SPCX Up 18.76% as SpaceX Buys Cursor for $60B in Its Own Stock

SpaceX Spent Its Brand-New Currency on Cursor

On June 16, SpaceX signed a definitive agreement to acquire Anysphere — the company behind AI coding agent Cursor — for $60 billion in an all-stock deal. The timing is the whole point: this lands four trading days after the June 12 Nasdaq debut, where SpaceX priced at $135 per share and raised roughly $75 billion.

This wasn't improvised. SpaceX disclosed a conditional option back in April to either buy Anysphere for $60 billion in stock or walk away for a $10 billion break fee — the IPO simply minted the currency to exercise it. Cursor had been on track to close a $2 billion round at a $50 billion valuation and took the SpaceX offer instead, with one source noting the funding round 'wasn't going to be enough to help it break even.' The deal is structured as a merger with a SpaceX subsidiary, is expected to close in Q3 2026, and is the largest acquisition of an AI developer-tools company on record.

An All-Stock Deal Funded by a Thin-Float Premium

The all-stock structure is what makes this matter for the tape. SpaceX is paying with equity the market has bid above $2.5 trillion — a valuation that by June 16 exceeded the entire crypto market's ~$2.27 trillion cap. And that price sits on a public float of just 3-5% of shares outstanding, with the rest locked up.

SpaceX merged its internal AI division with xAI earlier in 2026, and Cursor slots directly into that — an enterprise developer-tools foothold for a unit racing to catch the major labs, reportedly running above $4 billion in annualized revenue. The reflexive loop is hard to miss: a richly-valued, thin-float stock becomes cheap M&A currency, the acquisition extends the AI story that justifies the multiple, and the multiple makes the next deal cheaper still. SpaceX added close to $1 trillion in market value in days — 'roughly 16 Cursors' — and spent part of it before the float ever loosened.

The Mechanical Bid Hasn't Even Started

Underneath the narrative is forced buying the deal doesn't touch. Index inclusion is queued: Nasdaq-100 fast entry around 15 trading days post-IPO, with CRSP-based funds (VTI/VUG) eligible as early as five sessions out. SpotGamma estimates $22-27 billion of near-term passive buying landing on a 3-5% float — index funds purchasing mechanically, regardless of price.

The one door that's closed: S&P Dow Jones rejected its own fast-track proposal on June 4, so S&P 500 inclusion waits until at least mid-2027. For a perp trader, the setup is a sliver of tradable supply absorbing a confirmed M&A narrative and a scheduled passive bid at the same time. SPCX opened at $150 and is now up roughly 40% from that print across three sessions — the kind of reflexive float squeeze that overshoots hard in both directions, and where the HIP-3 perp can diverge from spot on basis when liquidity gets thin.