Wrapped coins

What is a wrapped token?

A wrapped token is a blockchain-backed IOU that represents—at a 1:1 ratio—an asset living on another chain or outside the crypto ecosystem entirely.
Smart contracts lock the original asset (BTC, ETH, gold, even real-estate) and mint an equivalent ERC-20, BEP-20, SPL, etc. token so it can trade in DeFi, collateralise loans, or be used in dApps while preserving the price of the underlying collateral.

Quick Facts

• Purpose: Move non-native or illiquid assets onto faster, programmable chains (mainly Ethereum).
• Backing: 1:1 custodial or decentralised vault; auditable on-chain.
• Common standards: ERC-20 (WBTC, WETH), BEP-20 (BBTC), SPL (soBTC).
• Market size: >$15 B in wrapped BTC alone; >$25 B across all wrapped assets.
• Key benefit: Interoperability + composability with DeFi (DEX, lend, derivatives).

Top Wrapped Tokens (Live Examples)

How It Works

1. Send original asset to custodian (BitGo, RenDAO) or smart-contract bridge.
2. Custody locks the asset in a multi-sig or MPC vault; emits event.
3. Mint wrapped token on destination chain (e.g. 1 BTC → 1 WBTC).
4. Use in DeFi – supply to Aave, swap on Uniswap, collateralise on Maker.
5. Redeem by burning wrapped token; original asset unlocked and returned.

Benefits

• DeFi composability – BTC can become collateral for DAI loans or yield farm.
• Cross-chain liquidity – move value from slow chains to fast, low-fee L2s.
• Fractional access – tokenise $2 k of gold instead of buying a full bar.
• 24/7 settlement – no T+2 clearing; trades atomic on DEXs.
• Transparent reserves – on-chain proof-of-assets; real-time audits.

Risks & Trade-offs

• Custodial risk – bridge or multi-sig hack can leave wrapped tokens unbacked (e.g., Ronin, Wormhole exploits).
• Centralisation – WBTC custodian BitGo controls keys; regulatory seizure possible.
• de-peg events – during high volatility wrapped asset can trade 1–3 % below native (e.g., WBTC vs BTC).
• Mint/burn fees – custodian plus gas can outweigh small trades.
• Bridge fragmentation – liquidity splits across WBTC, renBTC, tBTC, etc., hurting depth.
• Legal uncertainty – wrapped securities or real-estate may breach securities laws.

Final Thoughts

Wrapped tokens are the interoperability layer of DeFi: they let BTC, gold, or even NFTs ride on programmable rails, unlocking yield, leverage, and lightning-fast swaps.
The trade-off is counter-party risk; always check custodian audits, insurance coverage, and bridge decentralisation before parking capital.
If the wrapping process becomes trust-minimised (zk-proof bridges), expect wrapped assets to underpin the next wave of cross-chain finance.

Useful / Related Links

• WBTC Dashboard
• WETH Contract
• Ren Documentation
• tBTC Decentralised BTC on Ethereum
• Coinranking Wrapped Coins