From a total portfolio perspective, global asset owners and allocators are increasing wary about the overall portfolio sensitivity to interest rate changes and ultimately risk diversification. The concept of “equity duration” was raised long ago and has been subject to debate for decades. While some absolute calculations fail to work in today’s markets, we believe the economic and financial intuition beneath still hold. In this working paper, we took a renewed approach to analyze the relationships from a relative perspective and with an overarching objective of total portfolio risks in mind.