> ## 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.

# Volatility Metrics

# Definition

The "Volatility Metrics" endpoint provides users with a quick 24-hour snapshot of the key changes in the options volatility surface between two given timestamps. This allows for a quick assessment of the important shifts in the options market landscape.

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# Details

Volatility Metrics returns several important metrics that capture the changes in the options volatility surface, including:

**Underlying Price Change:**

* The change in the price of the underlying asset (e.g., BTC, ETH) between the two timestamps.

**At-the-Money (ATM) Volatility Change:**

* The change in the implied volatility of the at-the-money options.

**Risk-Reversal Change:**

* The change in the volatility difference between out-of-the-money (OTM) call options and OTM put options with the same delta.

**Butterfly Value Change:**

* The change in the implied volatility of an options strategy that involves a long position in the ATM option, a short position in two OTM options (one call, one put) with the same delta, and a long position in two OTM options (one call, one put) with a higher delta.

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# API Endpoints

[/Volatility Metrics](/http/analytics/derivatives/volatility-metrics-24-hr)

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# Availability

| Exchange            | Start Date (YYYY-MM-DD)  | Granularity |
| ------------------- | ------------------------ | ----------- |
| Binance             | 2025-03-07               | Minutely    |
| Deribit             | 2019-04-01 to 2021-09-01 | Hourly      |
| Deribit             | 2021-09-01               | Minutely    |
| Bybit, Lyra, Thalex | 2024-06-01               | Minutely    |
| OKEx (OKX)          | 2021-12-16 to 2024-05-01 | Daily       |
| OKEx (OKX)          | 2024-05-01               | Minutely    |

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