The Maze: Discount grocers reach 94.6% of German households but only 70.0% of French households. That 24.6-point gap is substantial. The more revealing detail is the pace: France gained just 0.8 percentage points versus 2024, while several countries with much higher adoption gained faster. Europe's discount opportunity therefore splits into two questions: how many households buy, and how much business each household gives the format. A large pool of non-buyers does not automatically make recruitment easy.
France has the most room, but little momentum. H1 2026 penetration was 70.0%, the lowest of seven selected European markets. Even Great Britain, next in the ranking, reached 80.8%. France's 0.8-point increase leaves it well behind both the leading market and its nearest comparator. The remaining 30% of households are a potential audience, not a waiting list. Their absence does not tell a retailer whether the obstacle is access, assortment, habit or a competing supermarket doing the job well enough.
Higher adoption has not stopped others recruiting. Spain reached 82.4%, up 3.6 points versus 2024; Italy reached 86.1%, up 2.9; Great Britain rose 2.8 points and Portugal 2.3, to 84.5%. Switzerland stood at 88.2%, adding 1.1 points. All five already had greater reach than France, yet all gained more. Spain's advance was 4.5 times France's in percentage-point terms. That is an adoption comparison, not a revenue-growth multiple. It challenges the easy assumption that the lowest-penetration market should be the easiest place to expand.
Germany faces a different growth problem. At 94.6%, down 0.3 points, discount already serves roughly 19 households in 20. NIQ's household data leave little numerical headroom for additional reach. That makes purchases by existing customers more consequential: more visits, more occasions or more spend per visit. The small reach decline cannot establish that sales fell. Conversely, a penetration gain cannot show that a retailer earned enough from new shoppers to cover the cost of acquiring them.
The French ceiling remains a hypothesis. Retail observer Olivier Dauvers argues the format may be approaching its domestic limit; visible responses dispute that reading. The measured result is narrower: France has lower reach and slower recent recruitment than most peers. Penetration counts purchasing households, not their share of grocery spending. Without visit frequency, spend per buyer, chain coverage and consistent local catchment evidence, neither “saturated” nor “ready to boom” follows. A customer can already use a discounter and still leave most shopping missions elsewhere.
Why it matters: A rollout plan needs a diagnosis before a store target. In France, test what keeps non-buyers away and whether changing the offer converts them profitably. In Germany, test how to win more of existing customers' shopping. In both, track household reach alongside visits and spending per buyer. A channel can recruit without winning the main weekly shop, or grow sales without adding many households. The useful question is which of those mechanisms a new investment actually improves.
Sources: Éditions Dauvers / NIQ | Daniel Ducrocq, NIQ | Source discussion
