Warren Buffett’s Berkshire Hathaway is now a $1 trillion company The Washington PostThese Asian firms in Buffett’s Berkshire Hathaway portfolio have surged, with one soaring 30% CNBCWall Street just gave Warren Buffett an early birthday gift: Berkshire Hathaway is now worth $1 trillion CNNHow Long it Took U.S. Companies to Reach a $1 Trillion Valuation Visual CapitalistBerkshire Hathaway tops $1 trillion market cap for first time as Buffett accelerates BofA stock sales Yahoo Finance