What is Compound 0x (CZRX)?

Quick Facts

  • Token: Compound 0x (CZRX)
  • Blockchain: Ethereum
  • Token type: cToken (interest-bearing receipt token)
  • Underlying asset: ZRX (0x Protocol token)
  • Protocol: Compound Finance
  • Interest model: Algorithmic, determined by supply and demand
  • Launch year: 2020
  • Use case: Lending, interest accrual, collateral

Introduction

Compound 0x, ticker CZRX, is an interest-bearing token issued by the Compound Finance protocol on Ethereum. It represents a user's deposited position in the ZRX lending market and automatically grows in value as interest accumulates.

Unlike a simple receipt, CZRX is a fully transferable ERC-20-compatible token — meaning it can be held in any standard Ethereum wallet or used across compatible DeFi applications.

History & Background

Compound Finance launched in 2018 as one of the earliest decentralized money market protocols on Ethereum. The protocol introduced the cToken standard — a family of receipt tokens each tied to a specific underlying asset.

CZRX was introduced in 2020 as the dedicated cToken for ZRX, the native token of the 0x Protocol. Its launch expanded Compound's supported asset list, bringing ZRX holders into the DeFi lending ecosystem.

How Compound 0x Works

When a user deposits ZRX into the Compound protocol, the smart contract mints CZRX tokens in return. These tokens act as a claim on the deposited ZRX plus any interest earned.

The exchange rate between CZRX and ZRX increases continuously over time. When a user wants to reclaim their ZRX, they redeem CZRX and receive back the original deposit plus the accumulated interest — all handled automatically by the smart contract.

Interest rates are set algorithmically based on the ratio of supplied versus borrowed ZRX in the pool. Higher borrowing demand pushes rates up; excess supply pushes them down.

Tokenomics

CZRX is minted whenever ZRX is supplied to Compound and burned when the underlying asset is redeemed. The token supply therefore reflects real user deposits and not a fixed issuance schedule.

Because the cToken exchange rate only moves upward, holding CZRX over time is equivalent to passively earning yield on ZRX deposits. There is no separate staking or lock-up required.

Circulating supply ? 123.05 million CZRX
Total supply ? 123.05 million CZRX
Max supply ? -- CZRX
Updated 5d ago

Ecosystem & Use Cases

  • Earning yield: Depositing ZRX mints CZRX and earns ongoing interest.
  • Collateral: CZRX can be used within Compound as collateral to borrow other supported assets.
  • DeFi composability: As a standard Ethereum token, CZRX can interact with other protocols that recognize cTokens.
  • Liquidity provision: Suppliers of ZRX contribute to the pool from which borrowers draw, supporting the broader 0x ecosystem.

Team, Governance & Community

CZRX is issued and managed entirely by the Compound protocol's smart contracts. The broader Compound protocol is governed by COMP token holders through on-chain voting, giving the community control over key parameters such as supported assets and interest rate models.

The Compound team is based in North America and has maintained an open-source development approach since the protocol's founding.

Advantages

  • Passive yield: CZRX accrues interest automatically without any active management.
  • Transparency: Smart contract logic is open-source and publicly audited.
  • Composability: CZRX integrates with other DeFi protocols as a standard Ethereum token.
  • Algorithmic rates: Interest rates respond in real time to market conditions, offering fair pricing.

Risks & Challenges

  • Smart contract risk: Bugs or exploits in the Compound contracts could affect deposited ZRX.
  • Liquidation risk: Using CZRX as collateral exposes positions to liquidation if collateral value falls.
  • Underlying asset risk: CZRX's value is closely tied to ZRX; sharp price moves in ZRX affect the deposit's worth.
  • Low liquidity: The ZRX lending market on Compound may have limited activity compared to larger asset pools.

Long-Term Vision

CZRX fits into the broader vision of open, permissionless money markets where any asset can be lent or borrowed without intermediaries. As Compound continues to evolve through community governance, the ZRX market and CZRX's role within it will be shaped by protocol upgrades, integrations, and shifts in the wider DeFi landscape.

Frequently Asked Questions

CZRX, or Compound 0x, is an interest-bearing token issued by the Compound Finance protocol on Ethereum. It is minted when a user supplies ZRX tokens to the Compound lending pool and represents their deposit plus accrued interest.

Simply deposit ZRX into the Compound protocol and you will receive CZRX in return. The exchange rate between CZRX and ZRX increases over time, meaning you can redeem more ZRX than you originally deposited when you withdraw.

Interest rates are set algorithmically by the Compound protocol based on supply and demand. When borrowing demand for ZRX is high relative to available supply, the interest rate rises, and vice versa.

Yes. Within the Compound protocol, CZRX can serve as collateral to borrow other supported assets. Users must manage their collateral ratio carefully to avoid liquidation.

No. ZRX is the native token of the 0x Protocol, while CZRX is a derivative token issued by Compound when ZRX is deposited. CZRX tracks the value of the deposited ZRX plus interest.

The CZRX smart contract operates autonomously on Ethereum. Broader protocol-level decisions, such as interest rate models and supported assets, are governed by COMP token holders through Compound's on-chain governance system.

CZRX is deployed on the Ethereum blockchain at contract address 0xb3319f5d18bc0d84dd1b4825dcde5d5f7266d407. It follows the CErc20 cToken standard used by all Compound money markets.

Key risks include smart contract vulnerabilities, liquidation risk if CZRX is used as collateral, and exposure to ZRX price movements. The ZRX lending pool on Compound also tends to have lower liquidity than larger markets like ETH or USDC.