.Warren Buffett's Berkshire Hathaway is now a $1 trillion company The Washington PostThese Asian companies in Buffett's Berkshire Hathaway portfolio have climbed, along with one soaring 30% CNBCWall Street merely gave Warren Buffett an early birthday gift: Berkshire Hathaway is today worth $1 trillion CNNHow Long it Took USA Firms to Reach Out To a $1 Trillion Assessment Visual CapitalistBerkshire Hathaway tops $1 trillion market cap for first time as Buffett speeds up BofA stock sales Yahoo Financial.