SimpleFunctions
20 contractsKalshi + Polymarketrefreshed 23 min ago

Ulsan HD FC vs. Pohang Steelers FC

Liquidity-weighted aggregate sits at 32% across 20 contracts. Kalshi at 29%, Polymarket at 32% — a 3pp cross-venue gap.

Implied probability

32%
0%50%100%

Kalshi

29%

1 contract

Polymarket

32%

19 contracts

Cross-venue gap

3pp

modest gap

24h move

no pin

24h volume

$183

20 contracts

Top contract

36¢

$86 · Polymarket

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 33% (9 days, 9 points)Aggregate: 33% on 2026-05-03
Aggregate of 20 contracts · 9d

Cross-venue edge

Kalshi 29¢ · Polymarket 32¢ · 3pp spread

Buy on Kalshi (29¢, 1 contract) and sell on Polymarket (32¢) — assuming both contracts settle on the same outcome.

Bracket families

4 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 0% of their title tokens — “Gangwon FC vs. Pohang Steelers FC” vs “Gimcheon Sangmu FC vs. Ulsan HD FC”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Gangwon FC vs. Pohang Steelers FC

12 contracts$29

Cluster 2

Gimcheon Sangmu FC vs. Ulsan HD FC

6 contracts$154

Cluster 3

K-League: Winner: Pohang Steelers

1 contract$0

Cluster 4

Gangwon vs Pohang Steelers Winner

1 contract$0

What moved the line

  • May 2Pohang Steelers FC (-2.5)24pp3713¢ · Polymarket
  • May 2Pohang Steelers FC (-1.5)23pp3512¢ · Polymarket
  • May 2Gangwon FC (-2.5)15pp3318¢ · Polymarket
  • May 3Gangwon FC (-2.5)10pp188¢ · Polymarket
  • May 3O/U 4.510pp199¢ · Polymarket

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: 23 min ago.