.Warren Buffett's Berkshire Hathaway is actually now a $1 trillion provider The Washington PostThese Asian companies in Buffett's Berkshire Hathaway collection have climbed, along with one skyrocketing 30% CNBCWall Road only offered Warren Buffett a very early birthday celebration present: Berkshire Hathaway is now worth $1 trillion CNNHow Long it Took USA Business to Get To a $1 Trillion Valuation Visual CapitalistBerkshire Hathaway covers $1 mountain market cap for first time as Buffett accelerates BofA stock purchases Yahoo Finance.