Cramer's charts suggest investors buy Akamai and sell Walmart By: CNBC.com News May 23, 2018 at 18:23 PM EDT Jim Cramer and technician Marc Chaikin find clear buy and sell signals in the charts of Akamai Technologies and Walmart. Read More >> Related Stocks: Akamai Technologies General Electric Marathon Petroleum Wal-Mart Stores, Inc.