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

McDermott International, Inc. C (symbol: MDR) was one of the worst losers
of the trading day today (2015-07-15), losing -8.65%. The number of shares
that changed hands was 4,114,357, or about 1 times the average daily volume
in the stock.
The closing price was $4.86, amounting to a market cap of $1,160,000,000,
about -39.78% off the highest price in the last 12 months. The stock has
been trading at a range between $2.1 and $8.07.
MDR is in the Metal Fabrications industry, part of the Capital Goods sector.