Auctioneers create auctions on Bounce Finance which users can participate in.

Bounce Finance is a non-custodial auction protocol built on Ethereum and other adjacent blockchains. Bounce Finance was founded by Ryan Fang & Jack Lu and launched in 2020.

AUCTION tokenholders own and govern the protocol. They currently take a cut of the total auction fees paid by auction creators (revenue). Bounce Finance's investors include Coinbase Ventures, Binance Labs, Pantera Capital, etc.

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Bounce Finance

# Bounce Finance Fees Methodology

## 1. Overview

The BouncefinanceFinance fees metric measures the total daily fees collected from auction activities on the Bounce protocol. This metric captures platform fees charged when auction creators claim their proceeds after successful auctions. The calculation aggregates fees from "Fixed auction" types across multiple blockchain networks and converts them to USD for standardized reporting.

## 2. Data sources

The calculation relies on several raw data sources:
- **Blockchain events**: Parsed `CreatorClaimed` events from `BounceFixedSwap` contracts deployed on Arbitrum, BSC, Ethereum, Gnosis, and Optimism networks
- **Transaction data**: Token transfer events from the same blockchain networks to determine fee denomination
- **External data**: End-of-day token price feeds for USD conversion and token metadata containing decimal precision information
- **Protocol data**: Wrapped native token contract addresses for each supported chain (used as fallback denomination)

## 3. Step-by-step calculation

### Component A: Auction fee extraction
- **Purpose**: Extracts raw fee amounts from completed auctions across all supported chains
- **Logic**: The system identifies `CreatorClaimed` events emitted by `BounceFixedSwap` contracts when auction creators claim their proceeds. From each event, it extracts the `txFee` field as the fee amount and the `amount1` field as the auction proceeds. Only non-removed (valid) events are processed. The system processes data from five chains: Arbitrum, BSC, Ethereum, Gnosis, and Optimism, each with their respective contract deployments.
- **Key fields**: `txFee` (raw fee amount), `amount1` (auction proceeds), `block_timestamp` (event timing), `transaction_hash` (for joining with transfers), `address` (creator address)

### Component B: Fee denomination detection
- **Purpose**: Determines the token type (currency) in which fees were paid
- **Logic**: The system joins `CreatorClaimed` events with token transfer records from the same transaction. It matches transfers where the from address equals the creator address and the transfer amount equals the auction proceeds amount. This matching reveals which token was used in the auction. If no matching token transfer is found, the system defaults to the wrapped native token of the respective chain (WETH on Ethereum, WBNB on BSC, etc.).
- **Key fields**: `token_address` (fee denomination), `from_address` (transfer sender), `value` (transfer amount for matching)

### Component C: Currency conversion and standardization
- **Purpose**: Converts raw fee amounts to standardized USD values
- **Logic**: The system applies decimal corrections based on each token's metadata to convert raw blockchain amounts to human-readable values. It then uses end-of-day price feeds to convert fee amounts from their native token denomination to USD. This ensures all fees are reported in a consistent currency regardless of the original auction token.
- **Key fields**: Corrected fee amounts after decimal adjustment, USD-converted fee values

### Final aggregation
- **Combining components**: Fee amounts are aggregated by day, summing all auction fees that occurred within each 24-hour period across all supported chains
- **Currency conversion**: All fees are converted to USD using end-of-day exchange rates for the date when each auction was completed
- **Time aggregation**: Block timestamps are truncated to daily boundaries, with all auctions completed within a calendar day grouped together
- **Final calculation**: The daily fee total represents the sum of all auction fees collected by the Bounce protocol on that day, expressed in USD and including proper decimal scaling based on the token denomination of each individual auction

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

Total value users pay to use a protocol (gross fees, user-paid fees).

Bounce FinanceAUCTION

Fees

Fees

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