SimpleFunctions
20 contractsKalshi + Polymarketrefreshed 10 min ago

Preston North End FC vs. Southampton FC - More Markets

Liquidity-weighted aggregate sits at 32% across 20 contracts. Kalshi at 3%, Polymarket at 34% — a 31pp cross-venue gap.

Implied probability

32%
0%50%100%

Kalshi

3%

1 contract

Polymarket

34%

19 contracts

Cross-venue gap

31pp

wide divergence

24h move

no pin

24h volume

$0

20 contracts

Top contract

52¢

$0 · Polymarket

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 36% (5 days, 5 points)Aggregate: 36% on 2026-05-03
Aggregate of 20 contracts · 5d

Cross-venue edge

Kalshi 3¢ · Polymarket 34¢ · 31pp spread

Buy on Kalshi (3¢, 1 contract) and sell on Polymarket (34¢) — assuming both contracts settle on the same outcome.

Bracket families

5 clusters across 20 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 22% of their title tokens — “Vegalta Sendai vs. Tochigi SC - More Markets” vs “Independiente Santa Fe vs. SC Corinthians Paulista - More Markets”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Vegalta Sendai vs. Tochigi SC - More Markets

6 contracts$0

Cluster 2

Independiente Santa Fe vs. SC Corinthians Paulista - More Markets

6 contracts$0

Cluster 3

CS Independiente Rivadavia vs. Fluminense FC - More Markets

5 contracts$0

Cluster 4

Universidad Central de Venezuela FC vs. Independiente del Valle - More Markets

2 contracts$0

Cluster 5

Will Preston North End be promoted from the EFL Championship in the 2025-26 season

1 contract$0

What moved the line

  • Apr 26Preston North End5pp105¢ · Kalshi
  • May 3Tochigi SC (-1.5)4pp3337¢ · Polymarket

Recently closed in general

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: 10 min ago.