Like Warren Buffett, this investment service has beaten the stock market since the 1960s By: MarketWatch March 02, 2016 at 05:08 AM EST It’s the Investment Quality Trends newsletter, which is celebrating its 50th birthday, writes Mark Hulbert. Read More >> Related Stocks: AT&T Inc American Express Berkshire Hathaway Coca-Cola Company Deere & Co International Business Machines Wal-Mart Stores, Inc.