> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ekiden.fi/llms.txt
> Use this file to discover all available pages before exploring further.

# PnL, Margin & Funding

* Funding index is embedded in GET /api/v1/user/positions response.
* PnL = (Mark Price - Entry Price) × Position Size ± Funding

## Margin Modes

Ekiden supports both cross and isolated margin:

* Cross margin (`is_cross: true`): All positions on a market share the same margin pool. Maintenance and initial margin ratios use the market’s cross settings. Liquidation risk is assessed against the shared equity.
* Isolated margin (`is_cross: false`): Each position has its own margin. Maintenance and initial ratios use the market’s isolated settings. Risk is isolated per position.

API surfaces include:

* `GET /api/v1/user/positions` with `is_cross` indicating the mode.
* `initial_margin`, `maintenance_margin`, and `leverage` pre-computed per position for convenience.
* `liq_price` (estimated liquidation price) mirrors the on-chain Move logic and considers:
  * margin mode (cross vs isolated)
  * maintenance ratio
  * maximum leverage constraints
  * funding index (market vs position)

Notes:

* `initial_margin` is computed from entry notional and the applicable initial margin ratio.
* `maintenance_margin` is computed from mark-notional and the applicable maintenance ratio.
* `leverage = notional / margin` with guards for zero values.
* `liq_price` may be absent when it cannot be computed (e.g., zero size).