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

Knowles Corporation Common Stoc (symbol: KN) was one of the worst losers of
the trading day today (2015-10-27), losing -18.02%. The number of shares
that changed hands was 6,490,226, or about 4 times the average daily volume
in the stock.
The closing price was $17.11, amounting to a market cap of $1,510,000,000,
about -31.48% off the highest price in the last 12 months. The stock has
been trading at a range between $13.31 and $24.97.
KN is in the Consumer Electronics/Appliances industry, part of the Consumer
Non-Durables sector. It first went public in 2014.