Warren Buffett's Berkshire Hathaway holds more U.S. Treasury bills than the Federal Reserve

Warren Buffett’ s Berkshire Hathaway has $234.6 billion worth of short-term investments in U.S. Treasury bills, the massive conglomerate’ s second-quarter earnings report Saturday showed.. Buffett has always been a fan of U.S. Treasury bills. Treasury bills are short-term securities issued— and backed— by the U.S. government.