$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 (2016-07-26), losing -8.49%. The number of shares
that changed hands was 12,214,377, or about 6 times the average daily
volume in the stock.
The closing price was $68.87, amounting to a market cap of $11,740,000,000,
about -8.87% 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 31.05 times earnings.