$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 (2016-09-23), losing -10.95%. The number of shares
that changed hands was 4,351,142, or about 6 times the average daily volume
in the stock.
The closing price was $13.26, amounting to a market cap of $1,620,000,000,
about -39.75% off the highest price in the last 12 months. The stock has
been trading at a range between $12.98 and $22.01.
HMHC is in the Books industry, part of the Consumer Services sector. It
first went public in 2013.