US STOCKS-Apple's surprise sales warning pressures Wall St By: Reuters: Company News February 18, 2020 at 10:14 AM EST * Kroger jumps as Berkshire Hathaway reveals $549 mln stake Indexes down: Dow 0.36%, S&P 0.22%, Nasdaq 0.20% (Updates to open) Read More >> Related Stocks: Apple Berkshire Hathaway Broadcom Ltd ConAgra Foods Franklin Resources Kroger Co Legg Mason Qorvo Inc Qualcomm, Inc. Skyworks Solutions Wal-Mart Stores, Inc.