$CSTM is one of biggest winner #stocks today. read more:

Constellium N.V. (symbol: CSTM) was one of the biggest winners of the
trading day today (2016-08-30), gaining 17.37%. The number of shares that
changed hands was 4,707,814, or about 6.3 times the average daily volume in
the stock.
The closing price was $7.23, amounting to a market cap of $762,930,000,
about -27.26% off the highest price in the last 12 months. The stock has
been trading at a range between $3.38 and $9.94.
CSTM is in the Metal Fabrications industry, part of the Basic Industries
sector. It first went public in 2013.