Will SpaceX be assigned to Communication Services in the S&P-500
Leader sits at 95% across 5 bound outcomes, runner-up at 95%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.
Leader probability
Communication Services
Outcomes
5
winner-take-all
Runner-up
95¢
Communication Services
Spread
0pp
contested
24h volume
$4K
modest
Closes
Jan 11, 2028
571 days
Venue
Kalshi
5 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 SpaceX be assigned
Will SpaceX be assigned to Industrials?: Industrials
KXSPACEXSECTOR-X-INDUSTRIA
Will SpaceX be assigned to Communication Services?: Communication Services
KXSPACEXSECTOR-X-COMMUNICA
Will SpaceX be assigned to Communication Services in the S&P?: Communication Services
KXSPACEXSECTOR-SPACEX-COMMUNICA
Will SpaceX be assigned to Energy?: Energy
KXSPACEXSECTOR-X-ENERGY
Will SpaceX be assigned to Industrials in the S&P?: Industrials
KXSPACEXSECTOR-SPACEX-INDUSTRIA
Analysis
This probability reflects market expectations that when SpaceX joins the S&P 500, the index operator will classify it in the Communication Services sector rather than Industrials or Information Technology. The 87% probability for Communication Services suggests traders believe SpaceX's satellite internet business (Starlink) will be weighted heavily enough in the S&P's classification decision to outweigh its launch services and aerospace manufacturing operations. The main drivers are the relative revenue contribution and strategic importance of Starlink versus traditional space activities, along with how S&P Dow Jones Indices interprets the company's primary business line. Classification could shift if SpaceX's financial disclosures prior to index inclusion show unexpected revenue splits, or if S&P provides guidance on methodology. The resolution will occur when S&P Dow Jones formally announces SpaceX's sector assignment, likely triggered by the company's S&P 500 inclusion announcement.
- ›SpaceX has not yet been added to the S&P 500, so classification remains contingent on inclusion and S&P's methodology
- ›Starlink revenue and growth rate relative to launch services and other divisions will be a material factor in sector assignment
- ›S&P Dow Jones Indices has discretion in classification and sometimes reclassifies companies based on evolving business mix
- ›The 87% price reflects significantly higher conviction than the 5-18% prices for Industrials alternatives, suggesting market consensus around Starlink's dominance
- ›No S&P guidance on SpaceX classification methodology has been publicly disclosed as of June 2026, creating interpretive uncertainty
What moved the line
- Jun 17Industrials↑4pp2→6¢ · Kalshi
- Jun 17Communication Services↑3pp92→95¢ · 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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