{"chart":{"id":"holder-concentration","slug":"holder-concentration","title":"What holds wrapped BTC","question":"Is tokenized BTC being used, or is it sitting still?","category":"custody","source":"Onchain balances and contract labels — Onchain BTC Research","dataQuality":"live","methodology":"/methodology"},"answer":"The largest share of wrapped BTC balances by holder type is Lending markets at 45.3%, followed by Idle wallet balances at 34.6%. The three largest account for 89.9%.","dataAsOf":"2026-09-26","resolution":"as-plotted","unit":"percent","dimension":{"id":"bucket","label":"Holder type","kind":"category"},"series":[{"id":"lending","label":"Lending markets","colorToken":"data-lending","points":[{"x":"Share of supply","y":45.3}]},{"id":"idle","label":"Idle wallet balances","colorToken":"data-idle","points":[{"x":"Share of supply","y":34.6}]},{"id":"custody","label":"Custody, vaults & exchanges","colorToken":"data-custody","points":[{"x":"Share of supply","y":2.9}]},{"id":"bridge","label":"Bridge escrow","colorToken":"data-bridge","points":[{"x":"Share of supply","y":4.7}]},{"id":"dex","label":"DEX liquidity","colorToken":"data-dex","points":[{"x":"Share of supply","y":2.5}]},{"id":"other","label":"Other contracts","colorToken":"data-other","points":[{"x":"Share of supply","y":10}]}]}