.Warren Buffett's Berkshire Hathaway is now a $1 mountain firm The Washington PostThese Asian companies in Buffett's Berkshire Hathaway portfolio have actually climbed, with one skyrocketing 30% CNBCWall Street simply offered Warren Buffett an early special day gift: Berkshire Hathaway is actually now worth $1 trillion CNNHow Long it Took United State Firms to Connect With a $1 Trillion Valuation Visual CapitalistBerkshire Hathaway covers $1 trillion market cap for first time as Buffett increases BofA equity purchases Yahoo Financial.