Theta weight is the name I gave to a metric that measures the cost per dollar of daily decay. The goal of theta weight is to ensure optimal In other words, it is the average amount of required to hold $1 of It is calculated by dividing the total capital requirement of a position or portfolio by the total theta.
Theta-weight = (Capital Requirement) ÷ (Theta)
I use this as an experimental management tool. I like to keep my average portfolio theta-weight between $300-500 per theta. Too low could mean greater risk; too high means I am not getting paid fast enough for the amount of capital I have at use.