.Warren Buffett's Berkshire Hathaway is actually today a $1 trillion business The Washington PostThese Asian firms in Buffett's Berkshire Hathaway portfolio have climbed, with one rising 30% CNBCWall Road simply provided Warren Buffett an early birthday party present: Berkshire Hathaway is actually now worth $1 mountain CNNHow Long it Took USA Business to Reach a $1 Mountain Appraisal Visual CapitalistBerkshire Hathaway tops $1 trillion market limit for very first time as Buffett increases BofA share purchases Yahoo Financial.