SimpleFunctions
10 source contracts·Kalshi 10·refreshed just now·Closes Jul 1, 2026 · 5d

Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least 12 chart days in June 2026

Liquidity-weighted aggregate sits at 38% across 10 Kalshi contracts.

Implied probability

38%
0%50%100%

Kalshi

38%

10 contracts

Polymarket

not bound

Cross-venue gap

single venue

24h move

no pin

24h volume

$19K

10 contracts

Closes

Jul 1, 2026

5 days

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 34% (22 days, 22 points)Aggregate: 34% on 2026-06-25
Aggregate of 10 contracts · 22d

Bracket families

4 clusters across 10 contracts.

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

Cluster 1

Will Ella Langley be #1 on Spotify's Daily Top Songs USA chart for at least

6 contracts$16K

Cluster 2

Will Ariana Grande be #1 on Spotify's Daily Top Songs USA chart for at least

2 contracts$12

Cluster 3

Will Taylor Swift be #1 on Spotify's Daily Top Songs USA chart for at least 3 chart days in June 2026

1 contract$2K

Cluster 4

Will Olivia Rodrigo be #1 on Spotify's Daily Top Songs USA chart for at least 15 chart days in June 2026

1 contract$522

Analysis

This market asks whether Ella Langley will claim the #1 spot on Spotify's Daily Top Songs USA chart for at least 12 days during June 2026. The 26% probability reflects uncertainty about her sustained chart dominance against established competitors like Taylor Swift and Olivia Rodrigo. Chart performance depends on streaming volume, playlist placement, and release timing. Langley's ability to reach 12 chart days would require consistent high streaming momentum throughout the month—her related contract for 6 chart days prices in at 92%, suggesting traders see moderate confidence in her presence but skepticism about extended #1 dominance. The resolution will depend on cumulative daily chart positions tracked by Spotify through month-end, with June's final chart data determining the outcome. Key variables include competing releases from other major artists, the strength of Langley's current promotional cycle, and whether any single release gains sustained streaming strength.

  • Ella Langley's current streaming trajectory and listener base relative to other top charting artists in June 2026
  • Release schedule of competing tracks from Taylor Swift, Olivia Rodrigo, and other major artists during June that could displace her from #1
  • Historical chart persistence: how many days Langley has previously held #1 positions and whether June represents an atypical surge or normal range
  • Playlist algorithm weighting by Spotify and broader listener engagement metrics that determine daily chart rankings
  • The gap between her 6-day contract price (92¢) and 12-day price (26¢) suggests traders view reaching double-digit #1 days as a substantial escalation in difficulty

What moved the line

  • Jun 23At least 15 days40pp343¢ · Kalshi
  • Jun 24At least 15 days33pp4310¢ · Kalshi
  • Jun 24At least 12 days31pp1142¢ · Kalshi
  • Jun 19At least 9 days25pp3762¢ · Kalshi
  • Jun 25At least 12 days25pp4267¢ · 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.

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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.

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