SimpleFunctions
18 contractsKalshirefreshed 7 min ago

Top USA Song on Spotify on Apr 21, 2026

Liquidity-weighted aggregate sits at 17% across 18 Kalshi contracts.

Implied probability

17%
0%50%100%

Kalshi

17%

18 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$45K

18 contracts

Top contract

93¢

$13K · Kalshi

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 26% (10 days, 10 points)Aggregate: 26% on 2026-05-03
Aggregate of 18 contracts · 10d

Bracket families

17 clusters across 18 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 8% of their title tokens — “Will Olivia” vs “Will Drake be 1 on the Any Spotify Daily Top Songs USA chart in May 2026”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Will Olivia

2 contracts$1K

Cluster 2

Will Drake be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$13K

Cluster 3

Will Morgan Wallen be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$11K

Cluster 4

Will Noah Kahan be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$6K

Cluster 5

Will Taylor Swift be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$4K

Cluster 6

will dtmf be the #1 most streamed song on the 2026 spotify wrapped top 10 songs usa chart on the date that the chart is released for 2026

1 contract$2K

Cluster 7

Will BTS be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$1K

Cluster 8

Will Michael Jackson be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$1K

Cluster 9

Will Justin Bieber be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$1K

Cluster 10

Will Sabrina Carpenter be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$1K

Cluster 11

Will Bruno Mars be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$983

Cluster 12

Will Ariana Grande be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$240

Cluster 13

Will The Weeknd be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$226

Cluster 14

Will Nicki Minaj be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$181

Cluster 15

Will Chris Brown be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$127

Cluster 16

Will Dominic Fike be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$27

Cluster 17

Will Gracie Abrams be 1 on the Any Spotify Daily Top Songs USA chart in May 2026

1 contract$20

What moved the line

  • May 3Ariana Grande28pp4315¢ · Kalshi
  • May 1Taylor Swift25pp1540¢ · Kalshi
  • Apr 30Sabrina Carpenter19pp4223¢ · Kalshi
  • May 2Olivia Rodrigo18pp7254¢ · Kalshi
  • May 2Sabrina Carpenter14pp206¢ · 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.