How to use symbol_conversion.Definition for a specific date?

Jasdeep · 2025-05-01T12:04:01+00:00

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I'm using the following to convert from ISIN to RIC:

ld.open_session()
response = symbol_conversion.Definition(symbols = ['TH8319010Z06'],
from_symbol_type = symbol_conversion.SymbolTypes.ISIN,
to_symbol_types = symbol_conversion.SymbolTypes.RIC,
asset_class = symbol_conversion.AssetClass.EQUITIES,
).get_data()

eikon_map = response.data.df
ld.close_session()

It used to work but then I think because the stock has become delisted it doesn't return a value.

Ideally I'd like to specify an as of date / effective date to run the query for so I can reliably reproduce the same data and not be impacted by delistings.

Kind Regards

Jasdeep

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Accepted answers

Jirapongse

@Jasdeep

Thank you for reaching out to us.

Please try this one:

response = symbol_conversion.Definition(symbols = ['TH8319010Z06'],
    from_symbol_type = symbol_conversion.SymbolTypes.ISIN,
    to_symbol_types = symbol_conversion.SymbolTypes.RIC,
    asset_class = symbol_conversion.AssetClass.EQUITIES,
    asset_state=symbol_conversion.AssetState.INACTIVE                                     
    ).get_data()

response.data.df

All comments

Jirapongse

@Jasdeep

Thank you for reaching out to us.

Please try this one:

response = symbol_conversion.Definition(symbols = ['TH8319010Z06'],
    from_symbol_type = symbol_conversion.SymbolTypes.ISIN,
    to_symbol_types = symbol_conversion.SymbolTypes.RIC,
    asset_class = symbol_conversion.AssetClass.EQUITIES,
    asset_state=symbol_conversion.AssetState.INACTIVE                                     
    ).get_data()

response.data.df

Jasdeep

Thank you for this - this symbol is part of a long list (most of which are still active), so is there a wat to query the both the active and inactive symbols, and where in active one doesn't exist, use the inactive one?

Kind regards,

Jas

Jirapongse

@Jasdeep

The symbol_conversion module sets the asset_state to ACTIVE by default.

I couldn't find a way to unset it.

To query both active and inactive, you need to use the search.lookup instead. For example:

response = search.lookup.Definition(
    view=search.Views.SEARCH_ALL,                         
    scope="IssueISIN",                                                      
    terms="TH8319010Z06,US5949181045",                
    select="BusinessEntity,DocumentTitle,RIC",               
).get_data()

response.data.df

The example is on GitHub.

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