.Warren Buffett's Berkshire Hathaway is actually now a $1 mountain firm The Washington PostThese Asian companies in Buffett's Berkshire Hathaway profile have actually climbed, with one rising 30% CNBCWall Road merely offered Warren Buffett an early birthday present: Berkshire Hathaway is actually now worth $1 mountain CNNHow Long it Took U.S. Firms to Reach Out To a $1 Mountain Valuation Visual CapitalistBerkshire Hathaway covers $1 trillion market limit for first time as Buffett accelerates BofA share purchases Yahoo Money management.