What is the relationship between iShares and BlackRock in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

This month, BlackRock BlackRock added 11 new products to its currency-hedged iShares lineup bringing it’s total to 16; WisdomTree now offers 16 products as well and Deutsche Bank Deutsche Bank has 14.

Answer: operator