Positions & Account - Rails Trading Developer API Documentation

Your positions, orders, and account state are available both live over the WebSocket and on demand via REST.

Positions

Each open position reports its size, cost basis, live valuation, margin, and PnL:

Field	Description
`market`	Contract name
`side`	`long` or `short`
`optionType`	`call` or `put`
`qty`	Position quantity
`value`	Position value
`entryPrice`	Average entry price
`markPrice` / `markIV`	Current mark price and implied volatility
`underlyingPrice`	Underlying index price
`breakEvenPrice`	Break-even price
`initialMargin`	Initial margin held for short positions (`0` for long)
`realizedPnl` / `unrealizedPnl`	Realized and unrealized PnL

Stream them on the Positions Stream or fetch them via Get Positions. See Margin & Liquidation for how margin is sized.

Your account-wide balances, margin usage, and PnL are available on the Account Summary Stream and via Get Account Summary:

Field	Description
`accountBalance`	Total account balance
`availableBalance`	Balance available for new orders
`withdrawableBalance`	Balance available to withdraw
`totalEquity`	Account balance plus unrealized PnL
`marginUsed`	Margin currently in use
`initialMargin` / `initialMarginRatio`	Initial margin requirement and its ratio to total equity
`maintenanceMargin` / `maintenanceMarginRatio`	Maintenance margin requirement and its ratio to total equity
`unrealizedPnl` / `pnl`	Unrealized PnL and cumulative realized PnL
`fees` / `volume`	Cumulative fees and traded volume

Your Options balance is funded and withdrawn independently — see Deposit & Withdraw.