CarMax, (KMX) Down Ahead of Earnings

CarMax, Inc KMX shares docked 4.5% to $50.90, before reporting its quarterly earnings at $0.71 per share on revenue of $3.68 billion. CarMax shares gained 0.38 percent to $53.50 in after-hours trading. Share volume was 823,000, nicking out an all-day average of 818,000