What short squeezes give to depressed stocks, they often quickly take away. A123 Systems (AONE -17.1%) and First Solar (FSLR -6%) are each returning a big chunk of yesterday's massive gains (I, II). Wunderlich's comments are contributing to A123's decline, while First Solar's drop is partly due to a cautious JPMorgan note that argues yesterday's rally didn't feature "much, if any, structural long buying."
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