Reference
Glossary
Plain definitions of the terms used across the tango.finance docs and app, from abandoned venue to Vault TVL, with links to the pages that explain them.
This page explains the terms used across the tango.finance docs and app. Each definition is short. Where a term has its own page or section, the definition links to it.
Key points
- The app names the stock and the action, such as "Supply AAPL". The smart contract that holds supplied stock is called a vault. Using a vault explains it.
- Share value is counted in the stock. Debt and stablecoins sit in a separate stablecoin book.
- The admin, curator and operator are roles in the vault's access manager. Profiles and access control explains each one.
| Term | Meaning |
|---|---|
| Abandon | The curator's way to remove a borrow venue that can no longer be read, writing off its collateral. See Borrow venue support. |
| Access manager | The OpenZeppelin contract that decides who may call each restricted function, and with what delay. |
| Admin | The top role. It holds the curator and operator roles at their delays, and removes either at once. |
| Available to withdraw now | How much of your stock the app can pay you in one transaction right now. See Withdraw in the app. |
| Borrow venue | One position at a Morpho Blue or Aave v4 market, where the vault posts stock and borrows a stablecoin. See Borrow venue support. |
| Borrowing APY | Yearly interest on the stablecoin borrowed, as a share of Vault TVL. |
| Collateral | Supplied stock posted at a borrow venue so the strategy can borrow against it. |
| Curation service | The automated service that holds the operator role on tango.finance. See Profiles and access control. |
| Curator | The role that adds venues, stablecoins and price feeds and sets the fee, each behind its delay. |
| Default stablecoin | The stablecoin the strategy borrows and keeps its book in, fixed at deployment. |
| Deficit | When the stablecoin book's debt exceeds its stablecoins and lending by more than rounding. Deposits and standard withdrawals stop. |
| Deposit cap | The most stock deposits may bring the total to. Harvests can take it higher, which stops deposits until the cap is raised. The curator raises it behind its delay, and the operator lowers it at once. |
| Donate | Giving the default stablecoin to the stablecoin book. Anyone can do it. |
| ERC-4626 | The standard interface for tokenized vaults. The contract that holds supplied stock is one, and so is every lending venue. |
| Forced withdrawal | A withdrawal that releases collateral and repays debt in the same transaction. Any holder can call it. See Withdrawals. |
| Guardian | A role that removes the curator or the operator and cancels their scheduled changes, without delay. The admin holds both. |
| Harvest | Taking profit from the book, paying the performance fee and buying stock with the rest. |
| Harvest tolerance | The most value a harvest may lose against oracle prices. The contract caps it at 5%. |
| Idle stock | Supplied stock held rather than posted as collateral. Standard withdrawals pay from it. |
| Lending order | The order in which forced withdrawals draw on lending venues. The operator sets it. |
| Lending venue | An ERC-4626 vault for a stablecoin, where the vault lends and earns interest. See Lending venue support. |
| Liquidation | A borrow venue letting others repay part of a position's debt and take its collateral at a discount, once the position crosses the liquidation line. |
| Loan-to-value (LTV) | A position's debt divided by the value of its collateral. |
| Merkl | A reward distribution service many money markets use to pay reward campaigns. See Reward claiming. |
| Money Market APY | Lending income less borrowing interest, after the performance fee, as a share of Vault TVL. |
| Operator | The role that runs positions day to day without delay. |
| Performance fee | The share of each harvest paid to the fee recipient. The contract caps it at 25%. See Fees. |
| Rebuy | Buying back stock a liquidation took, from the surplus it left, with no fee. |
| Release order | The order in which forced withdrawals release collateral from borrow venues. The operator sets it. |
| Share value | All the stock held divided by the number of shares. No price is read. |
| Shares | The ERC-20 token you receive when you supply, standing for your part of the stock. |
| Spread | What the lending earns less what the borrowing costs. |
| Stablecoin book | The strategy's stablecoin side: idle stablecoins plus lending, less debt. |
| Stale | A price too old, or otherwise unreadable, to trust. |
| Supplied | How much stock your shares are worth now. |
| Surplus | Profit in the stablecoin book that a harvest may take. |
| Swap tolerance | The most value a stablecoin swap may lose against oracle prices. The contract caps it at 5%. |
| Swapper | A small contract that runs the strategy's swaps. Only the contract that created it can call it. |
| Timelock | The wait between scheduling a change and making it. See Timelocks. |
| Tokenized stock | A token that tracks one share of a listed company. |
| Total APY | Money Market APY plus eligible rewards, after the performance fee. |
| Underlying | The one stock each strategy holds. |
| Vault | The smart contract, one per stock, that holds supplied stock and runs the strategy. See Using a vault. |
| Vault TVL | The US dollar value of all of a stock that is supplied, including idle stock. Rates are measured against it. |