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RAT v2 · project 21 of 23

LTV/CAC ≥3 holds only to ~70K users; at SOM it falls to 1.76× and a 17-month payback. The constraint is cheap-channel capacity, not budget.

Situation
The anchor segment is the growth point, but does its launch still scale economically when taken to the serviceable market
Task
Own the call on whether the anchor segment stays economically viable once the launch scales to the serviceable market
Action
Marginal-CAC curves by channel, cheap-first greedy allocation, blended LTV/CAC and payback vs scale, channel capacity
Result
LTV/CAC ≥3 holds only to ~70K users (31% of SOM); at SOM 225K it is 1.76× with a 17.0-month payback
Stack
Pythonpandas / NumPySciPy / Statsmodelsscikit-learnMatplotlib / Seabornuv + ruff
On this page
  1. Situation
  2. Task
  3. Actions
  4. Result
  5. Recommendations
  6. Documentation

Volta — Anchor Launch CAC at Scale

Situation

The 25–34 anchor is the growth point, but does the launch scale economically when taken to SOM.

Task

I owned the question of whether the anchor segment stays economically viable once the launch is scaled to the serviceable market.

Actions

  • Marginal-CAC curves by channel (saturation).
  • Cheap-first greedy allocation, blended LTV/CAC and payback vs scale.
  • Break-even scale, channel-mix and capacity analysis.

Result

  • The LTV/CAC ≥3 gate holds only to ≈ 70K users (31% of SOM).
  • At SOM (225K): LTV/CAC 1.76×, 17.0-month payback — both gates fail; the marginal SOM user costs €80.
  • The constraint is cheap-channel capacity: referral €18→61 (capacity 40K), paid social €58→368 (200K).

Recommendations

  • Don’t plan the anchor to SOM on a paid budget (hold).
  • Raise referral and in-app conversion (capacity + CAC), cap paid at scale.
  • Replan SOM around what cheap channels can carry.

Documentation

Charts

Source: github.com/NikitaBoyarkin/volta-banking — 22 projects; figures recomputed from the repo's own datasets (data/*.csv) via its analysis scripts. Funnel counts from data/volta_funnel_data.csv (10,000 users); A/B, retention, segmentation, churn, RFM, CLV, attribution, anomalies, spend, support, NPS, JTBD, unit economics, premium, KYC deep-dive, referral, assisted CAC, FX sourcing, premium offers, anchor CAC and dormant win-back follow the published project narrative (README + part pages).

Anchor launch: LTV/CAC vs scale

Blended LTV/CAC as the anchor 25–34 launch scales (cheap-first greedy allocation). The 3.0 gate holds only to ~70K users.

0 2 4 6 Blended LTV/CAC 10K — Blended LTV/CAC: 5 40K — Blended LTV/CAC: 3.5 50K — Blended LTV/CAC: 3.3 75K — Blended LTV/CAC: 2.94 120K — Blended LTV/CAC: 2.46 225K — Blended LTV/CAC: 1.76 10K 40K 50K 75K 120K 225K Launch scale, users LTV/CAC
Key takeaways
  • The LTV/CAC ≥3 gate holds only to ≈70K users; at SOM (225K) it falls to 1.76 with a 17.0-month payback.
  • The constraint is cheap-channel capacity, not budget: blended CAC rises €20.5 (10K) → €52.5 (SOM).

Anchor marginal CAC by channel

Marginal CAC range (€) and capacity (users) by acquisition channel for the anchor. Cheap-channel capacity runs out first.

0 100 200 300 400 Referral — CAC min: 17.98 17.98 In-app — CAC min: 29.9 29.9 Partner — CAC min: 48.55 48.55 Paid social — CAC min: 57.87 57.87 Assisted — CAC min: 119.32 119.32 Referral — CAC max: 60.93 60.93 In-app — CAC max: 83.04 83.04 Partner — CAC max: 133.76 133.76 Paid social — CAC max: 367.64 367.64 Assisted — CAC max: 266.86 266.86 Referral In-app Partner Paid social Assisted Channel Marginal CAC, € CAC min CAC max
Key takeaways
  • Referral is cheap (€18→61) but low-capacity (~40K); paid social gives volume (200K) but marginal CAC rises to €368.
  • Cheap-channel capacity (referral 40K + in-app 120K) is the constraint, not budget: assisted €119–267 at 20K capacity.

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