.Warren Buffett's Berkshire Hathaway is actually today a $1 mountain provider The Washington PostThese Asian companies in Buffett's Berkshire Hathaway profile have surged, along with one escalating 30% CNBCWall Street merely provided Warren Buffett a very early birthday present: Berkshire Hathaway is actually today worth $1 trillion CNNHow Long it Took United State Firms to Connect With a $1 Mountain Appraisal Visual CapitalistBerkshire Hathaway tops $1 trillion market cap for first time as Buffett accelerates BofA share purchases Yahoo Finance.