* Oil and Gas: One of several ETFs in this sector is the Energy Select Sector SPDR (NYSEARCA:XLE), which have reaped the rewards of the global commodity boom that has tripled the cost of oil. XLE is up 27% for 3-years.
* Electric Power: A decline in bond yields has moved investors to reliable dividend paying utilities. Utilities Select Sector SPDR (NYSEARCA:XLU) and other utility ETFs have done well in a broad market characterized by stagnation. Over the past 3-years, XLU is up 19%.
* Metals and Mining: Raw materials have risen along with the commodity boom which has sharply increased the price of metal. Metals and Mining SPDR (NYSEARCA:XME) has India and China's demand for raw materials to thank. XME is a new ETF, but it is up 15% over the past 6-months.
Many of the factors that have kept these sectors aloft are changing or may do so soon. Risks for environmental regulation are becoming more obvious, although Wall Street has yet to reward companies that think green, it may happen sooner than we think.
XLE v. XME v. XLU 1-yr chart