UTXO Age Bands segments the entire active supply into cohorts based on how long each unspent transaction output has remained dormant since its last on-chain movement, displaying the total value of UTXOs last moved within each specified time window - from outputs moved within hours to those dormant for multiple years.
Each band's relative size and movement over time reveals the behavioral patterns of different holder cohorts simultaneously. When older age bands expand, supply is maturing in place - reflecting broad-based long-term holding and a reduction in circulating supply available for near-term selling. When older bands suddenly contract and younger bands expand, previously dormant coins have moved en masse - a historically significant signal that long-term holders are becoming active, whether distributing into strength or repositioning ahead of major market moves.
Tracking the evolution of band composition alongside price action provides one of the most comprehensive on-chain views of market cycle dynamics - identifying accumulation phases where supply quietly ages into long-term holder cohorts, distribution phases where mature supply rotates back into active circulation, and the transition points between them that have historically marked major cycle inflection points.
