Dating app Bumble set a tentative initial public offering pricing range of between $28 and $30 per share. At the midpoint of that range, Bumble would raise about $1 billion in its IPO. Bumble could be valued as high as $5.69 billion if it sells shares at $30. The Austin, Texas-based company was last valued at $3 billion when private equity giant Blackstone bought a controlling stake. It then...