Liquidity providers deposit funds into DFX and receive a share of trading fees (supply-side fees).

DFX is a decentralized foreign exchange protocol deployed on Polygon, Ethereum & Arbitrum. DFX was founded in 2021 by Kevin Zhang and Adrian Li.

DFX tokenholders own and govern the protocol. They currently take a cut of the total trading fees paid by traders (revenue).

governance

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Exchanges (DEX)

DFX Finance

# DFX Finance Expenses Methodology

## 1. Overview

DFX expenses represent the total value of token incentives paid to liquidity providers and staking participants within the DFX protocol ecosystem. This metric captures the operational cost of incentivizing liquidity provision across DFX's automated market maker (AMM) pools on Ethereum and Polygon networks. The calculation aggregates all DFX token reward payments from official staking contracts and converts them to USD values on a daily basis.

## 2. Data sources

The calculation relies on several blockchain data sources and external feeds:

- **Ethereum event logs**: Parsed `RewardPaid` events from DFX StakingRewards v1 and v2 smart contracts that track when rewards are distributed to participants
- **Polygon event logs**: Parsed `RewardPaid` events from DFX StakingRewards v1 and v2 smart contracts on Polygon network
- **Ethereum token transfers**: DFX token transfer records showing direct payments from staking reward contract addresses
- **Polygon token transfers**: DFX token transfer records showing direct payments from staking reward contract addresses  
- **End-of-day price feeds**: Token price data for converting DFX token amounts to USD values
- **Token metadata**: DFX token decimal place information for proper unit conversion

## 3. Step-by-step calculation

### Component A: Reward payment event extraction
- **Purpose**: Capture structured reward payment data from DFX staking contracts
- **Logic**: Extract `RewardPaid` events from DFX StakingRewards contracts across Ethereum and Polygon networks, covering both v1 and v2 contract versions. Events contain the recipient address, reward amount, and transaction details. The system tracks specific DFX token addresses: `0x888888435fde8e7d4c54cab67f206e4199454c60` on Ethereum and `0xe7804d91dfcde7f776c90043e03eaa6df87e6395` on Polygon.
- **Key fields**: Block timestamp, transaction hash, recipient address (`address`), reward amount (`reward`), contract version, and chain identifier

### Component B: Direct token transfer extraction
- **Purpose**: Capture reward payments that bypass event logging through direct transfers
- **Logic**: Extract DFX token transfers where the sender is a known staking reward contract address. This captures reward payments that may not emit proper events but still represent legitimate incentive distributions. Only transfers of the official DFX tokens on each chain are included.
- **Key fields**: Block timestamp, transaction hash, sender address (`from_address`), transfer amount (`value`), token address, and chain identifier

### Component C: Account validation and filtering
- **Purpose**: Ensure only legitimate staking reward payments are included
- **Logic**: Filter both event-based and transfer-based payments to include only those originating from a predefined list of 44 official DFX staking reward contract addresses across Ethereum and Polygon. These addresses are hardcoded and represent legitimate v1 and v2 StakingRewards contracts deployed by the DFX protocol. Payments are categorized as 'Exchange AMM' business line within the 'dex' business segment.
- **Key fields**: Contract address validation, account name ('Staking Rewards'), protocol version, and business classification fields

### Component D: USD conversion and decimal correction
- **Purpose**: Standardize token amounts and convert to USD for consistent reporting
- **Logic**: Apply decimal correction based on DFX token metadata to convert raw blockchain amounts to proper token units. Then convert corrected DFX token amounts to USD using end-of-day price feeds that correspond to the payment date. This ensures all expenses are reported in a common USD denomination.
- **Key fields**: Corrected token amounts, USD conversion rates, and final USD expense values

### Final aggregation
- **Combining components**: Union the validated reward payments from both event logs and token transfers, then join with the account dimension table to ensure only legitimate staking contracts are included
- **Currency conversion**: Apply decimal correction first, then multiply by end-of-day DFX token prices to get USD values
- **Time aggregation**: Truncate all payment timestamps to daily boundaries and sum all USD values by day, chain, and business dimensions
- **Final calculation**: The daily DFX expenses equal the sum of all USD-converted token incentive payments made from official staking reward contracts on that day. Missing days are filled with zero values, and results are filtered based on chain data availability windows.

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Total project operating and incentive expenses.

DFX FinanceDFX

Expenses

Expenses

Competitive landscape

Chain breakdown