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  1. Market Data
  2. Market Data Overview
  3. Volatility

Implied Volatility

Definition

The implied volatility of a synthetic option, with strike price always at-the-money and with expiration date always a fixed number of days from calculation time.

Name
MetricID
Unit
Frequency

Volatility, implied, at-the-money, 1 day

Dimensionless

1h

Volatility, implied, at-the-money, 2 days

Dimensionless

1h

Volatility, implied, at-the-money, 3 days

Dimensionless

1h

Volatility, implied, at-the-money, 7 days

Dimensionless

1h

Volatility, implied, at-the-money, 14 days

Dimensionless

1h

Volatility, implied, at-the-money, 21 days

Dimensionless

1h

Volatility, implied, at-the-money, 30 days

Dimensionless

1h

Volatility, implied, at-the-money, 60 days

Dimensionless

1h

Volatility, implied, at-the-money, 90 days

Dimensionless

1h

Volatility, implied, at-the-money, 120 days

Dimensionless

1h

Volatility, implied, at-the-money, 180 days

Dimensionless

1h

Volatility, implied, at-the-money, 270 days

Dimensionless

1h

Volatility, implied, at-the-money, 365 days

Dimensionless

1h

Details

Implied volatility is a property of options contracts, analogous to price, which fluctuates over time. The implied volatility represents the market’s view of how significantly the price of the underlying asset could change in the future. In standard models, for an option with a given strike price and time until expiration, the implied volatility is only a function of the option’s price and can serve as a proxy for that price.

Analysts may wish to track this value as a timeseries day-over-day, however this poses a problem on two fronts: For one, the days until expiration for each option are constantly changing. If a contract expires in 30 days on Sunday, then on Monday it will be expiring in 29 days, so comparing the implied volatility to the day before will require disentangling changes due to market conditions from changes due to the closer expiration date. Additionally, as the price of the underlying asset changes, the significance of the option’s strike price will change as well: An option strike price of $60,000 at expiration will be much less valuable if Bitcoin is currently trading at $40,000 than if it is currently at $59,000.

This set of metrics normalizes these option parameters, allowing traders and analysts to see how the option market evolves over time using consistent parameters. The implied volatility is always estimated for a hypothetical option expiring at a constant horizon in the future at each calculation time. Additionally, each time the synthetic option is calculated to have a strike price approximately equal to the market price of the underlying asset (i.e. it is an at-the-money option). This ensures at each time point the metric compares the implied volatility of options with the same expiration horizon and with a strike price that will pay out if the underlying asset increases at all relative to its current market price.

The calculation methodology used is as follows:

  1. Each time we calculate an observation, we select a target expiration date which is at a fixed horizon in the future from the current calculation time. These horizons can vary from 1-day to 365-days.

  2. For an underlying asset on a specific exchange, we identify the call options expiring closest to, but before, the target date and the call options closest to, but after, the target date. We refer to these as the shorter-horizon and longer-horizon options.

  3. We identify the market price of the underlying asset at the calculation time using the Coin Metrics Real-Time Reference Rate for that asset.

  4. From the set of shorter-term options, we select the one with strike price closest to the market price of the underlying asset identified in step 3.

  5. We repeat Step 4 for the longer-term options.

  6. We calculate a weighted-mean of the implied volatilities reported by the exchange for the two options selected in steps 4 and 5. These two implied volatility values are given a weight equal to the inverse of time between the option’s expiration date and the target date: w_i = 1 / abs(target date - expiration_i). This has the effect that the IV of an option very close to the target date will dominate the IV of the synthetic option, compared to one much further away.

  7. This weighted mean of implied volatilities is the final implied volatility of an at-the-money option with a constant expiration horizon at the calculation time.

API Endpoints

Implied volatility metrics can be accessed using these endpoints:

  • /timeseries/exchange-asset-metrics

Example

{
  "data": [
    {
      "exchange_asset": "deribit-btc",
      "time": "2024-05-08T00:00:00.000000000Z",
      "volatility_implied_atm_30d_expiration": "0.5161714"
    },
    {
      "exchange_asset": "deribit-btc",
      "time": "2024-05-09T00:00:00.000000000Z",
      "volatility_implied_atm_30d_expiration": "0.5306845"
    },
    {
      "exchange_asset": "deribit-btc",
      "time": "2024-05-10T00:00:00.000000000Z",
      "volatility_implied_atm_30d_expiration": "0.4946762"
    },
    {
      "exchange_asset": "deribit-btc",
      "time": "2024-05-11T00:00:00.000000000Z",
      "volatility_implied_atm_30d_expiration": "0.5138429"
    },
    {
      "exchange_asset": "deribit-btc",
      "time": "2024-05-12T00:00:00.000000000Z",
      "volatility_implied_atm_30d_expiration": "0.5133762"
    }
  ]
}
  • asset: The id of the asset.

  • time: The exchange-reported time in ISO 8601 date-time format. Always with nanoseconds precision.

  • volatility_implied_atm_30d_expiration: The annualized implied volatility of an at-the-money option that expires in 30 days.

