# edgeX Bridge Bridge deposits Methodology

## 1. Overview

edgeX Bridge deposits is defined as the total USD value of assets held in the original deposit contracts of edgeX Bridge on Ethereum, Arbitrum, and BSC. Capital flows and residual assets remaining in the edgeX Bridge contracts that historically credited StarkEx L2 balances for the initial edgeX venue are tracked by this metric. This metric is utilized as a key indicator of historical capital commitment and remaining liquidity within these specific bridging contracts. The later USDC venue on EDGE Chain is excluded as its collateral is managed through separate mechanisms.

## 2. Data sources

- **Blockchain events**: ERC-20 `Transfer` events and native token transfers associated with specific edgeX Bridge deposit contracts, covering Ethereum, Arbitrum, and BSC
- **External data**: End-of-day price feeds and asset metadata

## 3. Step-by-step calculation

### Component A: Flow extraction

- **Purpose**: Capture daily inflows and outflows of assets for the designated edgeX Bridge contracts
- **Logic**: ERC-20 `Transfer` events and native token transfers are extracted for the specified edgeX Bridge contract addresses on Ethereum, Arbitrum, and BSC. Inflows and outflows are aggregated daily per asset and contract address to determine the net daily flow.
- **Key fields**: `timestamp`, `account_address`, `token_address`, `amount`

### Component B: Balance accumulation and normalization

- **Purpose**: Calculate the cumulative asset balances held in the edgeX Bridge contracts
- **Logic**: Net daily flows are accumulated over time to compute the running balance of each asset held by the edgeX Bridge contracts. Asset balances are normalized by decimal precision using asset metadata. A fill-forward strategy is applied to ensure balance continuity across days with no transfer activity.
- **Key fields**: `amount`, `decimals`

### Component C: USD valuation and aggregation

- **Purpose**: Convert asset balances to USD and aggregate at the product level
- **Logic**: Normalized daily asset balances are multiplied by end-of-day asset prices to calculate the USD value. The USD values are aggregated daily by chain and tagged to the edgeX Bridge product. A final fill-forward strategy is applied to maintain continuous daily metric values, and chain availability filters are applied to align with data freshness standards.
- **Key fields**: `price_usd`, `balance`, `bridge_deposits`

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

Value of assets held in a project's bridge contracts.

Bridge deposits

Bridges

edgeX is a high-performance decentralized perpetual futures and spot trading platform incubated by Amber Group, combining an off-chain matching engine with on-chain settlement. Its original venue ran on StarkEx zero-knowledge rollups and wound down in August 2026. edgeX V2 is a full rebuild on EDGE Chain, an application-specific Arbitrum rollup that settles to Ethereum, using Circle's CCTP for native USDC deposits and reaching a peak throughput of 300,000 orders per second at sub-100 millisecond order latency.

edgeX Bridge

Bridge deposits

Bridge deposits

Chain breakdown