Polypore International Inc.(NYSE:PPO): Wedbush views yesterday’s sell-off in Polypore shares as overdone following LG Chem’s announcement that it intends to vertically integrate with Li-Ion separator manufacturing. The firm estimates LG Chem accounts for, at most, 15%-20% of Polypore’s lithium separator revenue and reiterates an Outperform rating on the stock, despite lowering its price target for shares to $58 from $72.

Amazon.com Inc.(NASDAQ:AMZN): Morgan Stanley removed Amazon.com from its Best Ideas List citing margin and sales growth pressure near-term. Shares remain Overweight rated with a $220 price target.

Whole Foods Market, Inc.(NASDAQ:WFM): RBC Capital believes that Whole Foods continues to have sales momentum and the firm predicts that the company’s comparative sales rose 9% in Q1. The firm raised its target on the stock to $85 from $74 while reiterating an Outperform rating.

Fortinet Inc.(NASDAQ:FTNT): RBC Capital increased its target on Fortinet after the company reported stronger than expected Q4 results. The firm believes that the company’s guidance is conservative and maintains an Outperform rating.

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