An anonymous engagement from Magnum Radius’s existing portfolio. The client’s name remains confidential; the outcomes below reproduce the agency-published summary. Practical lessons are commentary, not additional claims about this client.
- Restored in 90 days
- LTV > CAC
- Blended CAC
- −42%
- Product line honestly retired
- 1
The business challenge
Aggressive paid growth, a CAC that had crossed LTV in two of three product lines, and a founder who had stopped believing the dashboards.
What changed in the marketing approach
Cohort-level unit economics, cohort-specific creative, killed one product line honestly, doubled down on the one that was actually profitable. Weekly reviews on cash, not enrolments.
Reported outcomes
- LTV > CAC — Restored in 90 days.
- −42% — Blended CAC.
- 1 — Product line honestly retired.
These outcomes belong to this engagement only. Where the summary states a period, it applies to that specific metric—not automatically to every result.
“They told us to stop selling something. That's when I knew they were on our side.”
What founders can learn from this case
Evaluate economics by product and cohort
Blended acquisition figures can hide a loss-making product. Cohort-level analysis makes it easier to see where acquisition, retention and contribution support each other—and where continuing to sell may be the wrong decision.
Keep CAC and LTV definitions consistent
LTV needs a stated horizon and a clear distinction between revenue and contribution. A lower CAC does not prove profitability when retention or delivery cost changes.
Evidence and interpretation limits
This public summary does not include underlying analytics exports, absolute baseline counts, a control group or an independent audit. It cannot establish how much of a change was caused by marketing alone. Do not infer revenue, profit, retention or market leadership where those measures are not explicitly reported.
Before applying the approach to your business, define the conversion event, comparison window, acquisition cost and attribution model. Your category, offer, starting point and sales process can produce different results.
Related digital marketing case studies
Start with your business problem.
Tell us what is not working, what you have tried and which outcome matters.
Discuss your marketing challenge →