This ETF has a lot of potential in the future.  It has a diverse mix
of alternative energy companies (Mostly wind and solar) but is also
more focused then many other alternative energy ETFs, it is made up of
only the top 30 largest and most heavily traded alternative energy
companies.  In addition, this is also still down about 12% YTD so
there is definitely quite a bit of upside potential in the near term.
If you look at the charts GEX basically follows energy company
indexes, but during extended up trends, for instance during time
periods with high oil prices, it tends to break out to much higher
levels.  In addition it will probably not take as large of a fall if
oil prices do decrease.

More upside will come from the upcoming presidential election, as
alternative energy will most definitely be one of the hottest topics.
Basically all factors globally indicate that alternative energy has
huge potential in the future, and companies that are leading the
industry now, mostly the ones this index is made up of, will be the
leaders in the future.    Besides the huge potential in the short term
(next 6 - 12 months), this is an ETF that you can hold for a decade
and probably rake in a 300%+ return.