Spreads CCC/BBB/AAA vs Treasury 10Y

//version=5
indicator("Spreads CCC/BBB/AAA vs Treasury 10Y", overlay=false)

// Tickes de ejemplo (debes reemplazar con los que tengas disponibles en TradingView)
ccc = request.security("XCCC", "D", close) // High Yield CCC
bbb = request.security("LQD", "D", close) // Investment Grade BBB
aaa = request.security("QLTA", "D", close) // AAA
treasury = request.security("US10Y", "D", close) // US Treasury 10Y

// Cálculo del spread (yield bono - yield Treasury)
spread_ccc = ccc - treasury
spread_bbb = bbb - treasury
spread_aaa = aaa - treasury

// Umbral para alerta de riesgo
umbral = input.float(2.0, "Umbral spread (%)")

// Plot de los spreads
plot(spread_ccc, color=color.red, title="Spread CCC")
plot(spread_bbb, color=color.orange, title="Spread BBB")
plot(spread_aaa, color=color.green, title="Spread AAA")

// Señal visual cuando el spread supera el umbral
plotshape(spread_ccc > umbral, title="Alerta CCC", color=color.red, style=shape.triangledown, location=location.abovebar, size=size.tiny)
plotshape(spread_bbb > umbral, title="Alerta BBB", color=color.orange, style=shape.triangledown, location=location.abovebar, size=size.tiny)
plotshape(spread_aaa > umbral, title="Alerta AAA", color=color.green, style=shape.triangledown, location=location.abovebar, size=size.tiny)