in its "early days", and indicated he believed there may be similarities to the Japanese asset price bubble. The investment team of HWIC benefited from the subprime fallout, like John Paulson's New York-based Paulson & Co., Kyle Bass' Hayman Capital, Andrew Lahde's California-based Lahde Capital, Julian Robertson's "Tiger Cubs" (formerly known as "Tiger Management Corp."), and Michael Burry's Scion Capital (White Mountains Insurance Group is a minority investor in Scion Capital LLC), they have used derivatives to bet on the housing bubble. As of September 30, 2007, Fairfax and its subsidiaries owned an enormous credit default swap (CDS) book with a $18.5 billion notional amount and an average term to expiry of 4.2 years, on about 25 to 30 companies, the majority of which were bond insurers and mortgage lenders. The CDS book had a cost of $344 million, and a market value of $546 million. The market value of these swaps had fluctuated significantly in the 3rd quarter of 2007 from less than $200 million at the end of June, to $537 million at the end of July to almost $1 billion (twice that value) in August to $544 million at the end of September. Recent years As of December 31, 2010, Fairfax had total assets of approximately $31.7 billion, and its revenue for the prior twelve months was approximately $6.2 billion. Since Watsa took over, the company book value per share has compounded by 23% per year, while the common stock price has followed the growth at 19% per year. On September 23, 2013, Fairfax made an offer to purchase cell phone maker BlackBerry for $4.7 billion or $9.00 a share. BlackBerry announced it had signed a letter of intent but would be open to other offers until November 4, 2013. Fairfax already held 10% of BlackBerry. The deal was later scrapped in favor of a US$1 billion cash injection which, according to one analyst, represented the level of confidence BlackBerry's largest shareholder had in the company. In 2016, Fairfax offered seed funding to Kitchener startup, DOZR Inc. through their investment and innovation unit, Fair Ventures. Fair Ventures and Fairfax went on to support DOZR through multiple funding pitches, including the Colorado-based BaseCamp Equity Partners pitch in 2019. This pitch landed DOZR with $14 million CAD. In 2017, Fairfax Financial Holdings increased its ownership of Torstar's non-voting shares from 20% to 40%. In late May 2020, Torstar accepted