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

Trex Company, Inc. Common Stock (symbol: TREX) was one of the worst losers
of the trading day today (2015-08-03), losing -14.39%. The number of shares
that changed hands was 4,205,923, or about 14 times the average daily
volume in the stock.
The closing price was $38.84, amounting to a market cap of $1,230,000,000,
about -32.71% off the highest price in the last 12 months. The stock has
been trading at a range between $30.17 and $57.72.
TREX is in the Forest Products industry, part of the Basic Industries
sector.
Looking at its valuation, the stock is now trading at 26.86 times earnings.