Zerion shows an aggregated view of a wallet's total crypto holdings. Through Zerion’s interface users are able to swap, send and borrow crypto assets.

Zerion is a non-custodial DeFi aggregator built on Ethereum and other adjacent blockchains. Zerion was founded by Evgeny Yurtaev, Alexey Bashlykov and Vadim Koleoshkin and launched in 2016.

Zerion owns and governs the platform. They currently charge a swap fee on the transactions that they route (revenue). Zerion’s investors include Gnosis, Wintermute, Blockchain Ventures etc.

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Zerion

# Zerion Trading volume Methodology

## 1. Overview

Zerion trading volume measures the total USD value of tokens traded through Zerion's infrastructure protocol across multiple blockchain networks. This metric captures the input token amounts from swap transactions executed through Zerion v1 routers, providing insight into trading activity facilitated by Zerion's aggregation services. The calculation aggregates daily trading volumes from router execution events and converts them to USD for standardized reporting.

## 2. Data sources

- **Zerion Router events**: Parsed `Router_Executed` events from Zerion v1 contracts across seven blockchain networks (Arbitrum, Avalanche, BSC, Fantom, Gnosis, Optimism, and Polygon)
- **Token metadata**: Token registry data providing symbols, decimal places, and token identification information
- **End-of-day price feeds**: USD price data for token valuation and currency conversion
- **Chain availability data**: Information about data availability and coverage for different blockchain networks

## 3. Step-by-step calculation

### Component A: Raw trade event extraction
- **Purpose**: Captures individual swap transactions executed through Zerion's router contracts
- **Logic**: Extracts `Router_Executed` events from Zerion v1 contracts across seven supported chains. Filters out events marked as removed and excludes one specific denylisted transaction hash. Each event contains input token address, output token address, input amount, output amount, and protocol fee information. The system handles native token addresses using a special exception address (`0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee`) that gets mapped to the actual native token address for each chain (ETH for Arbitrum/Optimism, AVAX for Avalanche, BNB for BSC, etc.).
- **Key fields**: `block_timestamp`, `transaction_hash`, `log_index`, `inputToken`, `outputToken`, `absoluteInputAmount`, `absoluteOutputAmount`, `protocolFeeAmount`

### Component B: Trading pair metadata enrichment  
- **Purpose**: Creates standardized trading pair identifiers and resolves token symbols
- **Logic**: Builds trading pair metadata by joining trade events with token registry data to resolve token symbols. For trades involving native tokens (identified by the exception address), uses predefined native token symbols based on the chain (ETH, AVAX, BNB, FTM, xDAI, MATIC). Creates account names in the format TOKEN0-TOKEN1 to identify unique trading pairs. This component ensures consistent token identification across different chains and handles the special case of native token representation.
- **Key fields**: `real_token_0_address`, `real_token_1_address`, `token_0_symbol`, `token_1_symbol`, `account_name`

### Component C: Trade enrichment and volume extraction
- **Purpose**: Combines trade events with trading pair metadata and extracts trading volumes
- **Logic**: Joins the raw trade events with trading pair metadata using chain and token addresses as join keys. Preserves all trade transaction details while adding the standardized account names for trading pairs. Extracts the `token_0_amount` (input token amount) as the primary trading volume measure, representing the value of tokens being traded into the protocol.
- **Key fields**: `token_0_address`, `token_0_amount`, `account_name`, `chain`

### Final aggregation
- **Combining components**: All enriched trade records are processed as individual trading volume events, with each trade's input token amount representing a volume contribution
- **Currency conversion**: Trading volumes are converted to USD using end-of-day price feeds, with automatic correction for token decimal places to ensure accurate value representation
- **Time aggregation**: Timestamps are truncated to day boundaries, creating daily trading volume aggregations for each token and chain combination
- **Final calculation**: The final trading volume metric represents the total USD value of input tokens from all swap transactions executed through Zerion routers on each day, with gap filling applied using zero values for dates with no trading activity and chain availability filters applied to ensure data quality

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

Total value of spot trades executed on the exchange.

Zerion

Trading volume

Trading volume

Competitive landscape

Chain breakdown