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Top 10 concentration measures how much of the token supply is held by the ten largest tracked holders. It is a fast proxy for how concentrated or distributed the supply looks.
If too much supply is controlled by a small number of wallets, the chart can be vulnerable to coordinated exits, whale dominance, or an illusion of healthy participation. A lower number is not automatically perfect, but very high concentration is a major warning sign.
Healthier launches usually show better spread over time. If the top 10 wallets dominate supply too heavily, the structure score should suffer, even if short-term momentum looks exciting.
Quacklington uses top-holder concentration as part of Structure, alongside Liq/FDV and other holder-distribution signals.