SPCX Gives Back Its Whole Post-IPO Spike as Profit-Takers Hit a 4% Float

The Round Trip

SPCX is at $190.60, down 8.67% on the session and now sitting *below* where it closed Monday at $192.50. That's the whole story in one number: the parabolic leg that carried shares to an intraday high of $225.64 on Tuesday has been fully retraced. Nothing fundamental drove either side of it — there were no Starlink subscriber figures, no Starship news, and no financial results behind the rally or the reversal. The stock ran roughly 53% above its $135 IPO price in five sessions on momentum and index flow alone, and momentum cuts both ways. Former Nasdaq CEO Robert Greifeld put it bluntly this week: SPCX trades on "the aspiration of what's possible with the human spirit," not on numbers — the kind of quote that ages well on a red day.

Why a 4% Float Moves Like This

The volatility is a structural feature, not a surprise. Only about 4% of SpaceX's shares sit in the free float, so a relatively small amount of flow whips the price around. On the way up, that thin float met retail demand so extreme that, per Vanda Research, investors bought as much SPCX in its first two days as the entire U.S. market bought that week, layered on top of mechanical MSCI index-inclusion buying. Then Tuesday's options listing printed roughly 1.6 million contracts on day one — beating Facebook's 2012 single-stock record by more than 4x, with calls outpacing puts. That's leverage stacked on an already squeezed book. Now every one of those dynamics runs in reverse: profit-takers selling into a market with no deep bid, and the call-buying frenzy cooling off at the same time.

The $62 Gap and the September Test

Underneath the tape is a valuation almost nobody defends on fundamentals. At the peak, SpaceX briefly passed Amazon at around $2.85 trillion. Morningstar's Nicolas Owens, by contrast, carries a fair value estimate of $62 per share — recently trimmed from $63 after the xAI/Cursor deal — putting the stock at a price/fair-value ratio above 3 and making it the second-most expensive name in his coverage. Even that $62 leans heavily on AI and Starship scenarios Morningstar doesn't expect to be solved before 2028. With the first earnings report not due until September 2 and the insider lockup expiring in December, there's no near-term fundamental catalyst to anchor price in either direction — which is exactly why a 4% float can keep setting the tape. Until real numbers arrive, this stays flow-against-flow.