$XENT is one of biggest losers #stocks today. read more:

Intersect ENT, Inc. (symbol: XENT) was one of the worst losers of the
trading day today (2015-10-01), losing -12.01%. The number of shares that
changed hands was 1,219,334, or about 3 times the average daily volume in
the stock.
The closing price was $20.59, amounting to a market cap of $576,310,000,
about -37.32% off the highest price in the last 12 months. The stock has
been trading at a range between $15.06 and $32.85.
XENT is in the Medical/Dental Instruments industry, part of the Health Care
sector. It first went public in 2014.