$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 (2016-03-23), losing -12.87%. The number of shares that
changed hands was 4,332,500, or about 8 times the average daily volume in
the stock.
The closing price was $29.1, amounting to a market cap of $838,750,000,
about -67.32% off the highest price in the last 12 months. The stock has
been trading at a range between $26.28 and $89.04.
SAGE is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2014.