Short interest in Canadian National Railway Co (NYSE:CNI) increased during the last reporting period, rising from 1.90M to 2.54M. This put -% of the company's publicly available shares short.

Short interest for Canadian National Railway gives investors a sense of the degree to which investors are betting on the decline of Canadian National Railway's stock. Short interest data is updated every two weeks.

Based on the recent average volume of 1.67M shares traded per day, it would take 1.53 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.