.Warren Buffett's Berkshire Hathaway is today a $1 trillion company The Washington PostThese Asian companies in Buffett's Berkshire Hathaway portfolio have climbed, with one skyrocketing 30% CNBCWall Street just provided Warren Buffett a very early birthday party gift: Berkshire Hathaway is now worth $1 trillion CNNHow Long it Took United State Companies to Reach Out To a $1 Mountain Appraisal Visual CapitalistBerkshire Hathaway covers $1 trillion market limit for very first time as Buffett speeds up BofA assets purchases Yahoo Money.