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

Sarepta Therapeutics, Inc. (symbol: SRPT) was one of the worst losers of
the trading day today (2016-10-17), losing -6.39%. The number of shares
that changed hands was 4,713,706, or about 1 times the average daily volume
in the stock.
The closing price was $48.94, amounting to a market cap of $2,340,000,000,
about -23.21% off the highest price in the last 12 months. The stock has
been trading at a range between $8.0 and $63.73.
SRPT is in the Major Pharmaceuticals industry, part of the Health Care
sector.