Tiny brands, big challenges: The limits of loyalty and the role of penetration in driving growth

• In some categories, tiny brands are numerous. • Tiny brands are volatile, frequently fail, and often exhibit loyalty deficits. • When tiny brands grow, this is mostly via penetration, challenging niche loyalty views. • Tiny brands should be managed like big brands, within resource limits. Tiny brands – those with <1 % market share – have been overlooked in marketing research. Consequently, we know little about their brand performance metrics or growth patterns. This study examines whether tiny brands exhibit niche-like excess loyalty, and compares their market performance over five years, focusing on changes in market share and buyer behaviour. Findings show that even stable tiny brands have generally low levels of loyalty, often lower than expected (deficit loyalty). When tiny brands grow, their sales gains come primarily from increased penetration rather than purchase frequency. This challenges the idea that tiny brands depend on niche loyalty strategies. Instead, it highlights the importance of broad customer acquisition, even for the tiniest of brands.