NBI - Is a Pullback Imminent in the Biotech Sector?

In aggregate, the impressive move in biotechnology has truly been one for the books, but is it sustainable? Although the fundamentals remain intact (biotech is a growth story and, indubitably, one that's here to stay), I think it is fair to assume that we could see a pullback of at least 10% at some point in the near future. What goes up, must come down. The million dollar question is when, and by how much?