Buffett's Berkshire doubles earnings
Berkshire Hathaway's first-quarter profit more than doubles
POSTED: 09:49 PM PDT May 04, 2012
UPDATED: 10:20 PM PDT May 04, 2012
Warren Buffett's Berkshire Hathaway posted first-quarter earnings Friday that doubled versus last year, buoyed by gains in its insurance businesses and derivatives holdings.
