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

ABIOMED, Inc. (symbol: ABMD) was one of the worst losers of the trading day
today (2015-10-29), losing -28.59%. The number of shares that changed hands
was 6,293,987, or about 8 times the average daily volume in the stock.
The closing price was $70.4, amounting to a market cap of $2,940,000,000,
about -36.39% off the highest price in the last 12 months. The stock has
been trading at a range between $26.5 and $110.68.
ABMD is in the Medical/Dental Instruments industry, part of the Health Care
sector.
Looking at its valuation, the stock is now trading at 24.94 times earnings.