SimpleFunctions
Winner-take-all answer·6 source contracts·Kalshi 6·refreshed just now·Closes Dec 2, 2026 · 100d·5pp · 33h

Will there be more than 12 Atlantic hurricanes in 2026

Leader sits at 47% across 6 bound outcomes, runner-up at 37%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.

Leader probability

47%

Above 10

runner-up 37¢leader 47¢

Outcomes

6

winner-take-all

Runner-up

37¢

Above 12

Spread

10pp

contested

24h volume

$51

thin orderbook

Closes

Dec 2, 2026

100 days

Venue

Kalshi

6 bound

30-day trend

0%50%100%-30d-3w-2w-1wtodayAbove 10: 40% (30 days, 28 points)Above 10: 40% on 2026-08-24Above 12: 37% (30 days, 28 points)Above 12: 37% on 2026-08-24Above 14: 18% (30 days, 23 points)Above 14: 18% on 2026-08-21
Above 1040¢Above 1237¢Above 1418¢
Top 3 candidates by current price · 30d

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.

Analysis

The 22% probability reflects traders' assessment that 2026 will see more than 12 Atlantic hurricanes, with the leading contract at 42% suggesting most traders expect 10–12 hurricanes. Atlantic hurricane frequency depends on sea-surface temperatures, atmospheric wind shear, and other climate conditions that typically peak in late summer and autumn. The 2026 season will resolve through the National Hurricane Center's official count, recorded as storms reach hurricane strength. Current pricing suggests traders see a roughly one-in-five chance of exceeding the 12-hurricane threshold, compared to historical averages. The resolution date arrives in late November 2026 when the official Atlantic hurricane season ends, though most uncertainty will narrow significantly by October as the peak months conclude and actual storm counts become clearer.

  • Sea-surface temperature anomalies in the Atlantic basin through September–October 2026 will be a primary driver; warmer conditions typically favor more hurricane formation
  • Atmospheric wind shear patterns during peak season months (August–October) directly suppress or enable hurricane development and intensification
  • The official count from the National Hurricane Center provides the only authoritative resolution; storms must reach sustained winds of 74 mph to be classified as hurricanes
  • Historical Atlantic hurricane frequency averages 7–8 per season, making 12+ storms a notably above-average outcome reflected in the lower probability
  • As of late August 2026, two months of the peak season remain, allowing significant revision to seasonal forecasts as actual storms form and meteorological conditions evolve

What moved the line

  • Aug 17Above 1016pp6145¢ · Kalshi
  • Aug 24Above 1212pp2537¢ · Kalshi
  • Aug 17Above 1210pp3424¢ · Kalshi
  • Aug 21Above 165pp49¢ · Kalshi
  • Aug 20Above 104pp4440¢ · Kalshi

Recently closed in general

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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