# Boros Total value locked Methodology

## 1. Overview

Total value locked measures the total value of assets deposited into Boros. Assets are held within the protocol-managed market hub address to support yield-trading activities. This metric is used as a leading indicator of the capital base utilized by Boros for collateralization and yield-related operations.

## 2. Data sources

- **Blockchain events**: ERC-20 token transfers and native token transfers involving the Boros market hub address, covering Arbitrum
- **External data**: End-of-day price feeds and asset metadata

## 3. Step-by-step calculation

### Component A: Boros collateral flow tracking

- **Purpose**: Identify asset inflows and outflows for the Boros market hub.
- **Logic**: Inflows and outflows are parsed from ERC-20 token transfers and native token transfers. Specifically, daily net flows for the Boros market hub address on Arbitrum (`0x1080808080f145b14228443212e62447c112adad`) are aggregated. Daily net flows are normalized by decimal precision.
- **Key fields**: `block_timestamp`, `token_address`, `value`, and `decimals`.

### Component B: Daily balance calculation

- **Purpose**: Establish a continuous daily record of assets held within the Boros product.
- **Logic**: Net flows, defined as inflows minus outflows, are summed per asset and per day. Cumulative balances are calculated by aggregating these net flows over time from the inception of the contracts. A fill-forward mechanism is applied to ensure balances are recorded for every day, even when no on-chain activity occurs on a specific date.
- **Key fields**: `timestamp`, `token_address`, and `tvl`.

### Component C: USD conversion and final aggregation

- **Purpose**: Normalize asset values to USD for cross-asset comparison.
- **Logic**: Daily asset balances are multiplied by end-of-day price feeds. The resulting values are summed across all assets to provide the total value locked for Boros. Daily granularity is maintained using UTC day boundaries.
- **Key fields**: `price_usd` and `tvl`.

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

Total value locked (TVL)

Total value locked (TVL) — value deposited into the project's applications.

Total value locked

Exchanges (DEX)

Users deposit yield-bearing tokens into Pendle Markets. The yield-bearing token is wrapped and split up into its principal and yield-bearing components, which allows users to execute yield-trading strategies (i.e. earn fixed yield, long yield). Traders pay a swap fee whenever yield-bearing tokens are swapped with its wrapped, principal, or yield-bearing component tokens.

Pendle is a permissionless yield-trading protocol built on Ethereum, HyperEVM, Arbitrum, BNB Chain, Optimism, Base, Berachain, Sonic, Plasma, Monad, X Layer, and Robinhood Chain. Pendle was founded by TN Lee and was launched in 2021.

PENDLE tokenholders own and govern the protocol. They currently take a cut of the total trading fees paid by traders (revenue).

Boros

Total value locked

Total value locked

Chain breakdown