IPO of Snapchat parent could be worth $4b to Miranda Kerr and Evan Spiegel

The sharemarket float of messaging phenomenon Snapchat is likely to make chief executive Evan Spiegel and his Australian fiance, model Miranda Kerr, one of the world's richest young couples.

Snapchat's parent Snap Inc filed paperwork for an initial public offering that may value the company as high as $US25 billion ($33 billion), The Wall Street Journal reported.