Hello Reader, Walmart beat earnings and the stock dropped 9%. Same-store sales grew 2.6% when the street was looking for 3.8%, and traffic growth got cut in half. Walmart sells to more American households than any company in the country, so when their customers start trading down to the cheaper stuff, that's not really a Walmart problem. Two other things this week worth your time. Moderna ran almost 177% in a single session on cancer trial results, and options that were worth a nickel on...