BTC: UTXO Supply Aged At Least 365 Days - 30-Day Change

Bitcoin UTXO Supply Aged At Least 365 Days - 30-Day Change was 298,275.19 BTC on 7 Nov 2026 (latest daily value).

The 30-day change in the bitcoin unmoved for at least a year.

Why use it. It shows whether long-held supply is growing or being spent. How to read it. Above zero more coins are ageing past a year than old coins are being spent; below zero, old coins are moving.

Calculation. Exact definition: The 30-day change in BTC held in unspent outputs at least 365 days old. Positive values mean the aged total is higher than 30 days earlier; negative values mean it is lower. A rise can reflect outputs aging past 365 days, and a fall can reflect aged outputs being spent. Age uses block-header timestamps in fixed 365-day years, not owner holding time or lost-key inference. Closed UTC days only, with no carry across missing inputs; source revisions, publication holds and the weakest input's finality carry through. change(a+b+c+d+e+f+g, 30): the day's sum of the 1–2, 2–3, 3–5, 5–7, 7–10, 10–15 and 15+ year UTXO age bands minus the same sum 30 days earlier. The bands come from locally validated Bitcoin Core data, using 40-digit Decimal arithmetic.