Although, indicators are supposed to be lagging but divergence in indicators gives us a leading signal. I have often found them to be successful but they appear rarely.
Generally, I buy/sell whenever see it and sell/buy when the indicator goes to oversold/overbought region.
In the money call Iv is rising and for in the money puts it is falling.Generally this happen when markets are about to make bottom and reverse.First time seeing this happening near top.lol.