SimpleFunctions

Ariana Grande · Which artists will have #1 hits in the US in May

Ariana Grande is priced at 93¢ on Polymarket. Current book: 89¢ bid, 97¢ ask, 8¢ spread. This outcome ranks #1 of 12 inside Which artists will have #1 hits in the US in May?.

Price history

93¢ current

+6¢
80¢90¢
May 24, 2026May 28, 2026

Contract brief

This market will resolve to "Yes" if any song by the listed artist is in the #1 spot on the Spotify Top 50 - USA chart for any day of the relevant month, ET. Otherwise, this market will resolve to "No". Only primary artist profiles will qualify; features or collaborations under another artist profile will not qualify to resolve the featured artist to "Yes". The resolution source for this market will be Spotify, specifically the Spotify Top 50 - USA chart, which can be found here: https://open.spotify.com/playlist/37i9dQZEVXbLRQDuF5jeBp.

Outcome

Ariana Grande

Rank

#1 of 12

Leader

Ariana Grande 90¢

Range

1¢-90¢

Family volume

$132K

Identifier

0x3822760f...c689

May 28, 2026, 8:08 AM UTC · 13m ago

Implied probability

93¢
Latest venue quote
May 28, 2026, 8:08 AM UTC · 13m ago

Bid

89¢

Ask

97¢

Spread

24h volume

$187

Family rank

#1 of 12

12 outcomes · Which artists will have #1 hits in the US in May?

Closes

May 31, 2026

Family volume

$132K

Orderbook snapshot

89 / 97¢

Polymarket
8¢ spread
BidSize
89¢35
88¢6
81¢194
80¢300
67¢199
63¢20
38¢887
26¢287
AskSize
97¢120
98¢345
99¢1.4K

Contract terms

What resolves this market.

YES condition

This market will resolve to "Yes" if any song by the listed artist is in the #1 spot on the Spotify Top 50 - USA chart for any day of the relevant month, ET. Otherwise, this market will resolve to "No". Only primary artist profiles will qualify; features or collaborations under another artist profile will not qualify to resolve the featured artist to "Yes". The resolution source for this market will be Spotify, specifically the Spotify Top 50 - USA chart, which can be found here: https://open.spotify.com/playlist/37i9dQZEVXbLRQDuF5jeBp.

Venue

Polymarket

Closes

May 31, 2026

Identifier

0x3822760f…c689

SF Signal
SF Index
100000.00
Regime
neutral

Event family

Which artists will have #1 hits in the US in May.

The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.

Total volume

$132K

Outcomes

12

Highest price

Ariana Grande 90¢

Current share

2%

Indicators

Yield, cliff risk, volatility, and regime.

CRI

9

VR

1.21

IAR

2.2/h

Overround

0.3%

Regime

neutral

Score

0.5

Full indicator table

9
VR
1.21
IAR
2.2/h
Overround
0.3%

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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.