2015 Biotech Stock Preview: Rhythms Of The “PermaBull” By: TalkMarkets January 07, 2015 at 13:21 PM EST Life Science stocks had another big year in 2014 up 48% tracking gains for the overall healthcare sector up 35%. Over 10 years the return is 300%. Read More >> Related Stocks: Biotechnology Index NYSE ETF Gilead Sciences HEALTHCARE