How Much Claim Do Berkshire Hathaway's Operating Businesses Have on Marketable Securities?

The odds are very good that the marketable securities will keep going up even as the businesses expand, Berkshire Hathaway says. The investments reside largely in insurance companies because they have to have capital strength,. But where they reside does not determine who manages them. We don't leave money around awaiting the day when some specific operation needs it.