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

Alnylam Pharmaceuticals, Inc. (symbol: ALNY) was one of the worst losers of
the trading day today (2016-10-06), losing -48.49%. The number of shares
that changed hands was 16,710,124, or about 26 times the average daily
volume in the stock.
The closing price was $36.21, amounting to a market cap of $3,100,000,000,
about -67.3% off the highest price in the last 12 months. The stock has
been trading at a range between $35.31 and $110.75.
ALNY is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2004.