.Warren Buffett's Berkshire Hathaway is today a $1 trillion provider The Washington PostThese Asian companies in Buffett's Berkshire Hathaway portfolio have surged, with one escalating 30% CNBCWall Road only offered Warren Buffett an early birthday present: Berkshire Hathaway is actually today worth $1 mountain CNNHow Long it Took United State Firms to Reach Out To a $1 Mountain Evaluation Visual CapitalistBerkshire Hathaway tops $1 trillion market limit for first time as Buffett increases BofA assets sales Yahoo Money management.