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

Office Depot, Inc. (symbol: ODP) was one of the worst losers of the trading
day today (2016-04-20), losing -6.12%. The number of shares that changed
hands was 23,197,339, or about 3 times the average daily volume in the
stock.
The closing price was $6.44, amounting to a market cap of $3,540,000,000,
about -31.49% off the highest price in the last 12 months. The stock has
been trading at a range between $4.83 and $9.4.
ODP is in the Other Specialty Stores industry, part of the Consumer
Services sector.
Looking at its valuation, the stock is now trading at 644.0 times earnings.