.Warren Buffett's Berkshire Hathaway is now a $1 mountain firm The Washington PostThese Asian firms in Buffett's Berkshire Hathaway profile have actually climbed, along with one rising 30% CNBCWall Road only offered Warren Buffett a very early birthday present: Berkshire Hathaway is right now worth $1 trillion CNNHow Long it Took USA Business to Get To a $1 Trillion Valuation Visual CapitalistBerkshire Hathaway covers $1 trillion market hat for first time as Buffett increases BofA stock sales Yahoo Money.