derivitec.core.client.DerivitecClient.get_eq_vol_of_var_curves

DerivitecClient.get_eq_vol_of_var_curves(identifiers, market_date, market_data_environment_name=None, market_data_environment_names=None)

Download vol-of-variance nodes using the pricing environment fallback.

Parameters:

• identifiers – List of underlying equity/index InstrumentIdentifier objects.

• market_date – Exact reference date as datetime.datetime at midnight.

• market_data_environment_name – Single preferred source, as an alternative to the list.

• market_data_environment_names (list[str]) – Preferred environments in priority order; do not combine with the single name.

Return type:

ApiGetEqVolOfVarCurvesResponse

Like get_equity_vol_surfaces, this always tries the selected environments in order, then organisation data, then default data. Omitting both environment options starts at organisation scope. Each returned curve’s provider_id identifies the source actually selected. Missing curves are omitted only when no provider has a mark on the requested date; unsupported identifiers return errors. There is no historical-date fallback. Environment-only retrieval is not supported by this method.