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

Wayfair Inc. Class A Common Sto (symbol: W) was one of the worst losers of
the trading day today (2015-08-31), losing -11.65%. The number of shares
that changed hands was 3,691,775, or about 3 times the average daily volume
in the stock.
The closing price was $37.3, amounting to a market cap of $3,130,000,000,
about -34.38% off the highest price in the last 12 months. The stock has
been trading at a range between $16.74 and $56.84.
W is in the Catalog/Specialty Distribution industry, part of the Consumer
Services sector. It first went public in 2014.