Two weeks ago, Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) announced its newly formed commercial property-casualty insurance group, Berkshire Hathaway Specialty Insurance, is officially up and running.

While that may not be a surprise given the fact Berkshire hired four of AIG's (NYSE:AIG) senior property-casualty executives in April, investors may not realize just how much this unit could eventually contribute to Berkshire's operations as the company takes market share from other players in the space, says Fool contributor Steve Symington in the following interview with the Fool's Erin Miller.

But what do you think? Please watch the video to get Steve's take, and then let us know whether you believe specialty insurance significantly improves Berkshire Hathaway stock's value.