$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 (2016-09-15), losing -7.49%. The number of shares
that changed hands was 5,249,237, or about 2 times the average daily volume
in the stock.
The closing price was $30.02, amounting to a market cap of $1,440,000,000,
about -28.47% off the highest price in the last 12 months. The stock has
been trading at a range between $8.0 and $41.97.
SRPT is in the Major Pharmaceuticals industry, part of the Health Care
sector.