
S&P Select Utilities SPDR (AMEX:XLU) tracks the 32 utilities in the S&P 500.
Utilities Holdrs (AMEX:UTH) has 19 names that Merrill Lynch picked.
IShares Dow Jones U.S. Utilities Sector Index (AMEX:IDU) is a basket of 76 stocks. The top 10 names make up 43% of the portfolio.
Vanguard Utilities (AMEX:VPU) is 90-stock index of large-, mid- and small-cap U.S. companies. Despite the quantity, the 10 largest firms account for 42% of assets.
As of Friday's close, Utilities Holdrs had the best one-month return, 3.4%. But of the four, it sports the lowest Relative Strength Rating of 66. The other three share similar Relative Strength Ratings in the 60s and roughly equal Accumulation/Distribution Ratings of B+.
S&P Select Utilities SPDR costs the least per share at about 38 a share. It's also the most liquid and trades an average 3.2 million shares daily.
The second-largest fund, iShares Dow Jones U.S. Utilities Sector Index, trades merely 52,000 shares daily on average.
