.Warren Buffett's Berkshire Hathaway is today a $1 mountain company The Washington PostThese Asian firms in Buffett's Berkshire Hathaway portfolio have risen, with one escalating 30% CNBCWall Road merely provided Warren Buffett an early special day present: Berkshire Hathaway is right now worth $1 trillion CNNHow Long it Took U.S. Companies to Reach a $1 Mountain Valuation Visual CapitalistBerkshire Hathaway tops $1 mountain market hat for very first time as Buffett accelerates BofA share purchases Yahoo Financing.