Utilize the input text as a context reference, choose the right relationship between 'iShares' and 'BlackRock' from the options.
Options: manufacturer, chief executive officer, operator, original broadcaster

BlackRock generated a record $17 billion in sustainable iShares ETFs inflows year-to-date, outpacing the $12 billion from all of 2019 as we innovate and expand innovate and expand innovate and expand access to sustainable investment solutions.
operator