Availability for Exchange-Assets

PreviousMarket Implied VolatilityNextRealized Volatility

Last updated 8 months ago

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volatility_implied_atm_1d_expiration
volatility_implied_atm_2d_expiration
volatility_implied_atm_3d_expiration
volatility_implied_atm_7d_expiration
volatility_implied_atm_14d_expiration
volatility_implied_atm_21d_expiration
volatility_implied_atm_30d_expiration
volatility_implied_atm_60d_expiration
volatility_implied_atm_90d_expiration
volatility_implied_atm_120d_expiration
volatility_implied_atm_180d_expiration
volatility_implied_atm_270d_expiration
volatility_implied_atm_1y_expiration

Exchange-asset metrics

get

Returns metrics for specified exchange-asset. Results are ordered by tuple (exchange_asset, time). To fetch the next page of results use next_page_url JSON response field.

Authorizations
Query parameters
exchange_assetsstring[]Required

Comma separated list of exchange-asset pairs or patterns like exchange-* or *-asset.

metricsstring[]Required

Comma separated metrics to request time series data for. Information on all available metrics can be found on page https://coverage.coinmetrics.io/exchange-asset-metrics-v2. Use the /catalog-all/exchange-assets endpoint for the full list of supported metrics per exchange-asset combination.

Example: ["open_interest_reported_future_usd","volume_reported_spot_usd_1d"]
frequencystringOptional

Frequency of the exchange-asset metrics. Supported values are 5m, 1h, 1d.

Default: 1d
start_timestringOptional

Start of the time interval. This field refers to the time field in the response. Multiple formats of ISO 8601 are supported: 2006-01-20T00:00:00Z, 2006-01-20T00:00:00.000Z, 2006-01-20T00:00:00.123456Z, 2006-01-20T00:00:00.123456789Z, 2006-01-20, 20060120. Inclusive by default. UTC timezone by default. Z suffix is optional and timezone parameter has a priority over it. If start_time is omitted, response will include time series from the earliest time available.

end_timestringOptional

End of the time interval. This field refers to the time field in the response. Multiple formats of ISO 8601 are supported: 2006-01-20T00:00:00Z, 2006-01-20T00:00:00.000Z, 2006-01-20T00:00:00.123456Z, 2006-01-20T00:00:00.123456789Z, 2006-01-20, 20060120. Inclusive by default. UTC timezone by default. Z suffix is optional and timezone parameter has a priority over it. If end_time is omitted, response will include time series up to the latest time available.

start_inclusivebooleanOptional

Inclusive or exclusive corresponding start_* parameters.

Default: true
end_inclusivebooleanOptional

Inclusive or exclusive corresponding end_* parameters.

Default: true
timezonestringOptional

Timezone name for start_time and end_time timestamps. This parameter does not modify the output times, which are always UTC. Format is defined by TZ database.

Default: UTCExample: America/New_York
page_sizeinteger · int32 · min: 1 · max: 10000Optional

Number of items per single page of results. The value of this parameter is ignored if the endpoint supports the format parameter and its value is set to json_stream.

Default: 100
paging_fromstring · enumOptional

Where does the first page start, at the start of the interval or at the end. The value of this parameter is ignored if the endpoint supports the format parameter and its value is set to json_stream.

Default: endPossible values:
sortstring · enumOptional

How results will be sorted. Metrics are sorted by (exchange_asset, time) by default. If you want to sort 1d metrics by (time, exchange_asset) you should choose time as value for the sort parameter. Sorting by time is useful if you request metrics for a set of exchange-assets.

Default: exchange_assetPossible values:
limit_per_exchange_assetinteger · int32Optional

How many entries per exchange_asset result should contain. For example, this combination of parameters exchange_assets=binance-btc,coinbase-eth&metrics=volume_trusted_spot_usd_1h&limit_per_exchange_asset=1 returns the latest volume_trusted_spot_usd_1h values for binance-btc and coinbase-eth.

prettybooleanOptional

Human-readable formatting of JSON responses.

Default: false
formatstring · enumOptional

Format of the response.

Default: jsonPossible values:
next_page_tokenstringOptional

Token for receiving the results from the next page of a query. Should not be used directly. To iterate through pages just use next_page_url response field.

Responses
200
Time series of exchange-asset metrics.
application/json
400
Exchange-asset pair not found.
application/json
401
Requested resource requires authorization.
application/json
403
Requested resource is not available with supplied credentials.
application/json
414
Provided URI is too long. It must not be greater than 10000 symbols.
get
GET /v4/timeseries/exchange-asset-metrics HTTP/1.1
Host: api.coinmetrics.io
Accept: */*
{
  "data": [
    {
      "exchange_asset": "binance-btc",
      "time": "2021-10-04T00:00:00.000000000Z",
      "open_interest_reported_future_usd": "3469621227.0258"
    },
    {
      "exchange_asset": "binance-btc",
      "time": "2021-10-05T00:00:00.000000000Z",
      "open_interest_reported_future_usd": "3562791590.02995"
    },
    {
      "exchange_asset": "binance-btc",
      "time": "2021-10-06T00:00:00.000000000Z",
      "open_interest_reported_future_usd": "3970248573.60142"
    },
    {
      "exchange_asset": "binance-btc",
      "time": "2021-10-07T00:00:00.000000000Z",
      "open_interest_reported_future_usd": "4110308192.96416"
    }
  ]
}
  • Definition
  • Details
  • API Endpoints
  • GETExchange-asset metrics
  • Example
  • Availability for Exchange-Assets
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