One of the great things about exchange-traded funds is that investors looking to build a diversified portfolio can use ETFs to do so.  Following is a list of ETFs representing various asset classes around the globe from which an investor can build many different portfolios.

Fixed-Income/Bond ETFs:

1. iShares Barclays TIPS Bond Fund (NYSE:TIP):  About the company: iShares Barclay US Treasury Inflation Protected Securities Fund is an exchange-traded fund incorporated in the USA.  The Fund will track the Barclays Capital US Treasury Inflation Notes Index.  The Index measures the performance of inflation protected public obligations of the US Treasury, also know as “TIPS”.
2. Barclays 1-3 Year Treasury Bond (NYSE:SHY):  About the company: iShares Barclay 1-3 Year Treasury Bond Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks results that correspond to the price and yield performance of the short-term sector of the United States Treasury market as defined by the Barclays Captal 1-3 Year Treasury Index.
3. iShares Barclays 7-10 Year Treasury Bond Fund (NYSE:IEF): About the company: iShares Barclays 7-10 Year Treasury Bond Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks results that correspond to the price and yield performance of the intermediate-term sector of the United States Treasury marker as defined by the Barclays Capital 7-10 Year Treasury Index.  The Fund invests 95% of its assets in US government bonds.
4. iShares Barclays 20+ Year Treasury Bond Fund (NYSE:TLT): About the company: iShares Barclays 20+ Year Treasury Bond Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks results that correspond to the price and yield performance of the United States Treasury market as defined by the Barclays Capital 20+ Year Treasury Index.  The Fund invests 95% of its assets in US Government bonds.
5. iShares Barclay Aggregate Bond Fund (NYSE:AGG): About the company: iShares Barclays Aggregate Bond Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond to the price and yield performance of the total United States investment grade bond market as defined by the Barclays Capital US Aggregate Index.

Commodities ETFs:

1. iShares Gold Trust (NYSE:IAU):  About the company: iShares Gold Trust is an investment fund incorporated in the USA.  The Fund issues shares representing fractional undivided beneficial interests in its net assets.  The assets of the Trust will consist primarily of gold held by the custodian on behalf of the Trust.
2. iShares Silver Trust (NYSE:SLV): About the company: iShares Silver Trust is a trust formed to invest in silver.  The assets of the trust consist primarily of silver held by the custodian on behalf of the trust.  The objective of the trust is for the shares to reflect the price of silver owned by the trust, less the trust’s expenses and liabilities.
3. iShares GSCI Commodity-Indexed (NYSE:GSG): About the company: iShares S&P GSCI Commodity-Indexed Trust is an exchange-traded fund incorporated in the USA.  The Fund’s objective is that its performance will correspond generally to the performance of the S&P GSCI Total Return Index.  The Fund invests in a diversified group of commodities.
4. United States Oil Fund LP (NYSE:USO): About the company: United State Oil Fund LP is an exchange-traded fund incorporated in the USA.  The Fund’s objective is for the units’ net asset value to reflect the performance of the spot price of West Texas Intermediate light.  The Fund invests in futures contracts for West Texas Intermediate light.

Global Equities/Emerging Markets ETFs:

1. iShares FTSE/Xinhua China 25 Index Fund (NYSE:FXI):  About the company: iShares FTSE/Xinhua China 25 Index Fund is an exchange traded fund incorporated in the USA.  The Fund seeks investment results that correspond to the price and yield performance of the FTSE/Xinhua China 25 Index.  The Fund invests 90% of its assets in the underlying index, which represents the performance of the larges companies in the China equity market.
2. iShares MSCI EAFE Index Fund (NYSE:EFA): About the company: iShares MSCI EAFE Index Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective seeks investment results that correspond to the performance of the MSCI EAFE Index.  The Fund will concentrate its investment in stocks in the MSCI EAFE Index to approximately the same extent the Index is so concentrated.
3. iShares MSCI Emerging Index Fund (NYSE:EEM):  About the company: iShares MSCI Emerging Markets Index is an exchange-traded fund incorporated in the USA.  The Fund seeks results that correspond generally to the price and yield performance of the MSCI TR Emerging Markets Index.  The Fund will concentrate its investments in a particular industry or geographic region to approximately the same extent the Index is so concentrated.
4. iShares S&P Europe 350 Index (NYSE:IEV): About the company: iShares S&P Europe 350 Index Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond to the performance of the S&P Europe 350 Index.  The Index measures the performance of the stocks of leading companies in countries such as: Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, and the Netherlands.
5. iShares S&P Global 100 Index Fund (NYSE:IOO):  About the company: iShares S&P Global 100 Index Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective seeks investment results that correspond to the performance of the S&P Global 100 Index.  The Index is designed to measure the performance of large trans-national companies that are of major importance in the global markets.

