This script attempts to automatically identify the correct $VIX index for the underlying symbol. If one is not found, it will default to $VIX. It also has a mode for comparing the $VIX against the CBOE 3-Month Volatility Index as a ratio. In ratio mode, you can identify periods when trader sentiment has turned extremely bearish. This can be identified when the ratio is above 1, which happens when the $VIX futures contracts enter a period of backwardation.
The default settings have been carefully selected to work optimally. Explore all the features available in TickSurfers VIX by going to the indicator's input settings and selecting the modes and settings your prefer.