHighLow       = input.int(20, "Lookback bars", minval = 2)
volLookback      = input.int(50, "Volume SMA length", minval = 5)
minVolRatio      = input.float(1.2, "Min volume ratio", minval = 1.0, maxval = 3.0)
trackConsecutive = input.bool(true, "Show high-prob sweeps")
maxBarsBetween   = input.int(10, "Max bars between sweeps", minval = 1, maxval = 100)

colorBull = color.new(color.lime, 0)
colorBear = color.new(color.red, 0)

// Reference levels
priorHigh = ta.highest(high[1], lenHighLow)
priorLow  = ta.lowest(low[1],  lenHighLow)

// Volume filter
volSma   = ta.sma(volume, volLookback)
volRatio = volSma > 0 ? volume / volSma : 0
highVol  = volRatio >= minVolRatio

// Sweep logic (confirmed close back inside range)
bullSweep = low < priorLow and close >= priorLow and highVol and barstate.isconfirmed
bearSweep = high > priorHigh and close <= priorHigh and highVol and barstate.isconfirmed

// Consecutive sweeps at similar level within a window
var int   consecBull = 0
var int   consecBear = 0
var float lastBullLevel = na
var float lastBearLevel = na
var int   lastBullBar = na
var int   lastBearBar = na


tolerance = close * 0.005
sameLevelBull  = not na(lastBullLevel) and math.abs(priorLow - lastBullLevel) <= tolerance
sameLevelBear  = not na(lastBearLevel) and math.abs(priorHigh - lastBearLevel) <= tolerance
withinBarsBull = not na(lastBullBar) and bar_index - lastBullBar <= maxBarsBetween
withinBarsBear = not na(lastBearBar) and bar_index - lastBearBar <= maxBarsBetween

if bullSweep
    if sameLevelBull and withinBarsBull
        consecBull += 1
    else
        consecBull := 1
    lastBullLevel := priorLow
    lastBullBar := bar_index

if bearSweep
    if sameLevelBear and withinBarsBear
        consecBear += 1
    else
        consecBear := 1
    lastBearLevel := priorHigh
    lastBearBar := bar_index

highProbBull = bullSweep and consecBull >= 2
highProbBear = bearSweep and consecBear >= 2

// Signals
plotshape(bullSweep and not highProbBull, title = "Bullish Sweep",
          style = shape.triangleup, location = location.belowbar,
          color = colorBull, size = size.tiny, text = "L")

plotshape(bearSweep and not highProbBear, title = "Bearish Sweep",
          style = shape.triangledown, location = location.abovebar,
          color = colorBear, size = size.tiny, text = "S")

plotshape(highProbBull and trackConsecutive, title = "High-Prob Bullish Sweep",
          style = shape.diamond, location = location.belowbar,
          color = colorBull, size = size.tiny, text = "L")

plotshape(highProbBear and trackConsecutive, title = "High-Prob Bearish Sweep",
          style = shape.diamond, location = location.abovebar,
          color = colorBear, size = size.tiny, text = "S")


// Alerts
alertcondition(bullSweep, title = "Bullish Sweep",
               message = "Liquidity Sweep: bullish sweep on {{ticker}} ({{interval}})")

alertcondition(bearSweep, title = "Bearish Sweep",
               message = "Liquidity Sweep: bearish sweep on {{ticker}} ({{interval}})")

alertcondition(highProbBull and trackConsecutive, title = "High-Prob Bullish Sweep",
               message = "Liquidity Sweep: high-prob bullish sweep on {{ticker}} ({{interval}})")

alertcondition(highProbBear and trackConsecutive, title = "High-Prob Bearish Sweep",
               message = "Liquidity Sweep: high-prob bearish sweep on {{ticker}} ({{interval}})")