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

Magellan Health, Inc. (symbol: MGLN) was one of the worst losers of the
trading day today (2015-07-27), losing -13.09%. The number of shares that
changed hands was 691,040, or about 4 times the average daily volume in the
stock.
The closing price was $56.79, amounting to a market cap of $1,550,000,000,
about -22.21% off the highest price in the last 12 months. The stock has
been trading at a range between $52.37 and $73.0.
MGLN is in the Hospital/Nursing Management industry, part of the Health
Care sector.
Looking at its valuation, the stock is now trading at 25.12 times earnings.