Wrapped Token
A wrapped token is a blockchain-based asset that represents another cryptocurrency or real-world asset at a fixed one-to-one peg, allowing the underlying asset to be used on a different blockchain network than the one on which it originally exists.
Wrapped tokens solve one of the most persistent limitations of public blockchains: the inability to natively communicate value across separate networks. Bitcoin, for example, cannot run directly on the Ethereum Virtual Machine because the two chains use different consensus rules and address formats. A wrapped token bridges this gap by locking the original asset in a custodial smart contract or with a centralized custodian and minting an equivalent token on the destination chain. The holder of the wrapped token can redeem it for the underlying asset at any time by burning the wrapped version and unlocking the original from the custodian.
Wrapped Bitcoin (WBTC) is the most widely traded example. A merchant partner locks real Bitcoin with a custodian and receives an ERC-20 WBTC token on Ethereum at a one-to-one ratio. The token can then be deposited into Ethereum-based decentralized finance (DeFi) protocols for lending, borrowing, or liquidity provision — use cases that are not natively available on the Bitcoin network. As of recent years WBTC has consistently ranked among the largest ERC-20 tokens by market capitalization.
Wrapping can be custodial or trustless. Custodial models rely on a known entity to hold the reserve asset, introducing counterparty risk similar to that of a centralized exchange. Trustless or decentralized bridges use smart contracts and cryptographic proofs — sometimes supplemented by a committee of validators — to lock and mint assets without a single controlling party. However, decentralized bridges have been the target of some of the largest exploits in crypto history, including the Ronin and Wormhole bridge hacks, because the smart contracts governing them held enormous concentrations of value.
From a regulatory standpoint, the US Securities and Exchange Commission (SEC) has not issued formal guidance specifically on wrapped tokens, though the custodial arrangements used by some issuers may implicate money-transmission licensing and, depending on the underlying asset, securities laws. The Financial Crimes Enforcement Network (FinCEN) views conversion between digital assets as a money services activity subject to Bank Secrecy Act compliance.
For traders and investors, wrapped tokens expand the universe of composable assets available within any given DeFi ecosystem. They also introduce a small but non-trivial risk premium — the wrap itself may trade at a slight discount to the underlying if confidence in the custodian or bridge deteriorates. Monitoring the collateralization ratio and the transparency of reserve audits is therefore an important part of evaluating wrapped token positions.