Relypsa Lost Major Ground; Feuerstein Tweets Favus Report Said 'Nothing New'

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(NASDAQ: RLYP) were trading higher by more than 8 percent early Friday morning. The stock plunged more than 13 percent on Thursday following a bear research report by Elliot Favus of Favus Institutional Research.Adam Feuerstein, a senior columnist with The Street and known biotech expert, took to Twitter and said that the Favus' bear thesis contained "nothing new" and "echoes" a similar thesis presented by Andrew Berens, a biotechnology analyst at FBR Capital Markets.

$RLYP - Favus' bear thesis for Veltassa echoes what you've already read from Andy Berens. I read nothing new in this morning's report.
— Adam Feuerstein (@adamfeuerstein) January 7, 2016

I like $RLYP but the Twitter cult around this stock and its prospects is unsettling. You people need to chill the fuck out.
— Adam Feuerstein (@adamfeuerstein) January 7, 2016

I'm blocking every fuktard $RLYP Twitter cheerleader. I don't care how much you love this stock. Go tell someone else. Leave me out of it.
— Adam Feuerstein (@adamfeuerstein) January 7, 2016

The stock was in a downtrend before Thursday's steep selloff; Shares opened the new year around the $29 level.The stock traded recently at $22.28, up 5 percent in Friday's pre-market session.