The deal, if finalized, would enable Goldman to introduce passively managed and actively managed exchange traded funds within months. A Goldman Sachs Asset Management spokeswoman declined to comment. A call and email to Adam Patti, the chief executive of IndexIQ, was not immediately returned. IndexIQ, which has $1.2 billion in ETF assets under management, offers a series of alternative investment strategies, and would fit well into Goldman Sachs Asset Management, which caters to high net worth investors, said David Nadig, chief investment officer of ETF research firm ETF.com.