On February 14, 2018, Chipotle Mexican Grill (CMG) hired a new CEO. Assume that the stock market correctly reflects public information. Which of the following is correct? To assess the market's view of the new hire, we should calculate CMG's realized return for the 14th. A negative realized return would indicate that shareholders view the new hire favorably To assess the market's view of the new hire, we should calculate CMG's abnormal return for the 14th. A positive abnormal return would indicate that shareholders view the new hire favorably We should assesses whether CMG volume changed. An increase in volume would indicate that the new executive is expected to benefit shareholders. To assess the market's view of the new hire, we should calculate CMG's abnormal return for the 14th. A negative abnormal return would indicate that shareholders view the new hire favorably