> ## Documentation Index > Fetch the complete documentation index at: https://docs.kraken.com/llms.txt > Use this file to discover all available pages before exploring further. # Calculate portfolio margin, pnl and greeks > For a given portfolio of balances and positions (futures and options), calculate the margin requirements, pnl and option greeks. Note: This is currently available exclusively in the Kraken pre-prod environments. ## OpenAPI ````yaml /openapi/futures-rest.yaml post /portfolio-margining/simulate openapi: 3.1.0 info: title: Kraken Futures Trading API version: v3 description: Market data and order management endpoints. servers: - url: https://futures.kraken.com/derivatives/api/v3 description: Kraken Futures security: [] tags: - name: Market Data - name: Instrument Details description: >- - The `/instruments/status` endpoint provides a list of statuses for all instruments. - The `/instruments/{symbol}/status` endpoint provides the status of a single instrument. - name: Order Management - name: Multi-Collateral description: Endpoints pertaining to the multi-collateral (MC) futures markets. - name: Account Information - name: Assignment Program - name: Fee Schedules description: >- **DEPRECATED** — Effective 2026-06-22, the fee values returned by these endpoints no longer reflect the fees actually charged on Futures trades. Futures fee calculation has been migrated to a centralised Kraken fee service. To determine the fee rate applied to your trades, use the Spot [`GetTradeVolume`](https://docs.kraken.com/api/docs/rest-api/get-trade-volume) endpoint authenticated with a Spot API key. - name: General - name: Historical Data - name: Historical Funding Rates - name: Trading Settings - name: Subaccounts - name: Transfers - name: RFQs paths: /portfolio-margining/simulate: post: tags: - Account Information summary: Calculate portfolio margin, pnl and greeks description: >- For a given portfolio of balances and positions (futures and options), calculate the margin requirements, pnl and option greeks. Note: This is currently available exclusively in the Kraken pre-prod environments. operationId: simulatePortfolio parameters: - description: Request body as a JSON string name: json in: query required: true content: application/json: schema: $ref: '#/components/schemas/PortfolioSimulationRequest' responses: '200': description: Simulated portfolio calculations content: application/json: schema: oneOf: - title: Success Response allOf: - $ref: '#/components/schemas/PortfolioSimulationResponse' - $ref: '#/components/schemas/SuccessResponse' - $ref: '#/components/schemas/ErrorResponse' security: - general-api-key-read-only: [] authent: [] servers: - url: https://demo-futures.kraken.com/derivatives/api/v3 components: schemas: PortfolioSimulationRequest: type: object properties: positions: type: array items: $ref: '#/components/schemas/PortfolioSimulationPosition' required: - positions PortfolioSimulationResponse: type: object properties: maintenanceMargin: type: number format: double initialMargin: type: number format: double pnl: type: number format: double portfolioMarginBreakdown: $ref: '#/components/schemas/PortfolioMarginBreakdown' greeks: type: object additionalProperties: $ref: '#/components/schemas/OptionGreeks' required: - maintenanceMargin - initialMargin - pnl - portfolioMarginBreakdown - greeks SuccessResponse: title: Success Response allOf: - $ref: '#/components/schemas/ResultSuccess' - $ref: '#/components/schemas/ServerTime' ErrorResponse: allOf: - title: Errors type: object properties: errors: type: array items: $ref: '#/components/schemas/Error' error: $ref: '#/components/schemas/Error' required: - error - $ref: '#/components/schemas/ResultError' - $ref: '#/components/schemas/ServerTime' PortfolioSimulationPosition: type: object properties: instrument: type: string example: PF_BTCUSD size: $ref: '#/components/schemas/DecimalDouble' entryPrice: $ref: '#/components/schemas/DecimalDouble' required: - instrument - size - entryPrice PortfolioMarginBreakdown: description: Breakdown of components that make up the portfolio margin calculation. type: object properties: totalCrossAssetNettedMarketRisk: type: number format: double totalMarketRisk: type: number format: double totalScenarioPnls: type: array items: type: number format: double totalAbsoluteOptionPositionDeltaNotional: type: number format: double netPortfolioDelta: type: number format: double totalPremium: type: number format: double isBuyOnly: type: boolean futuresMaintenanceMargin: type: number format: double required: - totalCrossAssetNettedMarketRisk - totalMarketRisk - totalAbsoluteOptionPositionDeltaNotional - netPortfolioDelta - totalPremium - isBuyOnly - futuresMaintenanceMargin OptionGreeks: description: Option Greeks type: object properties: iv: type: number format: double description: >- The implied volatility. Displays an IV of -1.0 whenever the IV is impossible to calculate or outside of the bounds allowed. delta: type: number format: double gamma: format: double type: number nullable: true vega: format: double type: number nullable: true theta: format: double type: number nullable: true rho: format: double type: number nullable: true required: - iv - delta - gamma - vega - theta - rho ResultSuccess: type: object properties: result: type: string enum: - success example: success required: - result ServerTime: type: object properties: serverTime: description: Server time in Coordinated Universal Time (UTC) type: string format: date-time example: '2020-08-27T17:03:33.196Z' required: - serverTime Error: type: string description: |- Error description. - `accountInactive`: The Futures account the request refers to is inactive - `apiLimitExceeded`: The API limit for the calling IP address has been exceeded - `authenticationError`: The request could not be authenticated - `insufficientFunds`: The amount requested for transfer is below the amount of funds available - `invalidAccount`: The Futures account the transfer request refers to is invalid - `invalidAmount`: The amount the transfer request refers to is invalid - `invalidArgument`: One or more arguments provided are invalid - `invalidUnit`: The unit the transfer request refers to is invalid - `Json Parse Error`: The request failed to pass valid JSON as an argument - `marketUnavailable`: The market is currently unavailable - `nonceBelowThreshold`: The provided nonce is below the threshold - `nonceDuplicate`: The provided nonce is a duplicate as it has been used in a previous request - `notFound`: The requested information could not be found - `requiredArgumentMissing`: One or more required arguments are missing - `Server Error`: There was an error processing the request - `Unavailable`: The endpoint being called is unavailable - `unknownError`: An unknown error has occurred enum: - accountInactive - apiLimitExceeded - authenticationError - insufficientFunds - invalidAccount - invalidAmount - invalidArgument - invalidUnit - Json Parse Error - marketUnavailable - nonceBelowThreshold - nonceDuplicate - notFound - requiredArgumentMissing - Server Error - Unavailable - unknownError ResultError: type: object properties: result: type: string enum: - error example: error required: - result DecimalDouble: type: number format: double example: 12.03532 securitySchemes: general-api-key-read-only: type: apiKey description: General API key with at least **read-only** access in: header name: APIKey x-inlineDescription: true authent: type: apiKey description: Authentication string in: header name: Authent x-inlineDescription: true ````