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

Barnes & Noble, Inc. Common Sto (symbol: BKS) was one of the worst losers
of the trading day today (2015-12-04), losing -16.68%. The number of shares
that changed hands was 9,465,469, or about 7 times the average daily volume
in the stock.
The closing price was $10.04, amounting to a market cap of $765,420,000,
about -47.17% off the highest price in the last 12 months. The stock has
been trading at a range between $9.35 and $19.0.
BKS is in the Other Specialty Stores industry, part of the Consumer
Services sector.
Looking at its valuation, the stock is now trading at 456.36 times earnings.