Looking for historical credit rating bond data for a large amount of bonds on Eikon

I am looking to find historical credit ratings for a vast amount of bonds (spanning about 10 years). I can't search for a specific date because they were all issued at different times. When using codebook, I managed to find ratings for a large number of bonds but that was the rating at the time of my search instead of historical.
Here is the code I used -
import eikon as ek
import pandas as pd
ek.set_app_key('...')
isins = [ ]
fields = ['TR.GR.Rating','TR.GR.RatingSourceCode' ]
data, err = ek.get_data(isins, fields)
if err:
print(f"An error occurred: {err}")
else:
print(data)
except Exception as e:
print(f"An error occurred: {e}")
data.to_csv('bond_credit_ratings.csv', index=False)
If anyone knows how to access historical credit ratings for large amounts of bonds at once, please let me know. Any help with this would be very appreciated
Best Answer
-
Thank you for reaching out to us.
I checked the Data Item Browser tool and found that the TR.GR.Rating field supports the series data.
Please contact the helpdesk team via MyAccount regarding how to set these parameters for bond instruments.
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