US Equities ETFs:

1. iShares S&P 100 Index Fund (NYSE:OEF):  About the company: iShares S&P 100 Index Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the S&P 100 Index.  The Fund uses a Replication strategy to try and track the Index, which consists of blue chip stocks from diverse industries.
2. iShares S&P 500 Index Fund (NYSE:IVV): About the company: iShares S&P 500 Index Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the S&P 500 Index.  The Fund uses a Replication strategy to obtain its objective.  The Index measures the performance of the large-capitalization sector of the US equity market.
3. iShares S&P 1500 Index Fund (NYSE:ISI): About the company: iShares S&P 1500 Index Fund is an exchange-traded fund incorporated in the USA.  The Fund is designed to track the S&P 1500 Index, which combines that S&P 500, S&P MidCap 400 and the S&P SmallCap 600 Indices, and represents approximately 90% of the total US equity market capitalization.
4. iShares Dow Jones US Total Market (NYSE:IYY): iShares Dow Jones US Index Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective seeks investment results that correspond to the performance of the Dow Jones US Total Market Index.
   
5. iShares Morningstar Large Core Index (NYSE:JKD): iShares Morningstar Large Core Index Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond to the price and yield performance of the Morningstar Large Core Index.  The Index measures the performance of companies in the large-capitalization sector of the US equity market that are publicly traded on the NYSE, AMEX, or NASDAQ.
6. iShares Morningstar Mid Core Index (NYSE:JKG): About the company: iShares Morningstar Mid Core Index Fund is an exchange-trade fund incorporated in the USA.  The Fund seeks investment results that correspond to the price and yield performance of the Morningstar Mid Core Index.  The Index measures the performance of companies in the large-capitalization sector of the US equity market that are publicly traded on the NYSE, AMEX, or NASDAQ.
7. iShares Morningstar Small Core Index (NYSE:JKJ): About the company: iShares Morningstar Small Core Index Fund is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond to the price and yield performance of the Morningstar Small Core Index.  The Index measures the performance of companies in the small-capitalization sector of the US equity market that are publicly traded on the NYSE, AMEX or NASDAQ.

Leveraged Long ETFs:

1. ProShares Ultra Dow30 (NYSE:DDM): About the company: Ultra Dow30 ProShares is an exchange-traded fund incorporated in the USA. The Fund seeks daily investment results that correspond to twice (200%) the daily performance of the Dow Jones Industrial Average.
   
2. ProShares Ultra S&P 500 (NYSE:SSO): About the company: Ultra S&P500 ProShares is an exchange-traded fund incorporated in the USA. The Fund seeks daily investment results that correspond to twice (200%) the daily performance of the S&P 500 Index.
3. ProShares Ultra QQQ (NYSE:QLD): About the company: Ultra QQQ ProShares is an exchange-traded fund incorporated in the USA. The Fund seeks daily investment results that correspond to twice (200%) the daily performance of the NASDAQ-100 Index.
4. ProShares Ultra MidCap400 (NYSE:MVV): About the company: Ultra MidCap400 ProShares is an exchange-traded fun incorporated in the USA. The Fund seeks daily investment results that correspond to twice (200%) the daily performance of the S&P MidCap400 Index.

