SimpleFunctions
19 contractsKalshi + Polymarketrefreshed 7 min agoCloses May 3, 2026 · 0d

SC Internacional vs. Fluminense FC

Liquidity-weighted aggregate sits at 31% across 19 contracts. Kalshi at 34%, Polymarket at 29% — a 5pp cross-venue gap.

Implied probability

31%
0%50%100%

Kalshi

34%

7 contracts

Polymarket

29%

12 contracts

Cross-venue gap

5pp

wide divergence

24h move

no pin

24h volume

$921

19 contracts

Closes

May 3, 2026

0 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 31% (8 days, 8 points)Aggregate: 31% on 2026-05-03
Aggregate of 19 contracts · 8d

Cross-venue edge

Kalshi 34¢ · Polymarket 29¢ · 5pp spread

Buy on Polymarket (29¢, 12 contracts) and sell on Kalshi (34¢) — assuming both contracts settle on the same outcome.

Bracket families

3 clusters across 19 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 17% of their title tokens — “CS Independiente Rivadavia vs. Fluminense FC” vs “Fluminense at Internacional: Totals: Over”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

CS Independiente Rivadavia vs. Fluminense FC

12 contracts$10

Cluster 2

Fluminense at Internacional: Totals: Over

4 contracts$35

Cluster 3

Internacional vs Fluminense Winner

3 contracts$877

What moved the line

  • Apr 27Totals: Over 2.5 goals scored17pp2138¢ · Kalshi
  • Apr 28Totals: Over 1.5 goals scored14pp5064¢ · Kalshi
  • Apr 29Totals: Over 3.5 goals scored12pp719¢ · Kalshi
  • Apr 27Internacional11pp2738¢ · Kalshi
  • Apr 27Fluminense6pp1925¢ · 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.

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: 7 min ago.