ETF Symbol: Price 28.2 Volume 66900 Avg Vol 120490 RSf 51.7 $Vol(21d) 3m 52 wk High 33.47 52 wk Low 22.04 (as of 2010-09-09) Total Returns: 1 day 1.1% 5 day 3.0% 1 month 0.6% 3 month 5.5% 6 month -8.1% 9 month 7.3% 1 year 11.4%   Compare Funds: Correlated Group: Energy (View cGroup) (All Groups)

Correlated Funds

Most Correlated   Least Correlated iShares Dow Jones U.S. Oil Equip & Svcs IEZ 0.99 Rydex Inverse 2x S&P 500 ETF RSW -0.88 Vanguard Energy VIPERs VDE 0.96 Proshares UltraShort S&P500 SDS -0.88 Select Sector SPDR Fund - Energy Select Sector XLE 0.96 ProShares Short S&P 500 SH -0.89 iShares Dow Jones U.S. Energy IYE 0.96 ProShares UltraPro Short S&P 500 SPXU -0.89 Oil Service HOLDRS OIH 0.96 Proshares UltraShort Midcap 400 MZZ -0.89 Proshares Ultra Oil & Gas DIG 0.96 Direxion Large Cap Bear 3X Shares BGZ -0.89 Direxion Energy Bull 3X Shares ERX 0.95 Proshares UltraShort Basic Materials SMN -0.90 iShares S&P Natural Resources Index Fund IGE 0.95 Direxion Daily Mid Cap Bear 3X Shares MWN -0.90 iShares Dow Jones U.S. Oil & Gas Expl & Prod IEO 0.94 Direxion Energy Bear 3X Shares ERY -0.95 First Trust ISE-Revere Natural Gas Index Fund FCG 0.93 Proshares UltraShort Oil & Gas DUG -0.96

These 126 day (6 month) correlations can be considered short term, focusing on recent price movements. Correlations are only calculated for actively traded funds. As of: 2010-09-03.

Exchange-traded funds are similar to index funds that trade like a single stock. Until the advent of the ETF, it was impossible to trade indexes this easily through an equity account. Most ETFs are relatively static in make-up, like the SPY or QQQQ index funds. Others, like some of the PowerShares funds, are dynamic and the holdings are changed routinely. ETFs have risks similar to stocks in that their value can rise or fall at the discretion of the marketplace. Some ETFs, like international funds and narrowly based indexes, have special risks that the investor should be aware of. However, used properly ETFs can provide an efficient and effective investment vehicle for achieving results that were near impossible for the typical investor to achieve prior to their development.