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

Houghton Mifflin Harcourt Compa (symbol: HMHC) was one of the worst losers
of the trading day today (2016-08-04), losing -13.08%. The number of shares
that changed hands was 4,208,174, or about 4 times the average daily volume
in the stock.
The closing price was $15.08, amounting to a market cap of $1,860,000,000,
about -40.37% off the highest price in the last 12 months. The stock has
been trading at a range between $14.4 and $25.29.
HMHC is in the Books industry, part of the Consumer Services sector. It
first went public in 2013.