DEX aggregators

Oku Trade

# Oku Trade Supply-side fees Methodology

## 1. Overview

Supply-side fees represent the total fees collected by Okutrade's liquidity providers from trading activity and flash loans. This metric captures fee revenue generated from users swapping tokens and borrowing assets via flash loans on Okutrade V3 pools on the XDC blockchain. The calculation multiplies transaction volumes by pool-specific fee tiers to determine the fees earned by liquidity providers.

## 2. Data sources

- **XDC blockchain events**: Parsed `Pool_Swap_event` logs capturing all token swaps on Okutrade V3 pools
- **XDC blockchain events**: Parsed `Pool_Flash_event` logs capturing flash loan transactions on Okutrade V3 pools  
- **XDC blockchain events**: Parsed `Factory_PoolCreated_event` logs defining trading pairs and their fee tiers
- **Transaction data**: XDC transaction records providing user address information
- **External data**: End-of-day token price feeds for USD conversion
- **Token metadata**: Token decimals and symbols for proper amount calculation and display

## 3. Step-by-step calculation

### Component A: Trading pair configuration
- **Purpose**: Establishes the universe of Okutrade V3 pools with their fee structures
- **Logic**: Parses `Factory_PoolCreated_event` logs from XDC to identify all created pools. Extracts pool addresses, token pairs (token0 and token1), and fee tiers. Joins with token metadata to get token decimals and symbols. Fee tiers are converted from basis points to decimal format by dividing by 1,000,000.
- **Key fields**: `account_address` (pool address), `token0_address`, `token1_address`, `fee_tier`, token decimals for both assets

### Component B: Trading volume calculation  
- **Purpose**: Calculates USD trading volume from swap events while preventing price manipulation
- **Logic**: Processes `Pool_Swap_event` logs to extract token amounts for each swap. Joins with trading pair data to get fee tiers and token decimals. Converts raw token amounts to decimal-adjusted amounts by dividing by 10^decimals. Converts both token amounts to USD using end-of-day price feeds. Uses the minimum USD value between token0 and token1 amounts as the trade volume to prevent inflated volumes from price discrepancies. Aggregates daily by pool.
- **Key fields**: `token0_amount`, `token1_amount` after decimal adjustment, USD prices, `trading_volume` as minimum of the two USD amounts

### Component C: Flash loan volume calculation
- **Purpose**: Calculates USD volume from flash loan transactions  
- **Logic**: Processes `Pool_Flash_event` logs to extract borrowed token amounts. Applies same decimal correction and USD conversion as trading volumes. However, for flash loans, sums both token USD amounts rather than taking the minimum, since flash loans involve borrowing specific assets rather than exchanging them. Aggregates daily by pool.
- **Key fields**: `token0_amount`, `token1_amount` after decimal adjustment, `flash_loan_volume` as sum of both USD amounts

### Component D: Fee calculation
- **Purpose**: Applies pool-specific fee rates to volumes
- **Logic**: Multiplies trading volume by fee tier for swap fees and flash loan volume by fee tier for flash loan fees. Fee tiers are already in decimal format from the trading pair configuration. This produces the total fees collected by liquidity providers for each pool and activity type.
- **Key fields**: `fees` calculated as volume × fee tier for each activity type

### Final aggregation
- **Combining components**: Unions swap fees and flash loan fees, then aggregates by summing all fees per day, chain, and product
- **Currency conversion**: USD conversion occurs at the volume calculation stage using end-of-day price feeds matched by timestamp, chain, and token address
- **Time aggregation**: Daily boundaries using timestamp truncation to day level  
- **Final calculation**: Total supply-side fees equal the sum of (trading volume × fee tier) plus (flash loan volume × fee tier) across all Okutrade V3 pools per day

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

Portion of fees distributed to service providers or supply-side participants.

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Supply-side fees

Supply-side fees

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