This Week's ETF Winners & Losers

Precious metals-related exchange-traded funds were among the best performers of the week, as speculators drove up prices on gold and silver following a surprise 50-basis point interest rate cut during Tuesday's Federal Reserve meeting.

The streetTRACKS Gold Shares (GLD Quote) ETF finished up 3.3% to $72.30. The Market Vectors Gold Miners (GDX Quote) ETF climbed 7.7% to $45.40. The iShares Comex Gold Trust (IAU Quote) ETF rose 3% to $72.28. The PowerShares DB Gold (DGL Quote) ETF added 3.3% to $28.71.

Basic materials-related ETFs were also strong. Among individual stocks, Nucor (NUE Quote), Freeport-McMoRan (FCX Quote) and Alcoa (AA Quote) jumped more than 4.3%.

The Ultra Basic Materials ProShares (UYM Quote) ETF rose 11% to $94.73. The iShares Dow Jones U.S. Basic Materials (IYM Quote) ETF added 5.6% to close at $73.42. The Materials Select Sector SPDR (XLB Quote) ETF climbed 5.3% to $41.58.

Oil securities were also climbers, as crude set multiple records during the week.

The Ultra Oil & Gas ProShares (DIG Quote) ETF rose 9.4% to $114.35. The iShares Dow Jones U.S. Oil & Gas Exploration Index (IEO Quote) added 3.8% to $60.20. The SPDR S&P Oil & Gas Exploration & Production (XOP Quote) ETF finished up 3.5% to $47.76.

On the other hand, Treasury-related ETFs were hit hardest as investors pulled out of bonds and moved money into equities.

The SPDR Lehman Long Term Treasury (TLO Quote) ETF was off 1.8% to $51.14. The iShares Lehman 10-20 Year Treasury Bond (TLH Quote) ETF lost 1.5% to $100.45. The SPDR Barclays Capital TIPS (IPE Quote) ETF was down 0.6% to $48.82.