Whitney Wolfe Herd, CEO and founder of dating app, Bumble has become the world’s youngest self-made female billionaire at age 31. Shares of Bumble Inc soared 67% in its trading debut to $72 at 1:03 pm on Thursday where her stake left her with a net worth of $1.5billion. According to Bumble’s prospectus, Wolfe Herd owns 21.54 million shares, equivalent...