Biotech analyst discusses her top stock picks: Biogen & Sarepta Therapeutics

The biotech index has been up nearly 38 percent since its March lows. Big movers include TG Therapeutics and Arena Pharmaceuticals. Alethia Young, Cantor Fitzgerald biotech analyst, joins 'Closing Bell' to talk about the biotech stocks she's excited about.
Mon, Sep 28 20204:02 PM EDT