# Immutable X Bridge deposits Methodology

## 1. Overview

Bridge deposits measures the total value of assets held in the Immutable X bridge contracts on the main chain. This metric is used to track capital flows from Ethereum into the Immutable X Layer 2 environment and serves as a leading indicator of user intent and liquidity available for the ecosystem. The metric specifically captures the collateralized value backing assets migrated to the Immutable X platform.

## 2. Data sources

- **Blockchain events**: ERC-20 `Transfer` events and native asset transfers involving the Immutable X bridge contract (`0x5fdcca53617f4d2b9134b29090c87d01058e27e9`) on Ethereum
- **External data**: End-of-day price feeds and asset metadata

## 3. Step-by-step calculation

### Component A: Asset flow extraction and balance tracking

- **Purpose**: To identify and aggregate all asset movements into and out of the Immutable X bridge contract.
- **Logic**: Native asset transfers and ERC-20 token transfers are parsed to identify transactions where the Immutable X bridge contract address is either the sender or the recipient. Daily net flows are calculated for each asset by subtracting total outflows from total inflows. These net flows are then aggregated cumulatively over time to determine the total balance held by the bridge contract for every supported asset on a daily basis.
- **Key fields**: `account_address` (bridge contract), `token_address`, `amount`

### Component B: USD valuation and normalization

- **Purpose**: To normalize asset quantities and convert them into a standardized USD value.
- **Logic**: The raw quantities for each asset held in the bridge contract are normalized by their respective decimal precision. These normalized balances are then multiplied by end-of-day price feeds for each specific asset. Assets with no available price data are excluded from the total value.
- **Key fields**: `amount` (normalized), `price_usd`

### Component C: Data finalization and aggregation

- **Purpose**: To ensure data consistency and provide a continuous daily time series.
- **Logic**: Daily bridge deposits are aggregated by product and chain. A fill-forward strategy is applied to account for days without new transfer activity, ensuring the metric reflects the last known balance held in the bridge. The final values are filtered based on chain availability and archive status to ensure data freshness and accuracy.
- **Key fields**: `bridge_deposits`, `timestamp`, `product_id` (Immutable X)

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

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

Bridge deposits

Exchanges (DEX)

Immutable operates a full-stack infrastructure platform for web3 gaming that includes blockchains, namely Immutable zkEVM and Immutable X, and other products, such as Passport and Orderbook. Creators & users sell NFTs on Immutable. They receive royalties from secondary sales (supply-side fees).

Immutable is a platform for building web3 games. Immutable was founded by James Ferguson, Robbie Ferguson, Alex Connolly, and launched in 2018. This dashboard includes data from Immutable Orderbook, Immutable zkEVM, and Immutable X.

IMX holders own and govern the protocol. They currently take a cut of the total trading fees paid by NFT buyers on Immutable Orderbook and the total transaction fees paid by transaction senders on Immutable zkEVM (revenue). Immutable's investors include ParaFi Capital, GameStop Digital Ventures, Fabric Ventures, etc.

Immutable X

Bridge deposits

Bridge deposits

Chain breakdown