The "flow rate" of DAFs compares a given year's grantmaking total with its gift total, dividing grants by gifts. This metric may help capture the activity of donors who contribute to their DAF and grant from it that same year. High median DAF flow rates in every asset cohort suggest a high rate of overall grantmaking that keeps pace with fundraising.

More than one-third of FY19 Columbus Survey respondents reported DAF flow rates of over 100%, granting more from their DAFs than those funds brought in as gifts. (n=211)