> ## Documentation Index > Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt > Use this file to discover all available pages before exploring further. # Calculate a volatility grid from an equity surface. > Use this operation to evaluate only the equity volatility surface supplied in the request; it does not modify market data. Supported strike types are `Absolute`, `PercentForward`, and `PercentSpot`. Each maturity is a day offset and must have a corresponding list of strikes. ## OpenAPI ````yaml /risk-and-pricing/atoti-risk-services/apis-endpoints/openapi/openapi.mintlify.json post /api/MarketData/GetEquityVolGrid openapi: 3.0.4 info: title: Derivitec Api 1.0 version: '1.0' servers: - url: https://api.riskportal.activeviam.com security: - oauth2: [] - apikey: [] tags: - name: AdminUser - name: AtotiReport - name: AtotiSession - name: BloombergOAuth - name: Bond - name: BondYieldCurvePage - name: BookAccess - name: Books - name: Commodity - name: Counterparties - name: Currencies - name: Equity - name: EquityDividend - name: EquityPage - name: FeatureFlag - name: Fx - name: FxPage - name: GroupAccess - name: Home - name: LegacyPosition - name: MarketData - name: MarketDataProvider - name: MarketDataProviderAccess - name: Meta - name: Notification - name: Organisation - name: PnLReport - name: PortfolioAccess - name: Portfolios - name: Position - name: PositionFilter - name: PricingEnvironment - name: PricingEnvironmentAccess - name: RateAsset - name: RateAssetPage - name: Report - name: ReportDefinition - name: ReportHistoryLauncherQuery - name: ReportLauncher - name: ReportQuery - name: ReportQueryViewUser - name: ReportRestriction - name: ReportView - name: RiskReport - name: Tradable - name: TradeBooking - name: User - name: VarReport - name: VarReportQuery - name: YieldCurvePage paths: /api/MarketData/GetEquityVolGrid: post: tags: - MarketData summary: Calculate a volatility grid from an equity surface. description: >- Use this operation to evaluate only the equity volatility surface supplied in the request; it does not modify market data. Supported strike types are `Absolute`, `PercentForward`, and `PercentSpot`. Each maturity is a day offset and must have a corresponding list of strikes. operationId: GetEquityVolGrid requestBody: description: >- The calculation payload. `VolSurface`, `Maturities`, and `Strikes` must be non-empty; the outer strike-list count and order must match the maturities, and `StrikeType` selects absolute or percentage interpretation. content: application/json-patch+json: schema: $ref: '#/components/schemas/ApiGetEquityVolGridRequest' application/json: schema: $ref: '#/components/schemas/ApiGetEquityVolGridRequest' text/json: schema: $ref: '#/components/schemas/ApiGetEquityVolGridRequest' application/*+json: schema: $ref: '#/components/schemas/ApiGetEquityVolGridRequest' responses: '200': description: >- Returns a grid preserving the requested maturities and strikes with evaluated volatilities, or an unsupported-strike-type or calculation error. content: application/json: schema: $ref: '#/components/schemas/ApiGetEquityVolGridResponse' '400': description: BadRequest '401': description: Unauthorized '403': description: Forbidden security: - oauth2: [] - apikey: [] components: schemas: ApiGetEquityVolGridRequest: required: - $type type: object properties: market_data_environment_name: type: string description: >- Name of the market-data environment to use. Supply either this name or `provider_id`, not both. nullable: true example: Example market data provider_id: type: string description: >- Opaque identifier of the market-data provider to use. Supply either this identifier or `market_data_environment_name`, not both. nullable: true vol_surface: $ref: '#/components/schemas/EquityVolSurface' maturities: type: array items: type: integer format: int32 description: >- Maturities as day offsets locating the requested equity volatility grid values. nullable: true strikes: type: array items: type: array items: type: number format: double description: >- Strike lists locating the requested values, with one list aligned to each maturity. nullable: true strike_type: enum: - absolute - percent_spot - percent_forward type: string description: Strike type locating the requested equity volatility grid values. $type: type: string enum: - >- Derivitec.Web.Core.MarketData.ApiGetEquityVolGridRequest, Derivitec.Web.Core additionalProperties: false description: >- Requests a volatility grid by evaluating a supplied surface at specified maturity and strike coordinates. ApiGetEquityVolGridResponse: required: - $type type: object properties: is_success: type: boolean description: >- Whether the operation completed successfully. The default is `true`; error outcomes set it to `false`. example: true error_messages: type: array items: type: string description: >- Messages explaining operation-level failures. The collection is empty by default. nullable: true vol_grid: $ref: '#/components/schemas/EquityVolGrid' $type: type: string enum: - >- Derivitec.Web.Core.MarketData.ApiGetEquityVolGridResponse, Derivitec.Web.Core additionalProperties: false description: Returns the evaluated volatility grid. EquityVolSurface: description: >- Equity volatility surface with benchmark coordinates and a spot reference. discriminator: propertyName: $type mapping: Derivitec.Web.Core.MarketData.EquityVolSurface, Derivitec.Web.Core: '#/components/schemas/EquityVolSurfaceMintlifyShape' Derivitec.Web.Core.MarketData.EquityVolSurfaceSpline, Derivitec.Web.Core: '#/components/schemas/EquityVolSurfaceSpline' Derivitec.Web.Core.MarketData.EquityVolSurfaceSvi, Derivitec.Web.Core: '#/components/schemas/EquityVolSurfaceSvi' oneOf: - $ref: '#/components/schemas/EquityVolSurfaceMintlifyShape' - $ref: '#/components/schemas/EquityVolSurfaceSpline' - $ref: '#/components/schemas/EquityVolSurfaceSvi' EquityVolGrid: required: - $type type: object properties: provider_id: type: string description: >- Market-data provider code recorded as the source of the contribution. Defaults to Derivitec. nullable: true derivitec_created: type: string description: Timestamp at which the market-data record was created. derivitec_modified: type: string description: Optional timestamp of the record's latest modification. nullable: true uploaded_date_time: type: string description: >- Optional timestamp at which the contribution was uploaded. UploadRateAssets ignores the supplied value on each rate asset and stores the current UTC time. nullable: true derivitec_modified_by: type: string description: >- Principal recorded as the latest modifier. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true uploaded_by: type: string description: >- Principal recorded as the uploader. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true rolled: type: boolean description: Whether the contribution has been rolled. example: false maturities: type: array items: type: integer format: int32 description: >- Maturity offsets from ReferenceDate, in calendar days, corresponding by position to the volatility rows. nullable: true reference_date: type: string description: Reference date of the volatility grid. format: date-time strikes: type: array items: type: array items: type: number format: double description: >- One strike row shared by all maturities, or one row per maturity; each row aligns with the corresponding volatility row. nullable: true strike_type: enum: - absolute - percent_spot - percent_forward type: string description: Coordinate convention used by the strike rows. Defaults to absolute. vols: type: array items: type: array items: type: number format: double description: >- Rows of positive volatility values as decimals; 0.20 means 20%. Rows match the strike-row shape and correspond by position to maturities. nullable: true use_spline: type: boolean description: Whether the grid is marked for spline use. example: false spot_ref: type: number description: Optional spot reference carried by the volatility grid. format: double nullable: true asset_id: $ref: '#/components/schemas/InstrumentIdentifier' $type: type: string enum: - Derivitec.Web.Core.MarketData.EquityVolGrid, Derivitec.Web.Core additionalProperties: false description: Equity volatility grid identified by its equity asset. EquityVolSurfaceMintlifyShape: required: - $type type: object properties: provider_id: type: string description: >- Market-data provider code recorded as the source of the contribution. Defaults to Derivitec. nullable: true derivitec_created: type: string description: Timestamp at which the market-data record was created. derivitec_modified: type: string description: Optional timestamp of the record's latest modification. nullable: true uploaded_date_time: type: string description: >- Optional timestamp at which the contribution was uploaded. UploadRateAssets ignores the supplied value on each rate asset and stores the current UTC time. nullable: true derivitec_modified_by: type: string description: >- Principal recorded as the latest modifier. