tBTC

tBTC supply is 3,878 BTC — 1.3% of tokenized BTC, the 8th largest of 21 wrappers tracked. It is outstanding on 4 chains; Ethereum holds 96.2% of it. Over 90 days it fell by 688.4 BTC (15.1%).2026-09-26

Data through 26 Sep 2026 · Every chart that carries tBTC · Methodology

Supply: 3.9k BTC; Outstanding on 4 chains, net of bridge escrow where escrow is tracked.
Share of tokenized BTC: 1.3%; 8th largest of 21 wrappers tracked.
Change, 90 days: −688 BTC; −15.1% since 28 Jun 2026.
Posted as collateral: 44%; Share of supply posted at Aave v3, Morpho Blue and Spark.

Supply by chain

Outstanding tBTC on each covered chain, net of bridge escrow where escrow is tracked, and its change over 30, 90 and 360 days.

Outstanding tBTC per chain, its share of the wrapper's supply, and its change over 30, 90 and 360 days.
Chain	Supply (BTC)	Share	30d (BTC)	90d (BTC)	360d (BTC)
Ethereum	3,730	96.2%	−132−3.4%	−661−15.1%	−1,343−26.5%
Arbitrum	89	2.3%	−9−9.5%	−16−14.9%	−83−48.3%
Base	50	1.3%	+2+4.1%	−7−12.6%	−169−77.2%
Optimism	9	0.2%	−1−6.6%	−4−31.7%	−11−55.5%
Total	3,878	100.0%	−140	−688	−1,607

Over time: Wrapped BTC supply by issuer. Every wrapper side by side: the supply table.

Posted as lending collateral

1,691 BTC of tBTC was posted as collateral at Aave v3, Morpho Blue and Spark on 26 Sep 2026 — 43.6% of its supply.

Over time: Which wrapped BTC is posted as collateral.

Net minting by month

The token's mint and burn events, summed per whole month — the current month is left out until it closes. Minting is counted from events and supply from balances: two separate measurements.

Net tBTC minted per month over the last 6 whole months.
Month	Net minted (BTC)
Mar 2026	+33
Apr 2026	−636
May 2026	−458
Jun 2026	+147
Jul 2026	−162
Aug 2026	−507
Net, 6 months	−1,583

Over time: Net minting by issuer.