Goldman Sachs Group GS, -2.63% is in talks to purchase ETF provider IndexIQ, said a Reuters report Thursday citing sources familiar with the situation. The buyout would allow the bank to introduce passively managed and actively-managed exchange-traded funds within months,the report said. IndexIQ is a relatively small ETF company in terms of assets, ranking outside the top 20, according to ETF.com data. Its ETFs include the IQ Merger Arbitrage ETF QAI, -0.03% and the IQ Hedge Multi-Strategy Tracker ETFMNA, +0.45% In April, Goldman drew attention in the ETF industry by acquiring a smart-beta specialist, Westpeak Global Advisors. By VICTOR REKLAITIS MARKETS WRITER