.Warren Buffett's Berkshire Hathaway is today a $1 trillion firm The Washington PostThese Asian firms in Buffett's Berkshire Hathaway collection have actually risen, with one shooting up 30% CNBCWall Road simply provided Warren Buffett an early special day gift: Berkshire Hathaway is actually now worth $1 mountain CNNHow Long it Took USA Providers to Connect With a $1 Mountain Appraisal Visual CapitalistBerkshire Hathaway covers $1 mountain market cap for first time as Buffett accelerates BofA share sales Yahoo Financial.