I got this error:
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KeyError: Equity(28245, symbol='BWS_WI', asset_name='BROWN SHOE COMPANY INC. WI', exchange='NEW YORK STOCK EXCHANGE', start_date=Timestamp('2006-03-29 00:00:00+0000', tz='UTC'), end_date=Timestamp('2007-04-02 00:00:00+0000', tz='UTC'), first_traded=None)
There was a runtime error on line 132.
Any idea why the error? And what does the first_traded flag mean? I tried searching the help page, but found no information.
Apparently the _WI suffix means "when issued" so does this mean that the security can't be transacted? If so, why is it showing up in an algo?