Imagine the world is suddenly building 100 highways at once — but not on Earth. The highways are in orbit, on the Moon, and between the two. Most of the news, most of the money, and most of the stock chatter is about which rocket companies will be the biggest, which billionaires will plant their flags first, and which constellation will beam internet to the most people.
Meanwhile, in a quiet building in Manchester, New Hampshire, there's one company that makes the rad-hard chip every NASA mission relies on. There's one small factory in Jacksonville, Florida, that builds the roll-out solar panels powering the ISS and the Lunar Gateway. There's three Western suppliers of the engines that move satellites once they're up there. There's two companies with hourly-revisit cameras pointed at the Earth, and one of them just invented a way to sell whole satellites — plus their data feeds — to allied governments by the dozen.
SpaceX is the gravity. It dominates 90% of payload mass to orbit. It is also private — you cannot buy it. So every dollar that wants "space exposure" gets funneled into the public pure-plays. If you own a piece of the small suppliers, you don't care which rocket company wins. You're getting paid by all of them, by NASA, by the Space Force, and increasingly by Sweden and Japan and Germany. That's the narrow places. Same playbook as AI and Robotics. Different orbit.
Wildcard · Sector-Wide Catalyst
When SpaceX goes public.
SpaceX has not filed publicly as of May 21, 2026 — but tender-offer valuations have ranged from $350 billion to over $400 billion through 2025–2026, and both a Starlink-only spin and a whole-company IPO have been actively rumored. Whenever the filing lands — weeks, months, or quarters away — it reprices the entire space asset class in a single trading session. SpaceX flies roughly 90% of payload mass to orbit and is the gravitational center of every name on this page. Position sizing must account for this; the IPO is simultaneously the biggest sector catalyst and the biggest tail risk.