By Carl Delfeld of the Chartwell ETF Advisor
Before you buy your next exchange-traded fund or ETF, make sure you look under the hood and see what is in the basket of securities. And remember, names can be deceiving.
Dan Culloton of Morningstar recognizes that there aren't many pure nanotechnology plays out there, for example, and the few that exist, such as Nanophase Technologies (NasdaqGM:NANX - News) or Altair Nanotechnologies (NasdaqCM:ALTI - News), can best be described as unprofitable nanofirms. That explains why a lot of big companies whose main business isn't nanotechnology show up in PowerShares Lux Nanotech Portfolio (AMEX:PXN - News) such as General Electric (NYSE:GE - News), Hewlett-Packard (NYSE:HPC - News), and Toyota Motor (NYSE:TM - News). These companies are researching ways to use nanotech to improve everything from aircraft engines to printer ink to car components, but those efforts are often small parts of their operations.
Another example Culloton describes is the Technology Select Sector SPDR (AMEX:XLK - News), for example. The sector bellwethers are there-- Microsoft (NasdaqGS:MSFT - News), Cisco Systems (NasdaqGS:CSCO - News), and Google (NasdaqGS:GOOG - News)--but so are a couple of massive telecommunications service providers. Indeed, AT&T (NYSE:T - News) and Verizon Communications (NYSE:VZ - News) are both top-10 holdings and help give this fund a bigger telecom stake than any other conventional or exchange-traded technology fund.