Hi all, 

last weekend I started looking into the US ETF constituents dataset. For some of my algos I want to combine the ETF weights with sector data. I would like to use the sector information for portfolio construction and risk management to e.g. include sector weight constraints relative to the underlying ETF (such as maximum allowed portfolio sector weight deviation from the underlying ETF sector weights). Does anyone know how this could be done? 

From what I understand it is currently not possible to combine the ETF constituents dataset with further coarse / fundamental data (in particular sector information). Any advice or help is highly appreciated!

Best,
Adrian