Short interest in White Mountains Insurance Group Ltd (NYSE:WTM) increased during the last reporting period, rising from 53.33K to 53.80K. This put 2.16% of the company's publicly available shares short.

Short interest in White Mountains Insurance Corp (XNYS:WTM) decreased during the last reporting period, falling from 280.30M to 275.20M. This put 1.17% of the company's publicly available shares short.

Based on the recent average volume of 23.26K shares traded per day, it would take 2.31 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.