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

comScore, Inc. (symbol: SCOR) was one of the worst losers of the trading
day today (2015-09-02), losing -7.85%. The number of shares that changed
hands was 1,995,363, or about 7 times the average daily volume in the stock.
The closing price was $44.37, amounting to a market cap of $1,760,000,000,
about -31.74% off the highest price in the last 12 months. The stock has
been trading at a range between $35.03 and $65.0.
SCOR is in the Business Services industry, part of the Miscellaneous
sector. It first went public in 2007.