Definition
Annual Transacting Users – A super-app/e-commerce engagement metric counting the number of unique users who completed at least one transaction anywhere in the platform's ecosystem over the trailing twelve months (LTM), as distinct from MTU», which uses a one-month window. Because the window is a full year, LTM ATU moves more slowly than MTU and smooths out seasonality, but it also means a company deliberately shedding low-value users (via reduced incentives) shows up as a shrinking LTM ATU for several consecutive quarters even after the underlying monthly user count has already stabilized, since a user churned a year ago is still in the trailing-twelve-month count until that month finally rolls off. Found In: Operating metrics disclosure (not a financial-statement line item)