.Warren Buffett's Berkshire Hathaway is actually today a $1 trillion provider The Washington PostThese Asian companies in Buffett's Berkshire Hathaway profile have climbed, along with one escalating 30% CNBCWall Street simply offered Warren Buffett a very early birthday celebration present: Berkshire Hathaway is actually today worth $1 mountain CNNHow Long it Took USA Business to Get To a $1 Trillion Assessment Visual CapitalistBerkshire Hathaway covers $1 trillion market cap for first time as Buffett increases BofA stock sales Yahoo Financing.