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

MDC Partners Inc. (symbol: MDCA) was one of the worst losers of the trading
day today (2016-07-29), losing -29.85%. The number of shares that changed
hands was 5,567,269, or about 9 times the average daily volume in the stock.
The closing price was $12.76, amounting to a market cap of $641,270,000,
about -46.61% off the highest price in the last 12 months. The stock has
been trading at a range between $12.38 and $23.9.
MDCA is in the Advertising industry, part of the Technology sector.