VIX % Contango

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// ©aeromircorp
// VIX % Contango - VIX CBOE-VX1!
//@version=5

indicator("VIX % Contango", overlay=false)

threshold = input.float(3.0, "Threshold")

inp = input(close)

VIX1 = request.security("VX1!", "", inp)
VIX2 = request.security("VX2!", "", inp)

oscillator = 100*(VIX2-VIX1)/VIX1

var plotcolor     = color.green

if (oscillator > 3.0)
    plotcolor := color.green
else if (oscillator >= 0.0)
    plotcolor := color.orange
else
    plotcolor := color.red

plot(oscillator, title="VIX % Contango", color=plotcolor, linewidth=2)

hline(0, "Center", color=color.gray, linestyle=hline.style_dotted)
hline(threshold, "", color=color.orange, linestyle=hline.style_dashed)