Each week I recap the results of the WilderHill New Energy Global Innovation Index, symbol NEX, and published by New Energy Finance Ltd. The index consists of approximately 90 stocks from 22 countries. The NEX is the tracking index for the PowerShares Global Clean Energy Portfolio ETF (PBD: 9.70 0.00 0.00%). For reference, the NEX has a 52 week high of 436.21 and closed 2008 at 177.99.

For the week ending at market close on Monday the NEX fell 7.1%, finishing at 137.91. The NASDAQ and S&P 500 declined 4.7% and 5.7% for the same period. To save you the trouble of doing the math, the NEX is off 22.5% for the year.

The solar sector led the way down as the sector with the biggest decline, losing 9.2%. The other big sector of the index, wind energy fell by 6.6%.

Energy conversion and energy efficiency sectors were the relatively strongest, dropping 4.6% and 4.8% respectively. Top stock on the gainer’s list, Climate Exchange, rallied on the Obama administration’s signal that a U.S. based cap-and-trade system is in the plans.

Here are the best and worst performing stocks from the NEX for the period:

NEX top gainers since 24/02/09
Climate Exchange CLE + 68.6%
Gushan Environmental GU + 13.7%
GS Yuasa 6674 + 7.7%
Sharp 6753 + 7.1%
Meidensha Corp 6508 + 5.9%

NEX top losers since 24/02/09
Theolia 18481 - 29.1%
Power-One PWER - 23.7%
Solon SOO1 - 23.1%
Suntech Power STP – 21.5%
Energy Conversion Devices ENER - 19.5%