How to retrieve ETF constituents(holdings) weightings information by bloomberg API?
**xbbg or pdblp **
below is for Index and it's working
import pdblp
con = pdblp.Bcon()
con.start()
con.bulkref('BCOM Index','INDEX_MWEIGHT')
but, not working ro ETF like 'IVV US Equity' .
the output information is what i want