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true uploaded_by: type: string description: >- Principal recorded as the uploader. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true rolled: type: boolean description: Whether the contribution has been rolled. example: false asset_name: $ref: '#/components/schemas/InstrumentIdentifier' benchmark_fwd_factors: type: array items: type: number format: double description: >- Benchmark forward-factor values, one corresponding by position to each benchmark maturity. nullable: true benchmark_maturities: type: array items: type: integer format: int32 description: >- Distinct benchmark maturity offsets from ReferenceDate, in calendar days. nullable: true reference_date: type: string description: Reference date of the equity volatility surface. format: date-time spot_ref: type: number description: Spot reference carried by the equity volatility surface. format: double $type: type: string enum: - Derivitec.Web.Core.MarketData.EquityVolSurface, Derivitec.Web.Core additionalProperties: false description: >- Equity volatility surface with benchmark coordinates and a spot reference. EquityVolSurfaceSpline: required: - $type type: object properties: provider_id: type: string description: >- Market-data provider code recorded as the source of the contribution. Defaults to Derivitec. nullable: true derivitec_created: type: string description: Timestamp at which the market-data record was created. derivitec_modified: type: string description: Optional timestamp of the record's latest modification. nullable: true uploaded_date_time: type: string description: >- Optional timestamp at which the contribution was uploaded. UploadRateAssets ignores the supplied value on each rate asset and stores the current UTC time. nullable: true derivitec_modified_by: type: string description: >- Principal recorded as the latest modifier. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true uploaded_by: type: string description: >- Principal recorded as the uploader. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true rolled: type: boolean description: Whether the contribution has been rolled. example: false asset_name: $ref: '#/components/schemas/InstrumentIdentifier' benchmark_fwd_factors: type: array items: type: number format: double description: >- Benchmark forward-factor values, one corresponding by position to each benchmark maturity. nullable: true benchmark_maturities: type: array items: type: integer format: int32 description: >- Distinct benchmark maturity offsets from ReferenceDate, in calendar days. nullable: true reference_date: type: string description: Reference date of the equity volatility surface. format: date-time spot_ref: type: number description: Spot reference carried by the equity volatility surface. format: double var_grid: type: array items: type: array items: type: number format: double description: The volatility grid (one vector per maturity) nullable: true strike_grid: type: array items: type: array items: type: number format: double description: The strike grid (one vector per maturity) nullable: true $type: type: string enum: - >- Derivitec.Web.Core.MarketData.EquityVolSurfaceSpline, Derivitec.Web.Core additionalProperties: false description: The equity vol surface. EquityVolSurfaceSvi: required: - $type type: object properties: provider_id: type: string description: >- Market-data provider code recorded as the source of the contribution. Defaults to Derivitec. nullable: true derivitec_created: type: string description: Timestamp at which the market-data record was created. derivitec_modified: type: string description: Optional timestamp of the record's latest modification. nullable: true uploaded_date_time: type: string description: >- Optional timestamp at which the contribution was uploaded. UploadRateAssets ignores the supplied value on each rate asset and stores the current UTC time. nullable: true derivitec_modified_by: type: string description: >- Principal recorded as the latest modifier. