> ## Documentation Index > Fetch the complete documentation index at: https://docs.amberdata.io/llms.txt > Use this file to discover all available pages before exploring further. # Moneyness Surfaces Floating > This endpoint returns the option implied volatility surface in the form of moneyness from the "underlying" future's price for listed expirations. This surface is calibrated using SVI and is therefor available in hourly format (historical), real-time (on-going) for BTC and ETH on Deribit only. ## OpenAPI ````yaml get /analytics/volatility/moneyness-surfaces/floating openapi: 3.1.0 info: title: derivatives-api version: '2' servers: - url: https://api.amberdata.com/markets/derivatives security: - sec0: [] paths: /analytics/volatility/moneyness-surfaces/floating: get: summary: Moneyness Surfaces Floating description: >- This endpoint returns the option implied volatility surface in the form of moneyness from the "underlying" future's price for listed expirations. This surface is calibrated using SVI and is therefor available in hourly format (historical), real-time (on-going) for BTC and ETH on Deribit only. operationId: derivatives-volatility-moneyness-surfaces-floating parameters: - name: currency in: query description: >- **[Required]** The underlying currency for which there are listed option instruments. **[Examples]** ` BTC | ETH ` required: true schema: type: string default: BTC - name: startDate in: query description: >- **[Optional]** Payload only includes data after this date (inclusive). **[Formats]** `seconds | milliseconds | iso8601` **[Examples]** `1578531600 | 1578531600000 | 2020-09-01T01:00:00` schema: type: string format: date-time - name: endDate in: query description: >- **[Optional]** Payload only includes data before this date (exclusive). **[Formats]** `seconds | milliseconds | iso8601` **[Examples]** `1578531600 | 1578531600000 | 2020-09-01T01:00:00` schema: type: string format: date-time - name: daysToExpirationStart in: query description: >- **[Optional]** Users can pass a days to expiration filter lower bound, to return only a subset of the delta surface. **[Examples]** ` 1 | 7 | 60 ` schema: type: integer format: int32 - name: daysToExpirationEnd in: query description: >- **[Optional]** Users can pass a days to expiration filter upper bound, to return only a subset of the delta surface. **[Examples]** ` 1 | 30 | 180 ` schema: type: integer format: int32 - name: timeFormat in: query description: >- **[Optional]** Time format of the timestamps in the return payload. **[Defaults]** `milliseconds | ms* | iso | iso8601 | hr | human_readable` schema: type: string default: hr responses: '200': description: '200' content: application/json: schema: type: object properties: status: type: integer example: 200 title: type: string example: OK description: type: string example: Successful request payload: type: object properties: data: type: array items: type: object properties: atm: type: number example: 59.35 description: At The Money volatility call10PercentOutOfMoneyVolatility: type: number example: 61.03 description: Volatility for call options 10% out of the money call20PercentOutOfMoneyVolatility: type: number example: 64.05 description: Volatility for call options 20% out of the money call30PercentOutOfMoneyVolatility: type: number example: 67.42 description: Volatility for call options 30% out of the money call40PercentOutOfMoneyVolatility: type: number example: 70.72 description: Volatility for call options 40% out of the money currency: type: string example: BTC description: The underlying currency daysToExpiration: type: integer example: 180 description: >- The number of days remaining until the option's expiration exchange: type: string example: deribit description: The exchange where the option is traded indexPrice: type: number example: 103240.09 description: The index price of the underlying asset put10PercentOutOfMoneyVolatility: type: number example: 60.59 description: Volatility for put options 10% out of the money put20PercentOutOfMoneyVolatility: type: number example: 65.37 description: Volatility for put options 20% out of the money put30PercentOutOfMoneyVolatility: type: number example: 72.77 description: Volatility for put options 30% out of the money put40PercentOutOfMoneyVolatility: type: number example: 81.97 description: Volatility for put options 40% out of the money timestamp: type: string example: '2025-01-23T00:25:00.000Z' description: The timestamp of the data underlyingPrice: type: number example: 109432.44 description: The price of the underlying asset examples: Result: value: status: 200 title: OK description: Successful request payload: data: - atm: 59.35 call10PercentOutOfMoneyVolatility: 61.03 call20PercentOutOfMoneyVolatility: 64.05 call30PercentOutOfMoneyVolatility: 67.42 call40PercentOutOfMoneyVolatility: 70.72 currency: BTC daysToExpiration: 180 exchange: deribit indexPrice: 103240.09 put10PercentOutOfMoneyVolatility: 60.59 put20PercentOutOfMoneyVolatility: 65.37 put30PercentOutOfMoneyVolatility: 72.77 put40PercentOutOfMoneyVolatility: 81.97 timestamp: '2025-01-23T00:25:00.000Z' underlyingPrice: 109432.44 - atm: 57.87 call10PercentOutOfMoneyVolatility: 60.18 call20PercentOutOfMoneyVolatility: 63.83 call30PercentOutOfMoneyVolatility: 67.9 call40PercentOutOfMoneyVolatility: 72 currency: BTC daysToExpiration: 30 exchange: deribit indexPrice: 103240.09 put10PercentOutOfMoneyVolatility: 58.58 put20PercentOutOfMoneyVolatility: 64.47 put30PercentOutOfMoneyVolatility: 76.7 put40PercentOutOfMoneyVolatility: 94.31 timestamp: '2025-01-23T00:25:00.000Z' underlyingPrice: 104203.24 - atm: 58.2 call10PercentOutOfMoneyVolatility: 59.59 call20PercentOutOfMoneyVolatility: 62.1 call30PercentOutOfMoneyVolatility: 65.1 call40PercentOutOfMoneyVolatility: 68.26 currency: BTC daysToExpiration: 60 exchange: deribit indexPrice: 103240.09 put10PercentOutOfMoneyVolatility: 58.9 put20PercentOutOfMoneyVolatility: 62.49 put30PercentOutOfMoneyVolatility: 69.29 put40PercentOutOfMoneyVolatility: 79.36 timestamp: '2025-01-23T00:25:00.000Z' underlyingPrice: 105332.44 - atm: 56.75 call10PercentOutOfMoneyVolatility: 63.1 call20PercentOutOfMoneyVolatility: 74.14 call30PercentOutOfMoneyVolatility: 85.49 call40PercentOutOfMoneyVolatility: 96.02 currency: BTC daysToExpiration: 7 exchange: deribit indexPrice: 103240.09 put10PercentOutOfMoneyVolatility: 64.49 put20PercentOutOfMoneyVolatility: 85.77 put30PercentOutOfMoneyVolatility: 113.03 put40PercentOutOfMoneyVolatility: 142.61 timestamp: '2025-01-23T00:25:00.000Z' underlyingPrice: 103491.37 '400': description: '400' content: application/json: examples: Result: value: {} schema: type: object properties: {} deprecated: false security: - ApiKeyAuth: [] components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key ````