SimpleFunctions
8 source contracts·Kalshi 4 + Polymarket 4·refreshed just now·Closes Jan 1, 2030 · 1306d

What will Nasdaq 100 (NDX) close at in December?

Bracket$30,500-$33,000

Liquidity-weighted aggregate sits at 27% across 8 contracts. Kalshi at 27%, Polymarket at 27%.

Implied probability

27%
0%50%100%

Kalshi

27%

4 contracts

Polymarket

27%

4 contracts

Cross-venue gap

0pp

tight

24h move

no pin

24h volume

$57K

8 contracts

Closes

Jan 1, 2030

1306 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 23% (30 days, 30 points)Aggregate: 23% on 2026-06-05
Aggregate of 8 contracts · 30d

Bracket families

4 clusters across 8 contracts.

These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.

Heads-up — heterogeneous clusters

The top two clusters share only 0% of their title tokens — “What price” vs “Will the Nasdaq-100”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

What moved the line

  • May 31↑ 10014pp3852¢ · Polymarket
  • Jun 4↑ 1009pp5546¢ · Polymarket
  • Jun 5↑ 1006pp4640¢ · Polymarket
  • May 3033,000.01 or above6pp3529¢ · Kalshi
  • Jun 325,249.86 or above5pp7873¢ · Kalshi

Recently closed in markets

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

More like this

Adjacent prediction questions.

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.

Last updated on this page: just now.