Wrapped Bitcoin is Bitcoin repackaged as an Ethereum token. One WBTC is backed by one BTC sitting in a custodian's vault, which lets Bitcoin's value move through DeFi, lending markets, liquidity pools, collateral positions, where native BTC cannot go. For six years it was the leading custodial Bitcoin wrapper by supply and DeFi integration, and then a 2024 custody controversy turned its category into a contested race. As of 26 September 2026 WBTC represents about 116,000 BTC worth roughly $9.8 billion, per CoinGecko, while Coinbase's rival cbBTC has grown to about 97,000 BTC in two years.
Here is how the wrapper actually works, what changed in the custody fight, how WBTC differs from just holding Bitcoin, and how to put BTC to work without wrapping it at all.
How WBTC works
WBTC is a token on Ethereum. New tokens are created when BTC enters the custodian's reserve and destroyed when BTC is redeemed out of it, which keeps the supply matched to the backing. The system has three roles. A custodian holds the underlying BTC and mints or burns WBTC against it. Merchants, a vetted set of trading firms and platforms, are the only parties who can request minting and redemption, passing KYC with the custodian to do it. Everyone else, meaning every retail holder, gets WBTC the ordinary way, by swapping for it on a regular exchange or a decentralised one.
Reserves are verifiable on chain. Anyone can compare the BTC held in the published custody addresses against the WBTC token supply, a transparency model that predates the proof-of-reserves fashion by years. The catch has never been hidden either. WBTC is an IOU on a custodian, and its safety is exactly as good as the custody arrangement behind it, which is why the events of 2024 mattered so much.
WBTC vs BTC
Price-wise the two are the same asset, and WBTC tracks Bitcoin tick for tick in normal conditions. Everything else differs.
Native BTC lives on the Bitcoin network, secured by proof of work, holdable in self-custody with no counterparty at all. That purity is the point, and its cost is inertness. Bitcoin's base layer does not natively provide the Ethereum-style lending markets and pooled finance that generate on-chain yield.
WBTC swaps that purity for utility. It works everywhere Ethereum DeFi works, as collateral on Aave and Morpho, in liquidity pools, in structured products. In exchange the holder stacks three risks native BTC does not have. Custody risk on the BTC backing the wrapper. Smart contract risk on the token and every protocol it touches. And peg risk, the possibility that WBTC trades below BTC if the market ever doubts redemption, which is precisely what the 2024 episode tested.
The custody fight that ended the monopoly
In August 2024 BitGo, WBTC's custodian since 2019, announced it would move WBTC into a multi-jurisdictional custody structure through a joint venture with BiT Global, an arrangement associated with Justin Sun. However the partners described it, DeFi's risk desks read it as a change in who could touch the backing, and reacted. Lending protocols debated and trimmed WBTC's collateral role, and in December 2024 Coinbase delisted WBTC outright while launching its own wrapper, a fight that spilled into court before BiT Global agreed to drop its suit in June 2025, a dismissal rather than a settlement per CoinDesk.
The market's verdict shows in the supply numbers. WBTC still leads, but cbBTC went from launch to roughly 97,000 BTC by September 2026, most of the gap closed in two years, with decentralised alternatives like tBTC taking a smaller slice. Wrapped Bitcoin became a competitive category rather than a synonym for one token, and the competition runs entirely on one question, whose custody story you believe. The peg, for its part, held throughout, which deserves noting as fairly as the controversy does.
For a holder in 2026 the practical takeaway is that wrapper choice is custody choice. WBTC means the BitGo joint venture structure, cbBTC means Coinbase, tBTC means a network that splits custody control across many independent participants, and each has a different worst case.
What people actually use WBTC for
The honest list is short. Collateral, borrowing stablecoins against Bitcoin without selling it. Liquidity providing, earning fees in BTC-paired pools, where a sharp move in either pooled asset can leave you worse off than simply holding both. And DeFi yield strategies that deploy BTC value into lending markets. In all of it you control the wallet and the transactions yourself, while the token underneath still depends on its custodian holding the backing BTC, a stack our guide to earning interest on Bitcoin walks through option by option.
What none of it requires is conviction that wrapping is worth the added risk layers for your particular goal. If the goal is simply Bitcoin that earns, wrapping is one route, not the route.
Earning on BTC without wrapping anything
EarnPark pays up to 10% APY on native Bitcoin as of September 2026, published base rates that every account gets holding zero PARK, with the token boosting rather than gating them. The range is honest about its trade-offs. The 10% figure comes from a high-risk strategy with monthly settlement, a medium-risk DeFi strategy pays 6.5% with instant withdrawal (a 0.30% fee plus $3.20 flat), and the low-risk Maker Core option pays 5% with daily payouts and a 30 day exit queue during which yield keeps accruing. The returns come from named sources, market-making models at the low-risk tier, on-chain lending at the medium tier and higher-risk trading strategies at the top, each stated on its strategy page. You deposit BTC, the strategy handles deployment, and there is no wrapper token in your hands whose peg or custodian you need to monitor, though platform counterparty risk replaces it, as our Bitcoin security guide explains in the wider context of protecting a stack.
The comparison to a DIY WBTC strategy is straightforward. Wrapping suits people who want hands-on DeFi control and accept the custody-plus-contract risk stack. A managed strategy suits people who want the yield without operating it. And cold storage remains the deliberate choice of holders who decide no yield is worth any counterparty, which is a position this article respects. For holders who decide otherwise, you can start earning on native BTC in minutes and keep the long-term holding intact.
FAQ
Is WBTC safe?
WBTC has operated since 2019 without losing its peg or its reserves, and backing is verifiable on chain. Its risk is concentrated in the custody structure, now a multi-jurisdictional joint venture, which is exactly what the 2024 controversy and the Coinbase delisting were about. Major DeFi lending markets still accept it as collateral, and holding it is not risk-equivalent to holding native BTC.
Is WBTC the same price as Bitcoin?
Effectively yes. Arbitrage keeps WBTC within a hair of BTC because merchants can mint and redeem one for one. A persistent discount would signal the market doubting redemption, which has not happened, including through the 2024 custody fight.
Can I redeem WBTC for real Bitcoin?
Directly, only if you are a KYC'd merchant. Retail holders exit the ordinary way, swapping WBTC for BTC on an exchange at market price, which in practice may involve a spread, trading fees and network costs rather than a redemption process.
Should I use WBTC or cbBTC?
They do the same job with different custodians. WBTC has the longest track record and the widest DeFi integration, cbBTC has Coinbase's custody brand and grew to near parity in two years. Choose by which custody arrangement you trust and which venues your strategy needs, not by the token mechanics, which are equivalent.