$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 (2015-09-03), losing -9.11%. The number of shares
that changed hands was 1,557,607, or about 1 times the average daily volume
in the stock.
The closing price was $33.53, amounting to a market cap of $1,390,000,000,
about -10.32% off the highest price in the last 12 months. The stock has
been trading at a range between $11.33 and $37.39.
SRPT is in the Major Pharmaceuticals industry, part of the Health Care
sector.