 This is a Bloomberg Money Minute. It happens every year. Now two of the nation's biggest retailers, Target and Walmart, are getting the jump on Amazon's Prime Day sales, which take place next week, by starting their own big summer sales events this week. With that, shares of Target right now up very slightly, about 2%, elsewhere on Wall Street. Stocks are mixed and little changed. That's ahead of some semi-annual congressional testimony from the head of the Federal Reserve later this week, along with a new read on inflation.