For all Risk fields, the Grade is based on an algorithmic assessment of Cost at Risk for a given plan. In other words, the Risk grades assess the degree to which the Plan is funding cost adjusted Risk and if the resources allocated toward projects are being expended for high or low risk endeavors. The optimal portfolio aims to spend all the resources on the lowest risk projects which would represent an A grade. When there are multiple Risk fields, the overall Risk grade is the average across all fields with equal weighting.
The associated Risk graphs provide a visual representation of the risk profile of a given plan. The example on the left represents a plan that funds higher risk projects (D Risk grade) and the example on the right below represents a Plan that is lower risk with all projects in the Good to Very Good ranges resulting in a A Risk Grade.