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

CVS Health Corporation Common S (symbol: CVS) was one of the worst losers
of the trading day today (2016-11-08), losing -11.82%. The number of shares
that changed hands was 50,225,407, or about 9 times the average daily
volume in the stock.
The closing price was $73.53, amounting to a market cap of $78,400,000,000,
about -31.07% off the highest price in the last 12 months. The stock has
been trading at a range between $69.3 and $106.67.
CVS is in the Medical/Nursing Services industry, part of the Health Care
sector.
Looking at its valuation, the stock is now trading at 16.92 times earnings.