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

Centene Corporation Common Stoc (symbol: CNC) was one of the worst losers
of the trading day today (2016-09-06), losing -4.84%. The number of shares
that changed hands was 5,228,254, or about 3 times the average daily volume
in the stock.
The closing price was $65.3, amounting to a market cap of $11,150,000,000,
about -13.59% off the highest price in the last 12 months. The stock has
been trading at a range between $47.36 and $75.57.
CNC is in the Medical Specialities industry, part of the Health Care sector.
Looking at its valuation, the stock is now trading at 25.2 times earnings.