Starlink Churn: The Single Most Underrated KPI in the Q1 Print
Starlink reported annualised churn of 4.1% in Q1 FY26 — well below cable and DSL benchmarks. Here is why this is the cleanest read on the Starlink moat.
Q1 FY26 churn
4.1% annualised
Cable industry benchmark
12–18%
DSL benchmark
20%+
Why churn beats sub growth as a KPI
Sub adds are noisy — affected by capacity, geography and marketing spend. Churn measures the retention quality of the installed base, which is the cleanest single read on whether customers actually value the product. Starlink reporting 4.1% annualised churn in Q1 — versus 12–18% for US cable broadband — is a quietly enormous result.
Low churn compounds with low capex per sub to give a customer lifetime value (LTV) figure that justifies aggressive growth spend. At 4% churn and $85/month gross profit, average customer LTV approaches $25,000 against $1,150 of acquisition cost — an LTV/CAC ratio few telecoms have ever printed.
Key takeaways
- Starlink churn at 4% is best-in-class telecom retention
- Combined with low CAC, LTV/CAC is in mid-20× territory — unusual
- Watch churn quarterly — any drift toward 6%+ would meaningfully reset the model
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