SimpleFunctions

Top USA Song on Spotify on May 28, 2026

Janice STFU is priced at 98¢ on Kalshi. Current book: 95¢ bid, 98¢ ask, 3¢ spread. This outcome ranks #1 of 5 inside Top USA Song on Spotify on May 28, 2026.

Price history

98¢ current

+14¢
80¢90¢100¢
May 28, 2026May 28, 2026

Contract brief

If Janice STFU is #1 on the Daily Top Songs USA chart on the chart dated May 28, 2026, then the market resolves to Yes.

Outcome

Janice STFU

Rank

#1 of 5

Leader

Janice STFU 95¢

Range

1¢-95¢

Family volume

$2K

Identifier

KXSPOTIFYD-26MAY28-JAN

May 28, 2026, 8:38 PM UTC · 7m ago

Implied probability

98¢
Latest venue quote
May 28, 2026, 8:38 PM UTC · 7m ago

Bid

95¢

Ask

98¢

Spread

24h volume

$430

Family rank

#1 of 5

5 outcomes · Top USA Song on Spotify on May 28, 2026

Closes

May 29, 2026

Family volume

$2K

Orderbook snapshot

95 / 98¢

Kalshi
3¢ spread
BidSize
95¢119
94¢668
89¢255
86¢20
85¢1.0K
AskSize
98¢19
99¢250

Contract terms

What resolves this market.

YES condition

If Janice STFU is #1 on the Daily Top Songs USA chart on the chart dated May 28, 2026, then the market resolves to Yes.

Venue

Kalshi

Closes

May 29, 2026

Identifier

KXSPOTIFYD-26MAY28-JAN

SF Signal
SF Index
50000.00
Regime
neutral

Event family

Top USA Song on Spotify on May 28, 2026.

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

Total volume

$2K

Outcomes

5

Highest price

Janice STFU 95¢

Current share

25%

Indicators

Yield, cliff risk, volatility, and regime.

CRI

19

Overround

0.2%

Regime

neutral

Score

0.5

Full indicator table

19
Overround
0.2%

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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.