Question

The Food and Drug Administration (FDA) announced yesterday that they would approve a new cancer-fighting drug from Pharma Company. You observe that the shares of Pharma Company had an abnormal return of 0% yesterday. This suggests that

Answer 1

the approval was already anticipated by the market

Step-by-step explanation:

This abnormal return of 0% suggests that the approval was already anticipated by the market. Meaning that the price of the Pharma company's stock had already been affected by the speculation previously and when the FDA made the announcement investors had already made their move in the market with regards to Pharma's stock. Thus causing no further move and a return of 0% to occur.