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

Sage Therapeutics, Inc. (symbol: SAGE) was one of the worst losers of the
trading day today (2016-07-13), losing -8.18%. The number of shares that
changed hands was 3,046,434, or about 4 times the average daily volume in
the stock.
The closing price was $42.43, amounting to a market cap of $1,360,000,000,
about -45.24% off the highest price in the last 12 months. The stock has
been trading at a range between $26.28 and $77.48.
SAGE is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.