Warren Buffett dismisses Fitch downgrade: ‘There are some things you shouldn’t worry about’ By: MarketWatch August 03, 2023 at 10:15 AM EDT Billionaire investor Warren Buffett says Fitch downgrade won't change Berkshire Hathaway's Treasury-buying plans. Read More >> Related Stocks: Berkshire Hathaway Berkshire Hathaway DJIA