WBTC

WBTC supply is 110,273 BTC — 35.7% of tokenized BTC, the largest of 21 wrappers tracked. It is outstanding on 8 chains; Ethereum holds 92.3% of it. Over 90 days it rose by 755.4 BTC (0.7%).2026-09-26

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

Supply: 110.3k BTC; Outstanding on 8 chains, net of bridge escrow where escrow is tracked.
Share of tokenized BTC: 36%; The largest of 21 wrappers tracked.
Change, 90 days: +755 BTC; +0.7% since 28 Jun 2026.
Posted as collateral: 37%; Share of supply posted at Aave v3, Morpho Blue and Spark.

Supply by chain

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

Outstanding WBTC 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	101,788	92.3%	+64+0.1%	+658+0.7%	−5,956−5.5%
Arbitrum	7,330	6.6%	+164+2.3%	+244+3.4%	−862−10.5%
Optimism	681	0.6%	−19−2.7%	−98−12.6%	−152−18.2%
Avalanche	314	0.3%	−3−1.0%	−8−2.4%	−90−22.2%
Base	62	0.1%	−3−4.0%	−4−6.0%	+49+399.2%
Monad	57	0.1%	+23+66.6%	−37−39.0%	—
BNB Chain	42	0.0%	+1+3.4%	0+0.5%	+29+219.1%
MegaETH	0	0.0%	00.0%	00.0%	—
Total	110,273	100.0%	+228	+755	−6,924

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

Posted as lending collateral

40,413 BTC of WBTC was posted as collateral at Aave v3, Morpho Blue and Spark on 26 Sep 2026 — 36.6% 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 WBTC minted per month over the last 6 whole months.
Month	Net minted (BTC)
Mar 2026	−1,065
Apr 2026	−1,487
May 2026	−2,272
Jun 2026	−185
Jul 2026	−27
Aug 2026	−148
Net, 6 months	−5,184

Over time: Net minting by issuer.