Supreme Court vacancy in 2026
Supreme Court vacancy in 2026 is priced at 36¢ on Polymarket. Current book: 33¢ bid, 39¢ ask, 6¢ spread. This page tracks a standalone prediction-market contract.
Price history
36¢ current
−3¢Contract brief
This market will resolve to "Yes" if at least one seat on the United States Supreme Court becomes vacant between January 1 and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". The primary resolution source for this market will be official announcements from the U.S. Government. However, a consensus of credible reporting may also be used.
Outcome
Supreme Court vacancy in 2026
Rank
Standalone
Leader
—
Range
—
Family volume
$5K
Identifier
0x4bfb8b7f...6e3b
Jun 1, 2026, 7:38 AM UTC · 7m ago
Implied probability
Bid
33¢
Ask
39¢
Spread
6¢
Reported volume
$5K
Family rank
Standalone
Standalone contract
Closes
Dec 31, 2026
Family volume
$5K
Orderbook snapshot
33 / 39¢
Contract terms
What resolves this market.
YES condition
This market will resolve to "Yes" if at least one seat on the United States Supreme Court becomes vacant between January 1 and December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". The primary resolution source for this market will be official announcements from the U.S. Government. However, a consensus of credible reporting may also be used.
Venue
Polymarket
Closes
Dec 31, 2026
Identifier
0x4bfb8b7f…6e3b
Event family
Supreme Court vacancy in 2026.
The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.
Total volume
$5K
Outcomes
1
Highest price
Supreme Court vacancy in 2026 36¢
Current share
100%
Indicators
Yield, cliff risk, volatility, and regime.
Regime
neutral
Score
0.409
Observability
medium
Event type
political
Odds pages
Related prediction questions
Related readings
Matched from SimpleFunctions blog, opinions, technical guides, concepts, and learn pages.
Kalshi vs Polymarket: Mechanics, Fees, Regulation, Liquidity (2026)
Side-by-side comparison of Kalshi and Polymarket in 2026. Fee math, calibration data, withdrawal speed, and a decision tree for picking the right venue.
Maker / Taker Regime in Prediction Markets: How to Read the Orderbook State
Three regime states (maker-dominated, taker-dominated, neutral) and how to read which one a Kalshi or Polymarket contract is in. Strategy follows regime, not thesis.
Kalshi vs Polymarket: Which Prediction Market Should You Trade?
In-depth comparison of Kalshi and Polymarket for prediction market traders. Regulatory structure, liquidity, fees, API tooling, and cross-venue trading with SimpleFunctions.
MCP Servers for Prediction Markets: Connect Claude Code to Kalshi and Polymarket
Connect Claude Code, Cursor, or Cline to Kalshi and Polymarket prediction markets via MCP. One-line setup, 18 tools, real-time market data for AI agents.
Information Finance Has Arrived: A Material Map of Prediction Markets in Q2 2026
Combined Kalshi + Polymarket volume hit $66B in just four months of 2026 — already greater than the entire 2025 industry total. Bernstein projects $1T by 2030. Two venues hold 95% of US share. The distribution layer fragmented across nine retail surfaces. AI agents are 30% of Polymarket wallet activ
Prediction Market Orderbook Analysis: Reading Depth, Spread, and Liquidity
How to read prediction market orderbooks. Binary settlement, spread-as-percentage, depth asymmetry, executable edge calculation, and cross-venue arbitrage analysis.
SimpleFunctions context
Index, screen, query, and monitor.
Prediction Market Index
Market-wide volatility, geo risk, breadth, and activity around this contract.
Market Screener
Filter adjacent contracts by volume, expiry, IY, CRI, venue, and theme.
Event Probability API
Read 36% as a structured event probability object for agents and apps.
Realtime Data API
Prices, orderbooks, movement, heat, and liquidity indicators across venues.
World State API
Compact market-aware context packets for agent sessions and scheduled refresh.
Hedging Workflows
Map a thesis or exposure to candidate event markets and monitoring paths.
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.