Walmart outlook, Fed minutes, Cisco earnings: 3 Things

Retailer Walmart (WMT) raises its profit outlook after blowing past second-quarter earnings estimates, seeing significant growth in sales. Bond markets are reacting to the Fed's July FOMC meeting minutes released yesterday. Cisco (CSCO) shares are trending higher in the pre-market session after beating on quarterly revenue and its investments in AI. Yahoo Finance's Julie Hyman highlights several of this morning's top stories.