$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 (2016-02-15), losing -14.04%. The number of shares
that changed hands was 4,644,877, or about 3 times the average daily volume
in the stock.
The closing price was $9.98, amounting to a market cap of $882,740,000,
about -55.31% off the highest price in the last 12 months. The stock has
been trading at a range between $9.69 and $22.33.
KN is in the Consumer Electronics/Appliances industry, part of the Consumer
Non-Durables sector. It first went public in 2014.