Inversely Correlated ETFs (Shorts):

1. ProShares Short Dow30 (NYSE:DOG): About the company: Short Dow30 ProShares is an exchange-traded fund incorporated in the USA. The Fund seeks investment results that correspond to the inverse (opposite) of the daily performance of the Dow Jones Industrial Average.
2. ProShares Short S&P 500 (NYSE:SH): About the company: Short S&P500 ProShares is an exchange-traded fund incorporated in the USA. The Fund seeks daily investment results that correspond to the inverse (opposite) of the daily performance of the S&P 500 Index.
3. ProShares Short QQQ (NYSE:PSQ):  About the company: Short QQQ ProShares is an exchange-traded fund incorporated in the USA.  The Fund seeks daily investment results that correspond to the inverse (opposite) of the daily performance of the NASDAQ-100 Index.
4. ProShares Short MidCap 400 (NYSE:MYY):  About the company: Short MidCap 400 ProShares is an exchange-traded fund incorporated in the USA.  The Fund seeks investment results that correspond to the inverse (opposite) of the daily performance of the S&P MidCap 400 Index.
   

Inversely Correlated & Leveraged ETFs (Double shorts):

1. ProShares UltraShort Dow30 (NYSE:DXD):  About the company: UltraShort Dow 30 ProShares is an exchange-traded fund incorporated in the USA.  The Fund seeks daily investment results that correspond to twice the inverse of the daily performance of the Dow Jones Industrial Average.
2. ProShares UltraShort S&P 500 (NYSE:SDS):  About the company: UltraShort S&P 500 ProShares is an exchange-traded fund incorporated in the USA.  The Fund seeks daily investment results that correspond to twice the inverse of the daily performance of the S&P 500 Index.
3. ProShares UltraShort QQQ (NYSE:QID):  About the company: UltraShort QQQ ProShares is an exchange-traded fund incorporated in the USA.  The Fund seeks daily investment results that correspond to twice the inverse of the daily performance of the NASDAQ-100 Index.
4. ProShares UltraShort MidCap 400 (NYSE:MZZ): About the company: UltraShort MidCap 400 ProShares is an exchange-traded fund incorporated in the USA.  The Fund seeks daily investment results that correspond to twice the inverse of the daily performance of the S&P MidCap 400 Index.

U.S. Equity Sectors:

1. SPDR Select Sector Fund – Financials (NYSE:XLF):  The Financial Select Sector SPDR Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective is to provide investment results that, before expenses, correspond to the performance of the Financial Select Sector.  The Index includes financial services firms whose business’ range from investment management to commercial and business banking.
2. iShares Dow Jones US Basic Materials (NYSE:IYM):  About the company: iShares Dow Jones US Basic Materials Sector Index Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective seeks investment results that correspond to the performance of the Dow Jones US Basic Materials Sector Index.  The Fund will concentrate its investments in this sector to approximately the same extent the Index is concentrated.
3. Energy Select SPDR Fund (NYSE:XLE): About the company: Energy Select Sector SPDR Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective is to provide investment results that correspond to the performance of The Energy Select Sector Index.  The Index includes companies that develop & produce crude oil & natural gas, provide drilling and other energy related services.
4. SPDR Select Sector Fund – Industrials (NYSE:XLI): About the company: Industrial Select Sector SPDR Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective is to provide investment results that correspond to the performance of The Industrial Select Sector Index.  The Index includes companies involved in industrial products, including electrical & construction equipment, waste management and machinery.
5. Consumer Discretionary Select Sector SPDR Fund (NYSE:XLY):  About the company: Consumer Discretionary Select Sector SPDR Fund is an exchange-traded fund incorporated in the USA.  The Fund’s objective is to provide investment results that correspond to the price and yield performance of the Consumer Discretionary Select Sector Index.  The Index includes companies in the automobile, consumer durables, apparel, media, hotel, and leisure industries.
6. Semiconductor HOLDRs Trust (NYSE:SMH): About the company: Semiconductor HOLDRs Trust issues depositary receipts called Semiconductor HOLDRs.  The Trust will hold shares of common stock issued by companies that develop, manufacture and market integrated circuitry and other products made from semiconductors which allow for increased speed and functionality in components for computers and other electronic devices.

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