White Mountains Insurance Group Ltd. (NYSE:WTM) gapped up before the market opened on Thursday . The stock had previously closed at $823.94, but opened at $824.02. White Mountains Insurance Group shares last traded at $825.19, with a volume of 11,305 shares.

Separately, Zacks Investment Research lowered White Mountains Insurance Group from a “strong-buy” rating to a “sell” rating in a research report on Wednesday, May 11th.

The company has a 50 day moving average price of $821.70 and a 200 day moving average price of $808.24. The firm has a market capitalization of $4.03 billion and a PE ratio of 8.16.

White Mountains Insurance Group (NYSE:WTM) last issued its quarterly earnings results on Wednesday, August 3rd. The company reported ($8.93) earnings per share (EPS) for the quarter, missing the consensus estimate of $1.48 by $10.41. Equities research analysts predict that White Mountains Insurance Group Ltd. will post ($5.00) earnings per share for the current fiscal year.

In other news, insider Jess Brian Palmer sold 1,370 shares of the company’s stock in a transaction on Thursday, August 4th. The stock was sold at an average price of $820.89, for a total transaction of $1,124,619.30. Following the transaction, the insider now owns 2,031 shares of the company’s stock, valued at $1,667,227.59. The sale was disclosed in a legal filing with the Securities & Exchange Commission, which is available at this hyperlink.

White Mountains Insurance Group, Ltd. is an insurance holding company. The Company’s segments include OneBeacon, HG Global/BAM and Other Operations. Its principal businesses are conducted through its insurance, reinsurance and insurance services subsidiaries and affiliates. Its OneBeacon segment consists of OneBeacon Insurance Group, Ltd., which owns a family of property and casualty insurance companies (collectively, OneBeacon).

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