64% — 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: Before 2028 at 64% · Kalshi 64% · 9 contracts · $2K volume · medium confidence Updated 2026-07-24 00:26:39 UTC Tracks the leading outcome in a winner-take-all prediction market set with 9 outcomes. Why this matters: Markets are pricing a 58% probability that Tesla and SpaceX will announce a definitive, binding merger or acquisition agreement by May 1, 2027. Currently, both companies operate independently under Elon Musk's leadership, though no public negotiations have been disclosed. The high probability reflects Musk's ownership stake in both entities and theoretical synergy arguments, but is tempered by regulatory uncertainty—particularly SEC and FCC scrutiny of such a combination—and the near-term improbability reflected in the 13% odds assigned to October 2026. Key drivers include Musk's public statements about corporate structure, any disclosure of board discussions, and regulatory signals. The probability gradient across contract dates suggests markets view a deal announcement as more likely after mid-2026 than before, implying either ongoing deliberation or low current likelihood of imminent announcement. Key factors: - No official merger discussions or binding agreements have been publicly announced as of June 2026, and both companies maintain separate operational and governance structures - Regulatory approval would likely require SEC, FTC, and FCC review; a 58% market probability implies material optimism about regulatory clearance that may not reflect actual bureaucratic likelihood - Shorter-dated contracts (October 2026: 13¢, November 2026: 16¢) trade substantially below the longer-dated May 2027 contract (58¢), indicating market expectation of announcement more likely in late 2026 or early 2027 - Musk's dual ownership is a prerequisite but insufficient condition; formal acquisition or merger requires active board engagement, legal documentation, and public disclosure of binding terms - Historical precedent shows mega-cap consolidations involving regulatory assets (SpaceX's satellite licenses, Tesla's vehicle certifications) typically require 12-24 months of formal negotiation after announcement Contracts: - 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, 2028?: Before 2028 — 64¢ Kalshi $150 (weight 8%) - 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 — 44¢ Kalshi $120 (weight 7%) - 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 — 40¢ Kalshi $55 (weight 3%) - 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 — 37¢ Kalshi $190 (weight 10%) - 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 — 32¢ Kalshi $5 (weight 0%) - 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 — 21¢ Kalshi $40 (weight 2%) - 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 — 13¢ Kalshi $910 (weight 50%) - 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 — 5¢ Kalshi $59 (weight 3%) - ... and 1 more --- ## Methodology SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours. ## SF Signal - SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration. - No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only. --- *Last verified: 2026-07-24T00:20:50.602Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "64% per prediction markets (SimpleFunctions, July 2026)" Canonical: https://simplefunctions.dev/answer/companyactionmerger-27 Full data: https://simplefunctions.dev/api/public/query?q=Will%20Tesla%20or%20SpaceX%20announce%20a%20definitive%2C%20binding%20agreement%20for%20Tesla%20to%20acquire%20SpaceX%2C%20SpaceX%20to%20acquire%20Tesla%2C%20or%20the%20two%20entities%20to%20merge%20or%20combine%20in%20any%20structure%20that%20results%20in%20a%20transfer%20of%20controlling%20interest%20or%20consolidation%20of%20the%20two%20entities%20under%20common%20corporate%20ownership%20before%20Oct%201%2C%202026 Provider: SimpleFunctions — https://simplefunctions.dev