An exchange-traded fund (ETF) is a basket of stocks that trades on an exchange with the same simplicity and liquidity of an individual stock. By the end of 2007, 546 ETFs were trading on U.S. exchanges and some 450 were in registration. The total asset growth of ETFs has been equally impressive, doubling every year since 1994 and reaching $5.8 billion in 2007. In Trading ETFs: Gaining an Edge with Technical Analysis money manager Deron Wagner introduces...