Fintech Unit Economics Tracker: CAC, Payback, and Margin
Headline metrics
Blended CAC decreased by 9%, but payback period remains above target in low-activity cohorts. Contribution margin improved in high-frequency users.
Interpretation
- Acquisition efficiency gains are not yet mirrored in activation quality.
- Revenue concentration risk remains high in top 15% of users.
- Support cost per active user declines significantly after month 2.
Strategic focus
Rebalance spend toward channels with superior month-2 activity rather than lowest top-of-funnel cost.