YTD (6 month) change $8,200 per share.
This is after tax including a haircut for unrealized capital gains.
But, but .... but ...
Berkshire will end up owning all of Heinz within a few years.
Market cap=$290.3 billion
Tangible book-$150.6 billion
I don't really reason to prefer tangible book to book for this firm. Unless you see future impairments in goodwill.
Haircuts for good will are frequently reasonable, but require yet another yardstick.
Book value on cash should always equal cash. Book value on cash used to buy superior companies should also equal that cash (i.e. good will) without a lot of handwringing.
P/B now back to about 1.35 from 1.46 yesterday. Or, where it was in May.
BRKA=1.436 X Book today