//@version=5
indicator("TTM Squeeze", overlay=false)

squeezeLen = input.int(20, "Squeeze Length")
mult       = input.float(2.0, "StdDev Multiplier")

// Bollinger Bands
basis   = ta.sma(close, squeezeLen)
dev     = mult * ta.stdev(close, squeezeLen)
upperBB = basis + dev
lowerBB = basis - dev

// Keltner Channels
atr     = ta.atr(squeezeLen)
upperKC = basis + atr * 1.5
lowerKC = basis - atr * 1.5

// Squeeze condition
squeezeOn = (upperBB < upperKC) and (lowerBB > lowerKC)

// Momentum histogram
mom = ta.linreg(close - basis, squeezeLen, 0)

// Bigger squeeze dots
plot(squeezeOn ? 0 : na, style=plot.style_circles, color=color.red, linewidth=4, title="Squeeze On")
plot(not squeezeOn ? 0 : na, style=plot.style_circles, color=color.green, linewidth=4, title="Squeeze Off")

// Momentum histogram
plot(mom, style=plot.style_histogram, color=mom >= 0 ? color.lime : color.orange, title="Momentum")