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

Infinera Corporation (symbol: INFN) was one of the worst losers of the
trading day today (2016-07-28), losing -33.57%. The number of shares that
changed hands was 21,138,165, or about 7 times the average daily volume in
the stock.
The closing price was $8.31, amounting to a market cap of $1,180,000,000,
about -67.08% off the highest price in the last 12 months. The stock has
been trading at a range between $8.2 and $25.24.
INFN is in the Telecommunications Equipment industry, part of the Public
Utilities sector. It first went public in 2007.
Looking at its valuation, the stock is now trading at 23.74 times earnings.