cbBTC

cbBTC supply is 93,827 BTC — 30.3% of tokenized BTC, the 2nd largest of 21 wrappers tracked. It is outstanding on 4 chains; Ethereum holds 50.4% of it. Over 90 days it rose by 6,695 BTC (7.7%).2026-09-26

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

Supply: 93.8k BTC; Outstanding on 4 chains, net of bridge escrow where escrow is tracked.
Share of tokenized BTC: 30%; 2nd largest of 21 wrappers tracked.
Change, 90 days: +6.7k BTC; +7.7% since 28 Jun 2026.
Posted as collateral: 79%; Share of supply posted at Aave v3, Morpho Blue and Spark.

Supply by chain

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

Outstanding cbBTC 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	47,245	50.4%	−2,535−5.1%	+2,111+4.7%	+9,486+25.1%
Base	46,344	49.4%	+2,050+4.6%	+4,520+10.8%	+25,175+118.9%
Monad	145	0.2%	−52−26.4%	+57+65.3%	—
Arbitrum	93	0.1%	+22+31.0%	+6+7.1%	+46+97.3%
Total	93,827	100.0%	−515	+6,695	+34,852

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

Posted as lending collateral

74,304 BTC of cbBTC was posted as collateral at Aave v3, Morpho Blue and Spark on 26 Sep 2026 — 79.2% 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 cbBTC minted per month over the last 6 whole months.
Month	Net minted (BTC)
Mar 2026	+388
Apr 2026	−10,977
May 2026	+7,844
Jun 2026	+5,088
Jul 2026	+5,985
Aug 2026	+2,650
Net, 6 months	+10,977

Over time: Net minting by issuer.