This endpoint returns the Deribit “DVol” index and the associated 30-day rolling volatility of that index. This is a good measure of the volatility of volatility. The volatility of volatility method is calculated using the close-to-close volatility.
[Optional] The underlying currency for which to retrieve the volatility index.
[Examples] BTC | SOL_USDC
Note: inverse options have underlying currencies formatted as (BTC, ETH) while linear option currency formats include the stable coin in the same (SOL_USDC)
[Optional] Time format of the timestamps in the return payload.
[Defaults] milliseconds | ms* | iso | iso8601 | hr | human_readable