Tesla Shares Fall, Snapping 11-Day Winning Streak

Plus: Costco shares fall after the retailer says it will raise its membership fees in September. Pfizer shares rise as the drugmaker says it would schedule additional human testing for an experimental once-daily weight-loss pill. J.R. Whalen reports.  Sign up for the WSJ's free What's News newsletter.  Learn more about your ad choices. Visit megaphone.fm/adchoices