$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 (2016-09-29), losing -8.78%. The number of shares
that changed hands was 1,377,931, or about 2 times the average daily volume
in the stock.
The closing price was $69.94, amounting to a market cap of $6,000,000,000,
about -36.85% off the highest price in the last 12 months. The stock has
been trading at a range between $49.96 and $110.75.
ALNY is in the Major Pharmaceuticals industry, part of the Health Care
sector. It first went public in 2004.