Dick’s Sporting Goods’ big gun test, Wheels Up is a country club for private jets, and Germany’s negative interest rate opposite day

Summary: Dick’s pulled a classic tool out of its belt: A/B Testing. Our “Unicorn of the Day” is Wheels Up, which claims it’ll be the Airbnb of private jets (and Tom Brady and Serena Williams are members). And Germany’s 30-year bonds hit negative interest rates — so we break down what they are and why they’re so rare.