| Exchange traded funds (ETFs) are uniquely structured investments that track indexes, baskets of assets or commodities. Since the first ETF was launched 20 years ago, the ETF industry has grown into a trillion-dollar business.
This growth is due in part to the relative ease with which ETFs can be bought and sold, the ability to sell short and purchase ETFs on margin and the exposure that ETFs provide to commodities - as asset class that not long ago was impractical for individual investors because of the inconvenience and costs associated with transporting, storing and insuring the various commodities............................................Full Article: Source
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