The Ubika Sustainability 20 (US20) index slipped 6.3% this month, falling short of the 4.6% rise in the Dow Jones Sustainability North America 40 and an 8.5% surge in the TSX Venture index. Northern Power Systems Corp. (TSX: NPS) was the top-performing component company during the past month, surging 80%. Northern Power manufactures and sells wind turbines and power technology products.

See Frank Carnevale’s latest Green Investing article: “CleanTech is Thriving Even as the Oil Price Slides”

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