The WilderHill New Energy Global Innovation Index (NEX), a basket of 86 stocks in markets around the world, gained 39.7% last year, but was essentially flat in the fourth quarter. The NEX dropped 61% in 2008 and remains well below its November 2007 record.
Gains were uneven across the subsectors included in the index. The nine power storage stocks led the way, gaining 120%, on average, for the year.
