New Delhi, May 11 -- The space race is heating up ahead of SpaceX's initial public offering. And no, we're not talking about competition for Elon Musk's company from Jeff Bezos' Blue Origin, the United Launch Alliance joint venture of Boeing and Lockheed Martin, or Rocket Labs.

Fund companies are gearing up to promote their space-themed exchange-traded funds. But only one of them actually has pre-IPO access to SpaceX.

That, according to data from Moringstar, would be the Tema Space Innovators ETF, which just launched (sorry) at the end of March. The actively managed fund, which trades under the ticker symbol of NASA, has exposure to SpaceX through a special purpose vehicle (SPV), a pool that purchases privately held shares.

The fund's ...