Raptor Pharmaceutical Corp (RPTP)

Although speculation continues over when the Federal Reserve will hike interest rates, investors seem to have brushed aside concerns over a rate hike for the immediate future.

The rumor mill is working hard right now in the biotech space, and the latest word is that Retrophin Inc (NASDAQ:RTRX), the company founded by Martin Shkreli, is pitching to buy Raptor Pharmaceutical ...

Twitter Inc. (NYSE:TWTR), 58.com Inc (ADR) (NYSE:WUBA), Staples, Inc. (NASDAQ:SPLS), L Brands Inc (NYSE:LB), and Raptor Pharmaceutical Corp.

Kevin Kotler's healthcare-focused fund Broadfin Capital held a 13F portfolio valued at about $1.04 billion at the end of the first quarter, according to its latest filing.

Although the average hedge fund has been struggling to beat broader market benchmarks in recent years, the hedge fund industry as a whole has been constantly growing.

Among the largest decliners today are Sonic Corporation (NASDAQ:SONC), down by a little over 8%, CONN's, Inc. (NASDAQ:CONN), slipping by just under 5%, and Raptor Pharmaceutical Corp.

Three healthcare stocks have been very active during both the pre-market and morning trading sessions today. Raptor Pharmaceutical Corp.

Following a downgrade from Oppenheimer analyst Christopher Marai, Raptor Pharmaceutical Corp. (NASDAQ:RPTP)'s stock fell by more than 12% on Monday.

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