Jefferies is out reiterating its Buy rating on shares of Yingli Green Energy (YGE) and has a $17 price target (more than 60% higher than current levels).  The firm views YGE as a top solar player.  Shares aren’t moving on the Buy reiteration in pre-market trading.

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Piper Jaffray upgraded shares of Codexis (CDXS) to Overweight from Neutral and raised the price target to $12 from $11.  That’s a 50% premium to the current price.

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Piper Jaffray downgraded Green Plains Renewable Energy (GPRE) to Neutral from Overweight and set a price target of $11.  However, that would still be a 20% increase over the current price.

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