The City hummed with a familiar tension this morning as SpaceX, the maverick rocket company, made its long-awaited debut on the public markets. The ticker SPCEX opened at $120, a 50% premium on the initial offering, before settling into a volatile dance. It was a moment of pure market theatre, and one man watched it with a peculiar mix of pride and detachment.
Jim Cantrell, the self-proclaimed ‘employee number one’ of the company, was on the line from his ranch in Utah. I caught him just as the first trades were clearing. ‘I remember the day Elon and I sketched a rocket on a napkin,’ he said, his voice crackling with static. ‘To see it now, valued at $180 billion, it’s surreal. But the journey has been anything but smooth.’
Cantrell is a reminder of the company’s humble, almost accidental origins. He was there in 2002, a consultant on a proposed Mars mission that quickly became something else entirely. ‘Elon had this vision, crazy at the time,’ he recalled. ‘He wanted to make humanity multiplanetary. I told him he was mad. But I signed on anyway.’
For all the fanfare of the IPO, the numbers are telling. SpaceX’s $180 billion valuation is roughly equivalent to the entire defence budget of the United Kingdom. That’s a lot of g-force for a company that, by its own admission, is still wrestling with the physics of reusability. The Falcon 9 has had its mishaps, and Starship remains a gleam in the engineer’s eye. But markets, as we know, are forward-looking beasts. They are pricing in a future where space is no longer a final frontier but a commercial corridor.
What does this mean for the UK investor? The punters on the London Stock Exchange will be eyeing the SPCEX chart with the same nervous energy they once reserved for tech unicorns. But be warned: this is a high-beta play. The volatility in the first hour alone was enough to make a gilt trader wince. One minute you are up 10%, the next you are paring gains on a tweet.
Cantrell, for his part, is sanguine. ‘The real challenge is not the funding,’ he said. ‘It’s the engineering. People think you can throw money at a rocket and it will fly. It doesn’t work that way. There are laws of physics and constraints of capital. You have to balance both.’
That balance is now in the hands of the market. The IPO will bring scrutiny, quarterly earnings calls, and the tyranny of short-term thinking. Will SpaceX avoid the trap that ensnared other visionaries? The history of high-profile tech listings is littered with cautionary tales. Tesla’s own journey from near-death to market darling is a case in point.
But for now, the mood is celebratory. Employees clutching shares are suddenly paper millionaires. The co-founders, including Cantrell, hold stakes that would make Croesus blush. Yet there is a whisper of concern: when the hype fades, the business of ferrying satellites and eventually humans to Mars must stand on its own. The bottom line, as always, is the rocket equation.
As I put down the phone, I glanced at the ticker again. SPCEX had settled at $118. A modest gain, but a gain nonetheless. The market has spoken. The question now is whether the company can deliver. Cantrell’s parting words echoed: ‘I was employee number one. I guess that makes me a believer.’ In the city, belief is a currency, but it is not a guarantee.








