GLD and SLV's volatility index serve as an alternative to gold vs silver ratio. I identified a zone where once above, you are in a precious metals bear zone. Extremes have also marked important tops and bottoms for silver. This is now at a sweet spot for turn around!
One of the toughest charts to read. Sometimes the volatility spikes and silver bottoms, and other time the inverse. Ouff... Right now, I'm angling my analysis with contracting volatility as a jump platform from an uncrowded base.