SpaceX sell-off wipes $800bn as stock slips below June debut price

The number the market repriced was $800bn. SpaceX, the AI and space conglomerate that Elon Musk brought to Wall Street in June, shed that sum from its market value as shares fell below $135. It is the first time the stock has traded at that level since its debut.

A listing's first real test

Against the backdrop of a tightening capital environment for high-multiple growth names, SpaceX's June listing has now hit its first sustained pressure point. The company entered public markets positioned across two sectors simultaneously, commercial rocketry and artificial intelligence, each carrying its own valuation premium and its own demand uncertainty. The market had priced both. The sell-off is a read-through for how durable that dual premium was.

At $800bn, the scale of the wipeout places this among the larger absolute valuation declines recorded for a recently listed company. The $135 level, not seen since the debut, now functions as the reference point investors are watching to judge whether the stock can stabilize.

Sector-wide implications

The broader cycle for AI-adjacent growth listings has been one of early enthusiasm followed by sharper scrutiny. SpaceX arrived in June as a representative of that cycle at its peak. A retreat below the debut price is a signal for the class of listings that came to market in the same window, a category that had priced in a demand environment more forgiving than the one currently prevailing.

On balance, the $800bn decline reflects a sector-wide rerating rather than a verdict specific to SpaceX's operations. The macro caveat is straightforward: how far the stock falls, and how quickly it recovers, depends on whether broader conditions in AI and growth equities stabilize. The tape does not yet have an answer at $135.