SPCX Unwind Deepens as a $60B All-Stock Cursor Deal Stokes Dilution

Paying for Cursor With Its Own Currency

SPCX is down 9.59% to $189.10, deepening a slide that has now erased about 16% from the $225.64 intraday high it printed on June 16. The detail the momentum tape glossed over: that top landed the same day SpaceX announced a $60 billion all-stock acquisition of Anysphere, the parent of AI coding tool Cursor. All-stock is the operative word. Musk is paying for Cursor with SPCX shares that were days old and trading at a triple-digit sales multiple — Fortune called the freshly listed stock a "super currency" that covered the deal in a few hours of trading. Every holder is now underwriting not just rockets and Starlink but a $60B bet on out-coding Anthropic and OpenAI, funded with paper whose price is the entire question. Morningstar trimmed its fair value to $62 from $63 on the news, saying the deal pushes "an already richly valued stock further into expensive territory." The deal targets a Q3 2026 close; the dilution is already in the tape.

A 4% Float Cuts Both Ways

A single deal headline can swing the whole tape because the float is almost nothing: only about 4.2% of SPCX actually trades. That thinness is a one-way amplifier on the way up — Vanda Research clocked retail buying $369.8 million of SPCX across three sessions, roughly 4x what went into QQQ or NVDA over the same window, with almost no offsetting supply to absorb it. The asymmetry cracked this week. Options started trading Tuesday, giving bears a practical short for the first time, and by Wednesday's close puts were 44% of flow even as 1.7 million contracts changed hands. Future Fund's Gary Black said SPCX "acts more like a meme stock than one driven by fundamentals" and that, before options existed, "there were few outlets for selling." The same thin float that launched it is now what's unwinding it.

The Supply Clock the Run Just Armed

Here's what the chase is underpricing. SpaceX's lockup carries an accelerated-unlock trigger: if SPCX closes at or above $175.50 — 30% over the $135 IPO price — for five of ten consecutive sessions before its first quarterly report, the initial insider release jumps from 20% to 30% of eligible holdings. At $189 the stock is sitting comfortably inside that band. So the post-IPO run isn't just inviting profit-taking; it is actively pulling forward a larger unlock of insider stock into a market that today has almost none to trade. With the rest of the lockup overhang stacked behind it, the direction of travel for float is up — and for a name whose entire premium rests on scarcity, more float is the bear case writing itself.

What the Multiples Actually Say

Strip the narrative and valuation is the whole argument. Morningstar pegs fair value at $62 — roughly 67% below spot — which leaves SPCX at more than 3x its own fair-value estimate and, in Morningstar's framing, one of the two most expensive names in the firm's entire coverage. On 2025 revenue the stock trades around 141x sales; even on Morningstar's 2026 forecast it sits near 78x, and the bull case explicitly assumes a rapidly reusable Starship and commercialized space data centers the firm doesn't expect before 2028. The business underneath, per the S-1, did $18.7B of 2025 revenue — Starlink $11.4B (up 83% year over year), launch $4.1B, AI and compute $3.2B — against a $4.9B net loss as xAI integration outruns orbital profit. Former Nasdaq CEO Robert Greifeld said the quiet part out loud: SPCX trades "not on fundamentals" but on "the aspiration of what's possible". The first real fundamental test is still weeks away. Until then this is a float-and-flows market — and the flows just turned.