Exchange Traded Funds
Exchange-traded funds have grown popular among US equity investors and traders. Liquidity continues to increase as more institutions trade the shares, and there are even options available on many ETFs.

Exchange traded funds are making it easier than ever for investors to participate in alternative investments such as real estate and speculative markets such as currency markets and specialty sectors.

Commodity and Currency ETFs

Gold
Silver
Copper
Oil and Gas
Currencies
US Dollar
Real Estate
Commodities, other

Geo, Sector, and Index (GSI)

Asia, China
Asia, Hongkong
Asia, Japan
Asia, Singapore
Asia, Taiwan
US, Equity, Index
US, Equity ETFs, Sector
US, Treasuries
International
Emerging Markets

Gold

DZZ Deutsche Bank Gold Double Short ETN
DGP Deutsche Bank Gold Double Long ETN
DGZ DB Gold Short ETN

Silver

SLV ishares Silver
SIVR ETFS Silver Trust
AQQ ProShares Ultra Silver ETF (2x long)
ZSL ProShares UltraShort Silver ETF (2x short)

Copper

JJC Dow Jones-AIG Copper Total Return ETN

Oil

DIG Ultra Oil & Gas ProShares
DUG UltraShort Oil & Gas ProShares
UPL Ultra Petroleum Corp.

US Index

DDM Ultra Dow 30 ProShares Fund
MVV Ultra MidCap 400 ProShares Fund
QLD Ultra QQQ ProShares Fund
UWM Ultra Russell 2000 Fund
SSO Ultra S&P 500 ProShares Fund
SAA Ultra SmallCap 600 Fund
SDD UltraShort SmallCap 600 Fund

Real Estate

DRN Direxion Daily Real Estate Bull 3X Shrs
URE Ultra Real Estate ProShares
FRI S&P REIT First Trust Exchange-Traded Fund
VNQ Vanguard REIT Index ETF
ICF iShares Cohen & Steers Realty Majors
RTL iShares FTSE NAREIT Retail Cp Idx
RWR SPDR Dow Jones REIT SPDR Series Trust
FTY iShares FTSE NAREIT Real Estate 50
IYR iShares Dow Jones US Real Estate
FIO iShares FTSE NAREIT Industrl/Offc Cp Idx
IFNA iShares FTSE EPRA/NAREIT North America
PSR PowerShares Active U.S. Real Estate
REZ iShares FTSE NAREIT Resid Plus Cp Idx
REM iShares FTSE NAREIT Mort Plus Cp Idx

US Sectors

UCTT Ultra Clean Holdings Inc.
SMN UltraShort Basic Materials ProShares
SZK UltraShort Consumer Goods ProShares
SCC UltraShort Consumer Services ProShares
SKF UltraShort Financials ProShares
RXD UltraShort Health Care ProShares
SIJ UltraShort Industrials ProShares
SRS Ultrashort RealEstate ProShares
REW UltraShort Technology ProShares
LTL Ultra Telecommunications ProShares
TLL UltraShort Telecommunications ProShares
SDP UltraShort Utilities ProShares

US Dollar

UUP PowerShares DB US Dollar Index Bullish Fund
UDN PowerShares DB US Dollar Index Bearish Fund
ULE ProShares Ultra Euro ETF - long this fund is the same stance as being short the dollar.

US Treasuries

TBT UltraShort Lehman 20+ Year Treasury ProShares
PST UltraShort Lehman 7-10 Year Treasury ProShares

Asia - China

UGPIX UltraChina ProFund - Investor Class USMF

Asia - Japan

UKPSX Ultra Short Japan Profund USMF

International

UVPSX UltraShort Emerging Markets USMF
UXPSX UltraShort International USMF
UXPIX UltraShort International Profund USMF
UFPIX Ultrashort Latin America Profund USMF