I try to convert a list to tickers (such as IBM, AAPL) to RICs, such that I can carry out later queries. I have ~ 4000 of such tickers, which include delisted ones (such as OB). It is not wise to check them manually one-by-one, therefore I am looking for built-in methods to do the conversion.
I've tried two methods: get_data() and get_symbology(). For each of the command I can pass the list of tickers in, and hopefully the return values would contain the corresponding RICs, if applicable.
The get_data() method didn't do a good job, for example, for the ticker 'CALX', it won't return the corresponding RIC (should be CALX.K).
For CALX, the get_symbology() didn't return me the RIC either, but it return a ISIN. I then can call get_symbology() again, using ISIN as lookup argument, to get me the CALX.K. Therefore, I can manage to covert tickers to RIC through ISIN.
So far it seems that get_symbology() would solve my problem, however, I found I still missed few ticker --> RIC conversion. For example, if I am looking to convert the ticker SIR (RIC = SIR.O, from desktop version), there is no anything else available from ek.get_symbology('SIR', from_symbol_type='ticker'), other than its own ticker. Therefore, my ISIN solution won't work either.
Can someone wade in this problem?