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

Towers Watson & Co. (symbol: TW) was one of the worst losers of the trading
day today (2015-12-30), losing -7.54%. The number of shares that changed
hands was 1,034,573, or about 3 times the average daily volume in the stock.
The closing price was $129.39, amounting to a market cap of $8,990,000,000,
about -8.8% off the highest price in the last 12 months. The stock has been
trading at a range between $110.16 and $141.88.
TW is in the Professional Services industry, part of the Consumer Services
sector.
Looking at its valuation, the stock is now trading at 21.14 times earnings.