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

Generac Holdlings Inc. Common S (symbol: GNRC) was one of the worst losers
of the trading day today (2015-10-02), losing -5.18%. The number of shares
that changed hands was 1,641,216, or about 2 times the average daily volume
in the stock.
The closing price was $27.62, amounting to a market cap of $1,910,000,000,
about -45.6% off the highest price in the last 12 months. The stock has
been trading at a range between $26.81 and $50.77.
GNRC is in the Metal Fabrications industry, part of the Consumer Durables
sector. It first went public in 2010.
Looking at its valuation, the stock is now trading at 16.14 times earnings.