Any exchange-traded fund that seeks to provide high dividend yields by investing in a basket of high-dividend paying common stocks, preferred stocks or REITs. There are dividend ETFs that contain only U.S. domestic stocks and global dividend ETFs, which have an international focus. The indexes used to create dividend ETFs vary by fund manager or custodian, but most contain stocks with a high level of liquidity and above-market dividend yields.

Although dividend ETFs are passively managed around an index, that index may be the result of certain quantitative screens such as companies with a history of increasing their dividends, or larger blue-chip companies with a higher level of perceived safety. The expense ratios of dividend ETFs should be comparable to, or lower than, the cheapest no-load mutual funds with similar investment objectives. As with all ETFs, dividend ETFs can be traded intraday. These types of funds may be part of the core portfolio of an income-seeking or generally risk-averse stock investor.

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An exchange-traded fund (ETF) that is constructed by using various derivatives for the purpose of profiting from a decline in the value of an underlying benchmark. Investing in these ETFs is similar to holding various short positions, or using a combination of advanced investment strategies to profit from falling prices.

Also known as a "Short ETF," or "Bear ETF".

One advantage is that these ETFs do not require the investor to hold a margin account as would be the case for investors looking to enter into short positions.

There are several inverse ETFs that can be used to profit from declines in broad market indexes, such as the Russell 2000 or the Nasdaq 100. In addition, it is possible to buy inverse ETFs that focus on a specific sector, such as financials, energy or consumer staples. Most investors look to purchase inverse ETFs so that they can hedge their portfolios against falling prices.