Amerigon

Here are the TOP 20 performing companies on the EnergyBoom Clean 100 Index during Q1 2011 (January 3 through March 31).

Shares of Amerigon Incorporated (Nasdaq: ARGN) soared more than 13% Monday -- and another 10% by mid-session today -- after announcing an agreement to acquire its larger competitor W.E.T. Automotive Systems AG (XETRA: WET.DE) for euro 121.6 million ($166.6 million). If the deal is approved by shareholders and regulations, it will end litigation between the two companies over patents for energy efficient thermal seats for automobiles. 

The overall clean tech sector declined dramatically during 2010 compared with strong positive performances for the U.S. overall stock market indices. Most European markets had shaky years and the Shangai Composite Index had the lowest performance among major markets tracked by EnergyBoom (2010 market data below).

However, the real story of 2010 was the spectacular gains of companies that bucked the down-trend for clean tech stocks. Here are the 2010 top 25 companies in the EnergyBoom Clean 100 Index (E•B Clean 100):

EnergyBoom’s five clean sector stock market indices declined last week, with the overall EnergyBoom Clean 100 Index subindex falling 0.76 percent, compared with the S&P 500 Index (-0.82 percent), the Dow Jones Industrial Average (-0.90 percent), and the NASDAQ Composite Index (+0.65 percent).

EnergyBoom’s E•B Efficiency subindex increased 1.03 percent last week, beating EnergyBoom’s other four clean sector indices and beating all broad market indices except the NASDAQ Composite Index which increased 1.13 percent.

Amerigon’s energy efficient Climate Control Seat is used by six automakers in 44 models of cars.