 The bulk of that, 9.8 billion, was attributed to its Precision Castparts division, which has been hard hit by the aerospace slump. Berkshire paid about 32 billion in 2016 to purchase the maker of aircraft parts. Operating income excluding investment gains totaled 5.5 billion, down 10 from 6.1 billion in the second quarter of 2019, while operating income per share was about 3,422 per class A share, in line with the Bloomberg consensus estimate of 3,418 and down 9 from 3,755 a share in the year-earlier period. 