Australian investors are lining up to jump aboard one of the world's hottest initial public offerings, the launch of Elon Musk's SpaceX.
The spaceflight and artificial intelligence company will go public on the US Nasdaq exchange on Friday after raising up to $US75 billion ($A106 billion).
It will have a mammoth $US1.75 trillion ($A2.5 trillion) valuation, making it among the 10 most valuable companies in the world.
CommSec, the lead Australian broker on the float, said on Tuesday it was "experiencing extremely high call volumes" and advised customers to submit an application for the share offer online ahead of the 5pm Wednesday deadline.
CommSec also cautioned hopeful Australian buyers to beware of fake "SpaceX IPO" emails that are phishing scams purporting to be from the broker.
