.Warren Buffett's Berkshire Hathaway is actually now a $1 mountain firm The Washington PostThese Asian firms in Buffett's Berkshire Hathaway profile have climbed, with one shooting up 30% CNBCWall Road simply provided Warren Buffett a very early birthday present: Berkshire Hathaway is actually today worth $1 trillion CNNHow Long it Took United State Business to Get To a $1 Trillion Assessment Visual CapitalistBerkshire Hathaway covers $1 trillion market limit for very first time as Buffett accelerates BofA stock sales Yahoo Money.