Artist with the most monthly Spotify listeners at the end of Aug 2026
Leader sits at 69% across 7 bound outcomes, runner-up at 11%. This is a winner-take-all market — the headline is the leader’s price, not an arithmetic mean.
Leader probability
Bruno Mars
Outcomes
7
winner-take-all
Runner-up
11¢
Ariana Grande
Spread
58pp
dominant leader
24h volume
$142
thin orderbook
Closes
Aug 31, 2026
67 days
Venue
Kalshi
7 bound
30-day trend
Bracket family
How the bracket ladder is priced.
Each row is one outcome on the venue. Sorted by 24h volume — the heaviest book is at the top.
Cluster 1
Artist with the most monthly Spotify listeners at the end of Aug 2026
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Taylor Swift
KXTOPMONTHLY-26AUG-TAY
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Ariana Grande
KXTOPMONTHLY-26AUG-ARI
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Rihanna
KXTOPMONTHLY-26AUG-RIH
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Ed Sheeran
KXTOPMONTHLY-26AUG-ED
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Coldplay
KXTOPMONTHLY-26AUG-COL
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Justin Bieber
KXTOPMONTHLY-26AUG-JUS
Artist with the most monthly Spotify listeners at the end of Aug 2026?: Bruno Mars
KXTOPMONTHLY-26AUG-BRU
Analysis
This market tracks who will have the most monthly Spotify listeners when measured at the end of August 2026. Bruno Mars currently leads at 51% probability, suggesting traders see him as slightly more likely than not to maintain or achieve the top streaming position by that date. The current probability reflects uncertainty about streaming momentum over the next three months, with factors including new release cycles, touring activity, and playlist placement all potentially shifting listener counts. The market will resolve definitively when Spotify publishes official listener data for August 2026, eliminating speculation about which artist holds the top position at that specific moment.
- ›Bruno Mars' current streaming position and trajectory relative to competitors like Justin Bieber (18¢) and Drake
- ›Release timing of new music from major artists between May and August 2026, which typically drives significant listener fluctuations
- ›Playlist algorithm changes and editorial decisions at Spotify that can concentrate or disperse listener attention across artists
- ›Tour schedules and live performance activity during the May-August period, which correlate with streaming engagement
- ›Historical patterns showing whether top-streamed artists typically maintain their position across three-month periods or experience rapid turnover
What moved the line
- Jun 24Taylor Swift↓12pp14→2¢ · Kalshi
- Jun 22Taylor Swift↑10pp5→15¢ · Kalshi
- Jun 22Bruno Mars↑7pp65→72¢ · Kalshi
- Jun 19Bruno Mars↑4pp65→69¢ · Kalshi
- Jun 22Ariana Grande↓3pp13→10¢ · Kalshi
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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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