Some ETFs

short ultrashort long ultralong
DJIA DOG DXD DIA DDM
S&P SH SDS SPY SSO
Russel2k RWM TWM IWM UWM
QQQQ PSQ QID QQQQ QLD
midcap400 MYY MZZ MDY MVV

ultrashort China FXI is FXP
QID Ultrashort QQQQ
TWM Ultrashort Russell 2000
SDS Ultrashort S&P500
DXD Ultrashort Dow 30
MZZ Ultrashort MidCap400
SSG ultrashort semiconductor
REW UltraShort Technology
EEV UltraShort Emerging Mrkts
SRS UltraShort Real Estate
SKF UltraShort Financials
SCC ultrasort consumer

Powershares also offers at least eight ETFs based on commodity prices. They include agriculturals (DBA), Base Metals (DBB), Energy (DBE), Precious Metals (DBP), and the DB Commodities Tracking Fund (DBC) which is a commodity basket. Chart 9 shows that commodity fund surging to a new record high today which matched a similar move by the CRB Index. Agriculaturals continue to lead the commodity advance (Chart 10). Precious metals and energy were also strong, with gold gaining $13 and oil jumping 4%. Although industrial metals like copper have been the weakest commodity group over the past year, even they had a strong week.(Murphy 2008.2-08)