Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Oct 1, 2026
Leader sits at 53% across 8 bound outcomes, runner-up at 38%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.
Leader probability
Before May 1, 2027
Outcomes
8
winner-take-all
Runner-up
38¢
Before Apr 1, 2027
Spread
15pp
contested
24h volume
$3K
modest
Closes
May 1, 2027
329 days
Venue
Kalshi
8 bound
30-day trend
Bracket family
How the bracket ladder is priced.
Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.
Cluster 1
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Apr 1, 2027?: Before Apr 1, 2027
KXCOMPANYACTIONMERGER-27-27APR01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before May 1, 2027?: Before May 1, 2027
KXCOMPANYACTIONMERGER-27-27MAY01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Mar 1, 2027?: Before Mar 1, 2027
KXCOMPANYACTIONMERGER-27-27MAR01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Nov 1, 2026?: Before Nov 1, 2026
KXCOMPANYACTIONMERGER-27-26NOV01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Jan 1, 2027?: Before Jan 1, 2027
KXCOMPANYACTIONMERGER-27-27JAN01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Feb 1, 2027?: Before Feb 1, 2027
KXCOMPANYACTIONMERGER-27-27FEB01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Oct 1, 2026?: Before Oct 1, 2026
KXCOMPANYACTIONMERGER-27-26OCT01
Will Tesla or SpaceX announce a definitive, binding agreement for Tesla to acquire SpaceX, SpaceX to acquire Tesla, or the two entities to merge or combine in any structure that results in a transfer of controlling interest or consolidation of the two entities under common corporate ownership before Dec 1, 2026?: Before Dec 1, 2026
KXCOMPANYACTIONMERGER-27-26DEC01
Analysis
This market estimates a 17% chance that Tesla and SpaceX will announce a definitive agreement combining the two companies under common ownership before October 1, 2026. The low probability reflects that both companies operate independently with separate capital structures, regulatory oversight, and stated corporate strategies. Elon Musk controls both entities, which theoretically enables such a combination, but combining a public automotive manufacturer with a privately held aerospace company would face substantial regulatory scrutiny, shareholder approval requirements, and operational complexity. The probability remains meaningful but modest because while a merger is legally possible, it would require extraordinary circumstances or a dramatic shift in corporate strategy. Key dates include SpaceX's potential IPO (rumored for early-to-mid 2026), which would either facilitate or complicate such a combination, and any major Tesla shareholder activism or strategic announcements over the next five months.
- ›SpaceX remains privately held with no announced IPO date certain, making a merger structurally more complex than combining two public entities
- ›Tesla shareholder approval would be required for any acquisition or merger, introducing regulatory and governance uncertainty
- ›Kalshi contracts trading at 18% average versus Polymarket at 5% indicates significant disagreement about probability across prediction markets
- ›No public statements from either company's leadership indicate merger consideration, and both maintain distinct strategic focuses (automotive/energy vs. space/satellites)
- ›SpaceX IPO timing before October 2026 would materially affect transaction feasibility and regulatory treatment
What moved the line
- Jun 2Before Oct 1, 2026↓11pp24→13¢ · Kalshi
- Jun 1Before Dec 1, 2026↓9pp37→28¢ · Kalshi
- Jun 3Before Jan 1, 2027↑7pp33→40¢ · Kalshi
- Jun 5Before Dec 1, 2026↓7pp25→18¢ · Kalshi
- Jun 4Before Apr 1, 2027↓6pp50→44¢ · Kalshi
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These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.
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How we compute these odds
SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.
For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.
Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.
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