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true uploaded_by: type: string description: >- Principal recorded as the uploader. UploadRateAssets ignores the supplied value on each rate asset and stores the authenticated user identifier. nullable: true rolled: type: boolean description: Whether the contribution has been rolled. example: false asset_name: $ref: '#/components/schemas/InstrumentIdentifier' benchmark_fwd_factors: type: array items: type: number format: double description: >- Benchmark forward-factor values, one corresponding by position to each benchmark maturity. nullable: true benchmark_maturities: type: array items: type: integer format: int32 description: >- Distinct benchmark maturity offsets from ReferenceDate, in calendar days. nullable: true reference_date: type: string description: Reference date of the equity volatility surface. format: date-time spot_ref: type: number description: Spot reference carried by the equity volatility surface. format: double call_wings: type: array items: type: number format: double description: >- Non-negative call-wing parameter values, one corresponding by position to each benchmark maturity. nullable: true put_wings: type: array items: type: number format: double description: >- Non-negative put-wing parameter values, one corresponding by position to each benchmark maturity. nullable: true skews: type: array items: type: number format: double description: >- Skew parameter values, one corresponding by position to each benchmark maturity. nullable: true smiles: type: array items: type: number format: double description: >- Smile parameter values, one corresponding by position to each benchmark maturity. nullable: true vols: type: array items: type: number format: double description: >- Volatility values expressed as decimals, where 0.20 means 20%, with one value corresponding by position to each benchmark maturity. nullable: true $type: type: string enum: - >- Derivitec.Web.Core.MarketData.EquityVolSurfaceSvi, Derivitec.Web.Core additionalProperties: false description: >- Equity volatility surface carrying wing, skew, smile, and volatility parameter sequences. InstrumentIdentifier: description: >- Instrument code qualified by an identifier namespace and optional market code. discriminator: propertyName: $type mapping: Derivitec.Web.Core.MarketData.InstrumentIdentifier, Derivitec.Web.Core: '#/components/schemas/InstrumentIdentifierMintlifyShape' Derivitec.Web.Core.MarketData.InstrumentInfo, Derivitec.Web.Core: '#/components/schemas/InstrumentInfo' oneOf: - $ref: '#/components/schemas/InstrumentIdentifierMintlifyShape' - $ref: '#/components/schemas/InstrumentInfo' InstrumentIdentifierMintlifyShape: required: - $type type: object properties: code: type: string description: Instrument code interpreted in the selected identifier namespace. nullable: true identifier_type: enum: - Derivitec - Ric - Bloomberg - Isin - Figi - Sedol - RedCode - RedPairCode - BloombergYellow - XIgniteCode - CBondsId - EdiSecId - EdiSymbol - Cusip - NotSet type: string description: Namespace that determines how the instrument code is interpreted. market_identification_code: type: string description: >- Optional market identification code that further qualifies the instrument code. nullable: true $type: type: string enum: - >- Derivitec.Web.Core.MarketData.InstrumentIdentifier, Derivitec.Web.Core additionalProperties: false description: >- Instrument code qualified by an identifier namespace and optional market code. InstrumentInfo: required: - $type type: object properties: code: type: string description: Instrument code interpreted in the selected identifier namespace. nullable: true identifier_type: enum: - Derivitec - Ric - Bloomberg - Isin - Figi - Sedol - RedCode - RedPairCode - BloombergYellow - XIgniteCode - CBondsId - EdiSecId - EdiSymbol - Cusip - NotSet type: string description: Namespace that determines how the instrument code is interpreted. market_identification_code: type: string description: >- Optional market identification code that further qualifies the instrument code. nullable: true name: type: string description: Human-readable name of the identified instrument. nullable: true $type: type: string enum: - Derivitec.Web.Core.MarketData.InstrumentInfo, Derivitec.Web.Core additionalProperties: false description: Instrument identifier with a human-readable instrument name. securitySchemes: oauth2: type: oauth2 description: >- OAuth2 access-token requested from AWS Cognito and provided as a Auth Bearer header flows: implicit: authorizationUrl: https://auth.riskportal.derivitec.com/oauth2/authorize scopes: {} apikey: type: apiKey description: API-Key requested via the site and provided as a header name: x-api-key in: header ````