The largest UK altnets are now all at or close to EBITDA positive, but still heavily cashflow negative even pre-interest costs and with paused builds, due to various below-the-line cash costs requiring continuous funding, with EBITDA margins of as much as 35+% required to actually be cashflow breakeven
Altnet economics are still challenging even if debts are fully written off, with a payback of more than 5 years on customer acquisition and connection costs alone
The consolidation endgame is increasingly imminent, with the outcome likely to be a mix of CityFibre/VMO2 acquisitions, stand-alone niche players continuing, and abandoned assets, with the outcome for the rest of the sector more benign under any scenario than current trends
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