.Warren Buffett's Berkshire Hathaway is actually now a $1 trillion firm The Washington PostThese Asian companies in Buffett's Berkshire Hathaway portfolio have actually climbed, along with one soaring 30% CNBCWall Road merely gave Warren Buffett a very early birthday present: Berkshire Hathaway is now worth $1 mountain CNNHow Long it Took USA Firms to Connect With a $1 Trillion Evaluation Visual CapitalistBerkshire Hathaway tops $1 trillion market hat for first time as Buffett speeds up BofA share sales Yahoo Financial.