$CACC is one of biggest winner #stocks today. read more:

Credit Acceptance Corporation (symbol: CACC) was one of the biggest winners
of the trading day today (2015-12-04), gaining 7.07%. The number of shares
that changed hands was 228,035, or about 1.3 times the average daily volume
in the stock.
The closing price was $236.17, amounting to a market cap of $4,950,000,000,
about -15.04% off the highest price in the last 12 months. The stock has
been trading at a range between $129.82 and $277.98.
CACC is in the Finance: Consumer Services industry, part of the Finance
sector. It first went public in 1992.
Looking at its valuation, the stock is now trading at 16.91 times earnings.