Bumble Stock Rockets Over 70 br After Wall Street Debut.br The company, founded by br Whitney Wolfe Herd, began trading br on the Nasdaq on Feb. 11.br Bumble set its initial public offering at $43 br but opened at $76 midday Thursday.br Best known for its female-centered dating app, br Bumble also offers other services through br Bumble Bizz and Bumble BFF.br Wolfe Herd has become one of the br youngest female CEOs in tech to br take her company public at 31.br The stock's first day of success has resulted in br Wolfe Herd becoming a self-made billionaire.