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

Ritchie Bros. Auctioneers Incor (symbol: RBA) was one of the worst losers
of the trading day today (2016-12-27), losing -5.58%. The number of shares
that changed hands was 858,857, or about 2 times the average daily volume
in the stock.
The closing price was $34.02, amounting to a market cap of $3,630,000,000,
about -14.86% off the highest price in the last 12 months. The stock has
been trading at a range between $21.03 and $39.96.
RBA is in the Business Services industry, part of the Miscellaneous sector.
Looking at its valuation, the stock is now trading at 32.87 times earnings.