Berkshire Hathaway has had its AAA counterparty credit rating downgraded a notch by Standard & Poor's (S&P) due to the "very high" risk associated with its $26bn debt-funded acquisition of railway operator Burlington Northern Santa Fe (BNSF).
Berkshire Hathaway has had its AAA counterparty credit rating downgraded a notch by Standard & Poor's (S&P) due to the "very high" risk associated with its $26bn debt-funded acquisition of railway operator Burlington Northern Santa Fe (BNSF).